A And P Unit 5 And 6
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Skeletal and Muscular Systems
Questions and Answers
- 1.
One function of the skeletal system is to provide __________________ to the whole body.
Explanation
It provides a framework for soft tissues and organs.Rate this question:
- 2.
There are 3 general shapes of bones.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
There are 4 general shapes of bones. Long, short, flat and irregular.Rate this question:
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- 3.
Bones store the following:
- A.
Calcium
- B.
Fats
- C.
Marrow
- D.
Carbohydrates
Correct Answer(s)
A. Calcium
C. MarrowExplanation
Bones store calcium, which is essential for maintaining strong and healthy bones. Calcium is necessary for various bodily functions, including muscle contraction, nerve signaling, and blood clotting. Marrow, found inside the bones, is responsible for producing red and white blood cells, as well as platelets. It is a crucial component of the immune system and plays a role in maintaining overall health. Therefore, the correct answer is calcium and marrow as they are both important components stored in bones.Rate this question:
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- 4.
Bones provide ________________ that direct the forces created by muscles so that movement is allowed.
Correct Answer(s)
leverageExplanation
Bones provide leverage that directs the forces created by muscles so that movement is allowed. Leverage refers to the ability of bones to act as levers, allowing muscles to exert force and produce movement around joints. This is achieved through the arrangement and attachment of muscles and bones, creating a system where muscles pull on bones to create movement. Leverage is essential for efficient and coordinated movement in the human body.Rate this question:
- 5.
There are a total of 306 bones in the adult human body.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement is false because there are actually 206 bones in the adult human body, not 306.Rate this question:
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- 6.
The function of joint is to provide movement only. True or False?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Joints provide stability and movement when required.Rate this question:
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- 7.
A typical synovial joint contains the following:
- A.
Ligament
- B.
Meniscus
- C.
Protein
- D.
Fat
- E.
Bursa
- F.
Synovial fluid
- G.
Capsule
- H.
Muscle
Correct Answer(s)
A. Ligament
B. Meniscus
D. Fat
E. Bursa
F. Synovial fluid
G. CapsuleExplanation
A typical synovial joint contains ligaments, which are tough bands of connective tissue that hold the bones together and provide stability. The meniscus is a cartilage structure that acts as a shock absorber and helps to distribute forces within the joint. Fat pads are present in some synovial joints and provide cushioning. Bursae are small fluid-filled sacs that reduce friction between structures such as tendons and bones. Synovial fluid is a lubricating fluid that helps to reduce friction and nourish the joint. The joint capsule is a fibrous structure that surrounds the joint and helps to hold the bones together. Muscles surround the joint and provide movement and stability.Rate this question:
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- 8.
The hip joint is a ball and socket joint.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The hip joint is indeed a ball and socket joint. This means that the rounded head of the femur (thigh bone) fits into the cup-shaped socket of the pelvis, allowing for a wide range of motion in multiple directions. This type of joint structure provides stability and support to the hip, allowing for movements such as walking, running, and jumping.Rate this question:
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- 9.
The wrist joint is a hinge joint.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
It is an ellipsoid joint.Rate this question:
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- 10.
The elbow is a hinge joint.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement "The elbow is a hinge joint" is true. A hinge joint is a type of synovial joint that allows movement in only one plane, similar to a door hinge. The elbow joint specifically consists of the humerus bone in the upper arm and the ulna and radius bones in the forearm. It allows flexion and extension movements, resembling the opening and closing of a hinge. Therefore, the statement is correct.Rate this question:
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- 11.
The atlas is a saddle joint.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
It is a pivot joint.Rate this question:
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- 12.
The shoulder joint is one of the most mobile joint in the human body.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because the shoulder joint is indeed one of the most mobile joints in the human body. It allows for a wide range of movements, including flexion, extension, abduction, adduction, rotation, and circumduction. This mobility is due to the unique structure of the shoulder joint, which is formed by the articulation of the humerus (upper arm bone) with the scapula (shoulder blade) and clavicle (collarbone). The shallow socket of the shoulder joint allows for a greater range of motion compared to other joints, making it highly mobile.Rate this question:
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- 13.
The shoulder joint is able to perform the following movements:
- A.
Pronation
- B.
Flexion
- C.
Extension
- D.
Adduction
- E.
Dorsiflexion
- F.
Abduction
- G.
Rotation
Correct Answer(s)
B. Flexion
C. Extension
D. Adduction
F. Abduction
G. RotationExplanation
The shoulder joint is a highly mobile joint that allows for a wide range of movements. Flexion refers to bending the arm forward, while extension is the opposite movement of straightening the arm backward. Adduction is the movement of bringing the arm towards the body's midline, while abduction is the movement of taking the arm away from the body's midline. Rotation refers to the movement of the arm around its axis. These movements collectively allow for a wide range of motion and functionality in the shoulder joint.Rate this question:
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- 14.
The elbow joint is able to perform the following movements:
- A.
Flexion
- B.
Adduction
- C.
Extension
- D.
Pronation
- E.
Supination
Correct Answer(s)
A. Flexion
C. Extension
D. Pronation
E. SupinationExplanation
The elbow joint is a hinge joint that allows for flexion and extension movements. Flexion refers to bending the joint and bringing the forearm towards the upper arm, while extension refers to straightening the joint and moving the forearm away from the upper arm. In addition to these movements, the elbow joint also allows for pronation and supination. Pronation involves rotating the forearm so that the palm faces downwards, while supination involves rotating the forearm so that the palm faces upwards. These movements are important for various activities such as lifting, throwing, and gripping objects.Rate this question:
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- 15.
The wrist joint is able to perform the following:
- A.
Radial deviation
- B.
Rotation
- C.
Flexion
- D.
Medial deviation
- E.
Plantarflexion
- F.
Extension
Correct Answer(s)
A. Radial deviation
C. Flexion
D. Medial deviation
F. ExtensionExplanation
The wrist joint is capable of radial deviation, which refers to the movement of the hand towards the thumb side of the forearm. It can also perform flexion, which involves bending the hand towards the palm side of the forearm. Additionally, the wrist joint allows for medial deviation, which is the movement of the hand towards the little finger side of the forearm. Lastly, extension is another movement possible at the wrist joint, which involves straightening or bending the hand backward.Rate this question:
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- 16.
The hip joint is able to perform the following:
- A.
Rotation
- B.
Flexion
- C.
Supination
- D.
Extension
- E.
Abduction
- F.
Adduction
- G.
Circumduction
Correct Answer(s)
A. Rotation
B. Flexion
D. Extension
E. Abduction
F. Adduction
G. CircumductionExplanation
The hip joint is a ball-and-socket joint that allows for a wide range of movements. Rotation refers to the ability to rotate the leg inward or outward. Flexion is the movement of bringing the thigh towards the chest. Extension is the movement of straightening the leg. Abduction is the movement of moving the leg away from the midline of the body. Adduction is the movement of bringing the leg back towards the midline of the body. Circumduction is a combination of all these movements, creating a circular motion.Rate this question:
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- 17.
The knee joint is able to perform the following:
- A.
Rotation
- B.
Extension
- C.
Hyperextension
- D.
Adduction
- E.
Flexion
Correct Answer(s)
B. Extension
C. Hyperextension
E. FlexionExplanation
The knee joint is a hinge joint that allows for movement in a single plane. Extension refers to straightening or increasing the angle between the thigh and lower leg, while flexion refers to bending or decreasing the angle between the thigh and lower leg. Hyperextension is an excessive extension beyond the normal range of motion. Therefore, the knee joint is able to perform extension, hyperextension, and flexion movements.Rate this question:
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- 18.
The ankle joint is able to perform the following:
- A.
Pronation
- B.
Plantarflexion
- C.
Inversion
- D.
Circumduction
- E.
Dorsiflexion
- F.
Eversion
Correct Answer(s)
B. Plantarflexion
C. Inversion
E. Dorsiflexion
F. EversionExplanation
The ankle joint is a hinge joint that allows movement in multiple directions. Plantarflexion refers to the movement of pointing the foot downward, as in standing on tiptoe. Inversion is the movement of turning the sole of the foot inward, towards the opposite foot. Dorsiflexion is the movement of pulling the foot upward, as in flexing the ankle. Eversion is the movement of turning the sole of the foot outward, away from the opposite foot. These movements are all possible at the ankle joint, allowing for a wide range of motion in the foot and ankle.Rate this question:
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- 19.
Skeletal muscles contain the following structures:
- A.
Fats
- B.
Muscle fibers
- C.
Nerves
- D.
Proteins
- E.
Blood vessels
Correct Answer(s)
B. Muscle fibers
C. Nerves
D. Proteins
E. Blood vesselsExplanation
Skeletal muscles are composed of muscle fibers, which are responsible for the contraction and movement of the muscle. Nerves are also present in skeletal muscles to transmit signals from the brain to the muscle fibers, allowing for voluntary control of movement. Proteins, such as actin and myosin, are essential for muscle contraction. Lastly, blood vessels supply oxygen and nutrients to the muscle fibers, ensuring their proper function.Rate this question:
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- 20.
The perimysium contains collagen fibers.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
It contains blood vessels and nerves.Rate this question:
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- 21.
The epimysium contains collagen fibers.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The epimysium is the outermost layer of connective tissue that surrounds a muscle. It is composed of collagen fibers, which provide strength and support to the muscle. These collagen fibers help to protect the muscle from injury and provide a framework for muscle contraction. Therefore, the statement that the epimysium contains collagen fibers is true.Rate this question:
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- 22.
Our skeletal muscles help us to ________ our bones.
Correct Answer
moveExplanation
Our skeletal muscles are responsible for the movement of our bones. They contract and relax to generate force, which allows us to move different parts of our body. Without skeletal muscles, our bones would remain stationary, and we would not be able to perform any voluntary movements such as walking, running, or lifting objects. Therefore, the correct answer is "move."Rate this question:
- 23.
Our skeletal muscles help us to maintain our __________ such as sitting upright.
Correct Answer
postureExplanation
Skeletal muscles play a crucial role in maintaining our posture, such as sitting upright. These muscles provide support and stability to our body, allowing us to maintain a specific position or alignment against the force of gravity. By contracting and relaxing, skeletal muscles help to keep our body in an upright position, preventing slouching or collapsing. Therefore, the correct answer is "posture."Rate this question:
- 24.
Our skeletal muscles help us to support _________ of our organs and protect them from injury.
Correct Answer
weightExplanation
Our skeletal muscles help us to support the weight of our organs and protect them from injury. These muscles provide structural support and stability to our internal organs, especially those located in the abdominal and pelvic regions. They also help in maintaining proper posture and preventing strain or damage to the organs. Additionally, the muscles surrounding our organs act as a cushion, absorbing external forces and minimizing the risk of injury.Rate this question:
- 25.
Our skeletal muscles help to guard our entrances and exits. For example:
- A.
Pump our heart
- B.
Control urination and defecation
- C.
Digest our food
- D.
Swallowing
Correct Answer(s)
B. Control urination and defecation
D. SwallowingExplanation
The skeletal muscles play a crucial role in controlling urination and defecation as well as swallowing. These actions involve the contraction and relaxation of specific muscles to regulate the flow of urine and feces, and to facilitate the movement of food from the mouth to the stomach. The muscles involved in these processes are under voluntary control, allowing us to consciously initiate or inhibit these actions as needed.Rate this question:
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- 26.
Muscle contractions require __________ that produce heat to regulate our body temperature.
Correct Answer(s)
energyExplanation
Muscle contractions require energy in order to function properly. This energy is used to fuel the contraction process and enable the muscles to perform their intended actions. Additionally, during muscle contractions, heat is produced as a byproduct. This heat helps regulate our body temperature by keeping it within a certain range. Without the energy required for muscle contractions, our bodies would not be able to move and function effectively.Rate this question:
- 27.
Our lower limbs consist of the following muscles:
- A.
Biceps
- B.
Trapezius
- C.
Hamstrings
- D.
Deltoid
- E.
Quadriceps
- F.
Gluteal muscles
Correct Answer(s)
C. Hamstrings
E. Quadriceps
F. Gluteal musclesExplanation
The correct answer includes the muscles that are present in our lower limbs. The hamstrings, quadriceps, and gluteal muscles are all muscles that are located in the lower limbs. The hamstrings are a group of muscles located at the back of the thigh, the quadriceps are a group of muscles located at the front of the thigh, and the gluteal muscles are located in the buttocks. These muscles play a crucial role in various movements and functions of the lower limbs, such as walking, running, jumping, and maintaining balance.Rate this question:
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- 28.
Our upper limbs contain the following:
- A.
Trapezius
- B.
Quadriceps
- C.
Biceps
- D.
Deltoids
- E.
Rectus abdominis
- F.
Triceps
- G.
Pectoralis major
Correct Answer(s)
A. Trapezius
C. Biceps
D. Deltoids
F. Triceps
G. Pectoralis majorExplanation
The correct answer includes the muscles that are found in the upper limbs. The trapezius is a large muscle that covers the upper back and helps with shoulder movement. The biceps are located in the front of the upper arm and are responsible for flexing the elbow joint. The deltoids are the muscles that form the rounded shape of the shoulders and are involved in various arm movements. The triceps are located at the back of the upper arm and are responsible for extending the elbow joint. The pectoralis major is a large chest muscle that helps with movements of the shoulder and upper arm.Rate this question:
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- 29.
Our trunk/ torso has the following muscles:
- A.
Diaphragm
- B.
Cardiac muscles
- C.
External and internal oblique
- D.
Pelvic muscles
- E.
Rectus abdominis
Correct Answer(s)
A. DiapHragm
C. External and internal oblique
E. Rectus abdominisExplanation
The correct answer includes the diaphragm, external and internal oblique muscles, and the rectus abdominis. These muscles are all located in the trunk or torso area of the body. The diaphragm is a large muscle that separates the chest and abdominal cavities and plays a key role in breathing. The external and internal oblique muscles are located on the sides of the abdomen and help with twisting and bending movements. The rectus abdominis is the "six-pack" muscle that runs vertically down the front of the abdomen and is responsible for flexing the trunk.Rate this question:
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May 27, 2024Quiz Edited by
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Mar 13, 2014Quiz Created by
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