Heart Structure And Function Test! Trivia Quiz
(49).jpg "Heart Structure And Function Test! Trivia Quiz - Quiz")
The wall of the heart is made of three layers. These include the epicardium, the myocardium, and the endocardium. The pericardium holds it in place, and the right atrium, left atrium, right ventricle, and left ventricle makes up the heart's chambers. There are also blood vessels and valves. The primary function of the heart is to pump blood to the body. You should clearly take this important quiz.
Questions and Answers
- 1.
The __________ System is a continues one way movement. That consists of the ________ and _____________ Vessels
Explanation
The circulatory system is a continuous one-way movement that consists of the heart and blood vessels. The heart pumps blood throughout the body, and the blood vessels carry the blood to different parts of the body. This system is responsible for delivering oxygen and nutrients to the cells and removing waste products.Rate this question:
- 2.
The Circulatory System carries ________ and _______ to the cells and _________ products of cell metabolism away.
Explanation
The circulatory system carries oxygen and nutrients to the cells and waste products of cell metabolism away. Oxygen is necessary for cellular respiration, while nutrients provide energy and building blocks for cellular processes. Waste products, such as carbon dioxide and metabolic byproducts, need to be removed from cells to maintain cellular health.Rate this question:
- 3.
The Heart is a ____________ responsible for pumping blood throughout the blood vessels of the body.
Explanation
The heart is a muscular organ that contracts and relaxes to pump blood throughout the body. It consists of specialized cardiac muscle tissue that allows it to generate its own electrical impulses, ensuring a regular and coordinated heartbeat. The heart's main function is to circulate oxygenated blood to the body's tissues and organs, while simultaneously removing waste products and carbon dioxide. Its muscular nature enables it to generate enough force to propel the blood through the blood vessels, ensuring proper oxygenation and nourishment of all body tissues.Rate this question:
- 4.
The heart normally pumps about _______ BPM with a range of ______ - _____ BPM.
Explanation
The heart normally pumps at a rate of 72 beats per minute (BPM) with a range of 60 to 100 BPM.Rate this question:
- 5.
What are the 3 layers of the heart? **** from the innermost to the outermost****
Explanation
The correct answer is Endocardium, Myocardium, Pericardium. The endocardium is the innermost layer of the heart, consisting of a thin layer of endothelial cells. The myocardium is the middle layer, made up of cardiac muscle tissue responsible for the contraction of the heart. The pericardium is the outermost layer, a fibrous sac that surrounds and protects the heart.Rate this question:
- 6.
The Endocardium is a thin layer of ____________.
Explanation
The endocardium is a thin layer that lines the interior of the heart chambers and covers the heart valves. It is composed of smooth epithelial tissue, which is a type of tissue that is made up of closely packed cells with a smooth surface. This type of tissue is found in areas of the body where a smooth and slippery surface is needed, such as the lining of blood vessels and organs like the heart. The smooth epithelial tissue of the endocardium helps to reduce friction and facilitate the smooth flow of blood through the heart.Rate this question:
- 7.
What layer of the heart lines the inner surface of the heart chambers and valves?
Explanation
The endocardium is the layer of the heart that lines the inner surface of the heart chambers and valves. It is composed of endothelial cells and connective tissue. The endocardium helps to prevent blood clotting and provides a smooth surface for blood to flow through the heart. It also plays a role in the contraction and relaxation of the heart muscle.Rate this question:
- 8.
What layer if the heart is responsible for pumping blood throughout the vessels?
Explanation
The myocardium is the middle layer of the heart and is responsible for pumping blood throughout the vessels. It is composed of cardiac muscle tissue that contracts and relaxes to create the pumping action of the heart. The myocardium is thick and strong, allowing it to generate enough force to propel blood out of the heart and into the circulatory system. It is essential for maintaining blood circulation and delivering oxygen and nutrients to the body's tissues.Rate this question:
- 9.
The Myocardium is the thickest layer of the heart and is the muscular wall of the heart.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The myocardium is indeed the thickest layer of the heart and it consists of cardiac muscle tissue. This layer is responsible for the contraction and relaxation of the heart, allowing it to pump blood throughout the body. The myocardium is essential for maintaining the heart's function and plays a crucial role in the overall cardiovascular system.Rate this question:
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- 10.
The Myocardium is made up of specialized cells called?
Correct Answer
Cardiac Muscle CellsExplanation
The myocardium is the middle layer of the heart and is responsible for the heart's contractions. It is composed of specialized cells known as cardiac muscle cells. These cells have unique characteristics that allow them to generate and conduct electrical impulses, enabling the coordinated contraction of the heart muscle. The contraction and relaxation of cardiac muscle cells are what pump blood throughout the body, making them crucial for the proper functioning of the heart.Rate this question:
- 11.
Are the Cardiac Muscle Cells Voluntary or Involuntary?
- A.
Voluntary
- B.
Involuntary
- C.
None of the above
- D.
Both A and C
Correct Answer
B. InvoluntaryExplanation
Cardiac muscle cells are involuntary. Unlike skeletal muscle cells, which are under voluntary control, cardiac muscle cells are controlled by the autonomic nervous system and the cardiac conduction system. This means that the contraction and relaxation of the cardiac muscle cells occur automatically and are not under conscious control. Therefore, the correct answer is "Involuntary".Rate this question:
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- 12.
The special partitions between the cells in the Myocardium are called?
Correct Answer
Intercalated DisksExplanation
Intercalated disks are the specialized partitions between the cells in the myocardium. These structures play a crucial role in connecting individual cardiac muscle cells, allowing them to work together as a synchronized unit. Intercalated disks contain gap junctions, which facilitate the rapid conduction of electrical impulses between cells, ensuring efficient coordination of heart contractions. Additionally, intercalated disks also contain desmosomes, which provide mechanical strength and stability to the myocardium, enabling it to withstand the constant contraction and relaxation cycles of the heart.Rate this question:
- 13.
Intercalated Disks are modified cell membranes that allow for the rapid transfer of electrical impulses between the cells.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Intercalated disks are specialized structures found in cardiac muscle cells. These disks contain gap junctions, which are channels that allow for the rapid transfer of electrical impulses between adjacent cells. This allows for synchronized contraction of the heart muscle, ensuring efficient pumping of blood. Therefore, the statement that intercalated disks are modified cell membranes that allow for the rapid transfer of electrical impulses between cells is true.Rate this question:
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- 14.
Another feature of the cardiac muscle is the branching of the ___________
Correct Answer
Muscle FibersExplanation
The correct answer is "Muscle Fibers" because the question is asking for the feature of the cardiac muscle that branches. The branching of muscle fibers is a unique characteristic of cardiac muscle, allowing for a more efficient contraction and coordination of the heart's pumping action. This branching pattern enables the cardiac muscle to spread electrical impulses rapidly and uniformly throughout the heart, ensuring synchronized contractions and efficient blood flow.Rate this question:
- 15.
The branching of the muscle fibers is interwoven so that the stimulation that causes the contraction of _____ fiber results in the contraction of the _______ group.
Correct Answer
one, whole
one whole
1, whole
1 wholeExplanation
The branching of muscle fibers allows for the stimulation of one fiber to result in the contraction of a whole group. This means that when one fiber is stimulated, it triggers the contraction of all the fibers within that particular group. Therefore, both "one" and "whole" accurately describe the relationship between the stimulation of a single fiber and the contraction of the entire group. The options "one whole" and "1 whole" are also correct ways to express this relationship.Rate this question:
- 16.
The outer layer of the Pericardium is called the?
Correct Answer
Parietal PericardiumExplanation
The outer layer of the pericardium is called the parietal pericardium. The pericardium is a double-layered sac that surrounds the heart and helps protect it. The parietal pericardium is the outer layer of this sac, and it is attached to the fibrous pericardium. This layer provides support and helps to anchor the heart in place.Rate this question:
- 17.
The inner layer of the Pericardium is called the ________ Pericardium or the _________.
Correct Answer
Visceral, Epicardium
Visceral EpicardiumExplanation
The correct answer is "Visceral, Epicardium". The inner layer of the Pericardium is called the Visceral Pericardium or the Epicardium. The visceral pericardium is the innermost layer of the pericardium that directly covers the heart, while the epicardium is the outermost layer of the heart wall. Both terms refer to the same inner layer of the pericardium.Rate this question:
- 18.
The Pericardium is the__________ layer of the heart.
- A.
Innermost
- B.
Outermost
- C.
Muscle
Correct Answer
B. OutermostExplanation
It consists of 2 serous layers of fibrous tissue with a small space in betweenRate this question:
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- 19.
Between the Inner and Outer layer of the Pericardium is a normal amount of fluid called ___________
Correct Answer
Pericardial FluidExplanation
The pericardium is a double-layered sac that surrounds the heart. Between the inner and outer layers of the pericardium, there is a normal amount of fluid called pericardial fluid. This fluid acts as a lubricant, allowing the heart to move and beat smoothly within the pericardium. It also helps to reduce friction between the pericardial layers during heart contractions, ensuring proper heart function.Rate this question:
- 20.
The Pericardial fluid is located within the _____________. It eases friction when the heart contracts with each beat.
Correct Answer
Pericardial SacExplanation
The pericardial fluid is located within the pericardial sac. This fluid serves to reduce friction between the heart and the surrounding structures when the heart contracts with each beat. The pericardial sac acts as a protective membrane that encloses the heart, and the pericardial fluid lubricates the movement of the heart, allowing it to beat smoothly without causing damage or discomfort.Rate this question:
- 21.
The "right heart" consists of the right ________ and ________ .
Correct Answer
Atrium, Ventricle
Atrium, Right Ventricle
Atrium Right Ventricle
Ventricle, Atrium
Ventricle, Right AtriumExplanation
The "right heart" consists of the right atrium and right ventricle.Rate this question:
- 22.
The Right side of the heart pumps blood within the ___________ system
Correct Answer
PulmonaryExplanation
The right side of the heart pumps blood within the pulmonary system. This system is responsible for carrying deoxygenated blood from the heart to the lungs, where it is oxygenated and then returned to the heart. The right atrium receives deoxygenated blood from the body and pumps it into the right ventricle. The right ventricle then pumps this blood into the pulmonary artery, which carries it to the lungs for oxygenation. Once oxygenated, the blood returns to the heart through the pulmonary veins and enters the left side of the heart to be pumped out to the rest of the body.Rate this question:
- 23.
The "left Heart" consists of the left ________ and _________.
Correct Answer
Atrium, Ventricle
Atrium Ventricle
Atrium, Left Ventricle
Ventricle, Atrium
Ventricle, Left AtriumExplanation
The left heart consists of the left atrium and left ventricle.Rate this question:
- 24.
The left side of the heart pumps blood throughout the _____________ circulation or system.
Correct Answer
SystemicExplanation
The left side of the heart pumps blood throughout the systemic circulation or system. Systemic circulation refers to the flow of blood from the heart to all parts of the body, delivering oxygen and nutrients to the tissues and organs. The blood then returns to the heart through the veins to be pumped out again. This is in contrast to pulmonary circulation, which involves the flow of blood between the heart and the lungs.Rate this question:
- 25.
The pulmonary circuit pumps __________ blood to the lungs from the RV via the Pulmonary Artery and _____________ blood back to the heart from the lungs via the Pulmonary Veins to the LA.
Correct Answer
Deoxygenated, Oxygenated
Deoxygenated OxygenatedExplanation
The pulmonary circuit is responsible for pumping deoxygenated blood from the right ventricle to the lungs via the pulmonary artery. In the lungs, the blood gets oxygenated and is then returned to the heart through the pulmonary veins, specifically to the left atrium. Therefore, the correct answer is "Deoxygenated, Oxygenated." The repetition of "Deoxygenated Oxygenated" in the answer is likely a typo or error.Rate this question:
- 26.
The Systemic Circuit or System pumps ___________ blood to the tissues of the body from the LV via the Aorta and _______ Blood back to the heart from the tissues via the IVC and SVC to the RA.
Correct Answer
Oxygenated, Deoxygenated
Oxygenated DeoxygenatedExplanation
The systemic circuit is responsible for pumping oxygenated blood to the tissues of the body from the left ventricle via the aorta. It also pumps deoxygenated blood back to the heart from the tissues via the inferior vena cava and superior vena cava to the right atrium.Rate this question:
- 27.
The heart is made up of four chambers....... 2 ______ and 2 _______.
Correct Answer
Atria, Ventricle
Ventricle, Atria
Atrial, Ventricle
Ventricle, AtrialExplanation
The heart is made up of four chambers, two atria, and two ventricles. The atria are the upper chambers of the heart, while the ventricles are the lower chambers. The atria receive blood from the body and the lungs, and then pass it on to the ventricles. The ventricles, in turn, pump the blood out of the heart to the rest of the body. This arrangement allows for efficient circulation of oxygenated and deoxygenated blood throughout the body.Rate this question:
- 28.
The Atria receives blood from the _______ entering the _______.
Correct Answer
Veins, Heart
Veins HeartExplanation
The correct answer is "Veins, Heart". The atria are the upper chambers of the heart that receive blood from the veins. The veins carry deoxygenated blood back to the heart, where it enters the atria. Therefore, the blood is received from the veins entering the heart.Rate this question:
- 29.
The Ventricles pump blood to the _________ leaving the _______
Correct Answer
Arteries, Heart
Arteries HeartExplanation
The ventricles of the heart pump blood to the arteries, which then carry the blood away from the heart to the rest of the body. This is a vital function of the circulatory system, as it ensures that oxygenated blood is delivered to all the organs and tissues in the body. The heart acts as a powerful pump, pushing the blood out into the arteries with each contraction.Rate this question:
- 30.
The Right Atrium is a thin walled chamber that receives Deoxygenated blood from the tissue of the body VIA the ______ and ______.
Correct Answer
SVC, IVC
Superior Vena Cava, Inferior Vena Cava
SVC IVC
Superior Vena Cava Inferior Vena CavaExplanation
The right atrium is a thin-walled chamber that receives deoxygenated blood from the tissue of the body via the superior vena cava (SVC) and the inferior vena cava (IVC). The SVC brings deoxygenated blood from the upper body, including the head, neck, and upper limbs, while the IVC brings deoxygenated blood from the lower body, including the abdomen, pelvis, and lower limbs. Together, the SVC and IVC are the main veins that deliver deoxygenated blood to the right atrium.Rate this question:
- 31.
In the Right Atrium the IVC returns blood from the
- A.
Heart, to the Head, Chest, and Upper Extremities
- B.
Trunk and Lower Extremities
Correct Answer
B. Trunk and Lower ExtremitiesExplanation
The correct answer is "Trunk and Lower Extremities". The inferior vena cava (IVC) is a large vein that returns deoxygenated blood from the lower body to the right atrium of the heart. It collects blood from the trunk, which includes the abdomen and pelvis, as well as the lower extremities, which refer to the legs and feet. Therefore, the IVC returns blood from the trunk and lower extremities back to the right atrium of the heart.Rate this question:
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- 32.
In the Right Atrium the SVC returns blood to the
- A.
Heart from the head, chest, and upper extremities
- B.
Trunk and lower extremities
Correct Answer
A. Heart from the head, chest, and upper extremitiesExplanation
The superior vena cava (SVC) is a large vein that carries deoxygenated blood from the head, chest, and upper extremities back to the heart. It enters the right atrium of the heart, where the blood is then pumped into the right ventricle and eventually sent to the lungs for oxygenation. The SVC does not return blood from the trunk and lower extremities, as that is the role of the inferior vena cava (IVC).Rate this question:
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- 33.
CHAMBERS: In the Right Ventricle ...........from the RIGHT ATRIUM the blood enters through the __________ valve to the right ventricle
Correct Answer
TricuspidExplanation
The correct answer is tricuspid. In the right ventricle, blood flows from the right atrium through the tricuspid valve to enter the right ventricle. The tricuspid valve is located between the right atrium and the right ventricle and consists of three cusps or flaps. It prevents the backflow of blood from the right ventricle to the right atrium during ventricular contraction, ensuring that blood flows in the correct direction through the heart.Rate this question:
- 34.
CHAMBERS: The RV pumps oxygenated blood received from the RA to the lungs via the pulmonary trunk which further branches in the right and left pulmonary arteries
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The RV pumps DEOXYGENATED blood not OXYGENATED :)Rate this question:
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- 35.
CHAMBERS: The Left Atrium receives __________ rich blood from the lungs via the ______________ veins.
Correct Answer
Oxygen, Pulmonary
Oxygen PulmonaryExplanation
The left atrium receives oxygen-rich blood from the lungs via the pulmonary veins.Rate this question:
- 36.
CHAMBERS: In the Left Ventricle........ from the Left atrium, the blood enters through the ____________ valve to the LV.
Correct Answer
Mitral
BicuspidExplanation
The correct answer is Mitral, Bicuspid. The left ventricle receives blood from the left atrium through the mitral valve, which is also known as the bicuspid valve. The mitral valve consists of two flaps or cusps, hence the term bicuspid. It allows the blood to flow from the left atrium to the left ventricle while preventing backflow.Rate this question:
- 37.
CHAMBERS: The LV pumps the Oxygenated blood received from the _________ to the tissues of the body VIA the ___________.
Correct Answer
LA, Aorta
Left Atrium, Aorta
LA Aorta
Left Atrium AortaExplanation
The left ventricle (LV) pumps oxygenated blood received from the left atrium (LA) to the tissues of the body via the aorta.Rate this question:
- 38.
CHAMBERS: The LV forms a point at the lower aspect of the heart named the___________
Correct Answer
ApexExplanation
The LV (left ventricle) forms a point at the lower aspect of the heart called the apex. The apex is the bottom tip of the heart and is formed by the pointed shape of the left ventricle. This is where the heartbeat can be felt most strongly and where the heartbeat sounds are loudest when listening to the chest with a stethoscope. The apex is an important landmark in cardiac anatomy and is commonly used in medical examinations and procedures involving the heart.Rate this question:
- 39.
VALVES:The Heart valves flow in one direction to prevent __________
Correct Answer
Flow Reversal
Back FlowExplanation
The heart valves flow in one direction to prevent flow reversal and backflow. This is important in maintaining the proper circulation of blood in the body. If the valves did not prevent flow reversal, blood could flow back into the chambers of the heart instead of being pumped forward, leading to inefficient circulation. Similarly, if the valves did not prevent backflow, blood could flow back into the previous chamber instead of moving forward, again disrupting the proper flow of blood.Rate this question:
- 40.
There are 2 sets of valves in the heart called _____________ and ____________ Valves.
Correct Answer
AV, Semilunar
Atrioventricular, Semilunar
Semilunar, AV
Semilunar, Atrioventricular - 41.
The AV (Atrioventricular Valves) are located between the ______ and _______ and they are the (From Right to Left) ___________ valve and ________ valve.
Correct Answer
Atria, Ventricles, Tricuspid, Mitral
Atria, Ventricles, Tricuspid, Bicuspid
Atria Ventricles Tricuspid Mitral
Atria Ventricles Tricuspid Bicuspid VExplanation
The AV (Atrioventricular Valves) are located between the Atria and Ventricles. The valve on the right side is called the Tricuspid valve, and the valve on the left side is called the Mitral valve.Rate this question:
- 42.
The Mitral Valve is located between the ______ and ______
Correct Answer
LA, LV
Left Atrium, Left Ventricle
LA LV
Left Atrium left VentricleExplanation
The Mitral Valve is located between the Left Atrium (LA) and the Left Ventricle (LV).Rate this question:
- 43.
The Mitral Valve prevents backflow of blood into the _______ when the ______ is contracting.
Correct Answer
LA, LV
Left Atrium, Left Ventricle
LA LV
Left Atrium left VentricleExplanation
The mitral valve prevents backflow of blood into the left atrium when the left ventricle is contracting.Rate this question:
- 44.
The Tricuspid Valve is located between the ____ and _____.
Correct Answer
RA, RV
RA RV
Right Atrium Right Ventricle
Right Atrium, Right VentricleExplanation
The Tricuspid Valve is located between the Right Atrium (RA) and Right Ventricle (RV). It is also referred to as the valve between the Right Atrium and Right Ventricle.Rate this question:
- 45.
The Tricuspid Valve prevents backflow of blood back into the RA when the RV is contracting.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The tricuspid valve is located between the right atrium (RA) and the right ventricle (RV) of the heart. Its main function is to prevent the backflow of blood from the RV back into the RA when the RV contracts. This is important because it ensures that blood flows in the correct direction, from the RA to the RV and then to the lungs for oxygenation. Therefore, the statement is true.Rate this question:
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- 46.
What are the Fibrous threads that attach the papillary muscles to the Mitral and Tricuspid Valve called?
Correct Answer
Chordae TendineaeExplanation
The fibrous threads that attach the papillary muscles to the Mitral and Tricuspid Valve are called Chordae Tendineae. These structures play a crucial role in the functioning of the heart valves. The Chordae Tendineae prevent the valves from inverting or prolapsing during ventricular contraction by anchoring them to the papillary muscles. This ensures that the blood flows in the correct direction and prevents regurgitation of blood back into the atria.Rate this question:
- 47.
The Chordae Tendineae stabilizes the valves so that they don't evert back into the atria allowing back flow of blood when the ventricles contract.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The Chordae Tendineae are fibrous cords that attach the valves of the heart to the papillary muscles in the ventricles. Their main function is to prevent the valves from inverting or "everting" into the atria when the ventricles contract. This helps maintain the proper direction of blood flow, preventing any backflow of blood into the atria. Therefore, the statement is true.Rate this question:
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- 48.
What are the muscles on the walls of the heart that contract to open and close the valves?
Correct Answer
Papillary Muscles
PapillaryExplanation
The correct answer is Papillary Muscles. These muscles are located on the walls of the heart and are responsible for contracting to open and close the valves. They are specifically connected to the atrioventricular valves (mitral and tricuspid valves) by chordae tendineae, which help to control the movement of the valves. The contraction of the papillary muscles ensures that the valves open and close properly, allowing blood to flow in the correct direction through the heart.Rate this question:
- 49.
What TYPE of valves are located between the ventricles and the large arteries that carry blood away from the heart?
Correct Answer
Semilunar Valves
SemilunarExplanation
The correct answer is Semilunar Valves. These valves are located between the ventricles and the large arteries that carry blood away from the heart. They are called semilunar valves because of their half-moon shape. These valves prevent the backflow of blood into the ventricles when the heart relaxes and ensure that blood flows in one direction, from the ventricles to the arteries.Rate this question:
- 50.
The Pulmonic Valve is located between the ________ and ________
Correct Answer
RV, PA
Right Ventricle, Pulmonary Artery
RV PA
Right Ventricle Pulmonary ArteryExplanation
The Pulmonic Valve is located between the Right Ventricle (RV) and the Pulmonary Artery (PA).Rate this question:
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Mar 22, 2023Quiz Edited by
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Aug 21, 2010Quiz Created by
KFeyler
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