1.
The organs that make up the endocrine system are called ___.
Correct Answer
B. Glands
Explanation
The organs that make up the endocrine system are called glands. Glands are specialized organs that produce and release hormones into the bloodstream. These hormones then travel to target cells or organs, where they regulate various bodily functions and processes. Examples of glands in the endocrine system include the pituitary gland, thyroid gland, adrenal glands, and pancreas.
2.
The endocrine system:
Correct Answer
B. Releases hormones into the bloodstream.
Explanation
The endocrine system releases hormones into the bloodstream. Unlike the reproductive system, it is not limited to affecting only one system in the body. The endocrine system works in coordination with the nervous system rather than competing with it. It is primarily composed of glands that do not have ducts, allowing hormones to be released directly into the bloodstream for distribution throughout the body.
3.
Which physiological organ system includes the lungs, trachea, pharynx, and diaphragm?
Correct Answer
C. Respiratory
Explanation
The respiratory system includes the lungs, trachea, pharynx, and diaphragm. This system is responsible for the exchange of oxygen and carbon dioxide in the body. The lungs are the main organs involved in respiration, while the trachea and pharynx help in the passage of air. The diaphragm is a muscle that aids in the process of breathing. Therefore, the correct answer is respiratory.
4.
Which of the following is NOT a function of the respiratory system?
Correct Answer
D. Absorption and recirculation of lympH into the blood stream
Explanation
The respiratory system is responsible for the exchange of gases, specifically oxygen and carbon dioxide, between the body and the environment. Oxygen is inhaled and carbon dioxide is exhaled through the mouth and nose. In the alveoli of the lungs, oxygen diffuses into the blood while carbon dioxide diffuses out of the blood. However, absorption and recirculation of lymph into the bloodstream is not a function of the respiratory system. Lymph is a clear fluid that contains white blood cells and is responsible for removing waste and toxins from the body, but it is not directly related to the respiratory system.
5.
The function of the digestive system is to?
Correct Answer
D. All of the answer choices are correct
Explanation
The digestive system has multiple functions, including chemically breaking down food through the action of enzymes, mechanically breaking apart food through chewing and churning in the stomach, and absorbing nutrient materials from the digested food. Therefore, all of the answer choices are correct as they accurately describe different functions of the digestive system.
6.
The diagram above is showing the major structures of the ___ system.
Correct Answer
A. Digestive
Explanation
The diagram above is showing the major structures of the digestive system.
7.
Which of the following is NOT a part of the cardiovascular/circulatory system?
Correct Answer
B. Air passageway
Explanation
The cardiovascular/circulatory system is responsible for the circulation of blood throughout the body. It consists of the heart, blood vessels, and blood. The air passageway, on the other hand, is a part of the respiratory system, which is responsible for the exchange of gases (such as oxygen and carbon dioxide) between the body and the environment. Therefore, the air passageway is not a part of the cardiovascular/circulatory system.
8.
Which body system acts as a transportation system for gases, nutrients, and hormones?
Correct Answer
A. Cardiovascular/circulatory
Explanation
The cardiovascular/circulatory system acts as a transportation system for gases, nutrients, and hormones. This system consists of the heart, blood vessels, and blood, which work together to transport oxygen, carbon dioxide, nutrients, hormones, and other substances throughout the body. The heart pumps oxygenated blood to the body's tissues and organs, while the blood vessels carry the blood to and from different parts of the body. This system plays a crucial role in maintaining the body's overall functioning and homeostasis.
9.
The three types of muscles are?
Correct Answer
A. Skeletal, smooth, and cardiac.
Explanation
The correct answer is skeletal, smooth, and cardiac. These are the three types of muscles found in the human body. Skeletal muscles are attached to bones and are responsible for voluntary movements. Smooth muscles are found in the walls of organs and blood vessels, and they perform involuntary movements. Cardiac muscles are specific to the heart and are responsible for its contractions.
10.
Muscle tissue functions to move?
Correct Answer
D. All of the answer choices are correct
Explanation
Muscle tissue is responsible for movement in the body. It contracts and relaxes to move various substances such as blood, food in the digestive tract, and even bones. Therefore, all of the answer choices are correct as muscle tissue functions to move all of these substances.
11.
The main organs of the excretory/urinary system are the:
Correct Answer
A. Kidneys
Explanation
The kidneys are the main organs of the excretory/urinary system. They play a crucial role in filtering waste products, excess water, and toxins from the blood to produce urine. The urine is then transported to the bladder through the ureters for storage until it is eliminated from the body. The lungs are not part of the excretory/urinary system; their main function is to exchange gases. The intestines are responsible for digestion and absorption of nutrients, while the liver is involved in detoxification and metabolism of various substances.
12.
The function of the excretory/urinary system is to control homeostasis and?
Correct Answer
B. Remove wastes.
Explanation
The excretory/urinary system is responsible for removing waste products from the body. It filters out waste materials, such as toxins and excess water, from the bloodstream and eliminates them through urine. This helps maintain the balance of fluids, electrolytes, and pH levels in the body, thus contributing to overall homeostasis. The system does not break down nutrients, absorb nutrients, or prevent infection, as those functions are carried out by other systems in the body.
13.
Which of the following provides support for the body, attachment sites for muscles, and protection for internal organs?
Correct Answer
C. Skeleton
Explanation
The skeleton provides support for the body, attachment sites for muscles, and protection for internal organs. It is the framework that holds the body together and allows movement. The bones of the skeleton provide support and structure, while the joints allow for movement and flexibility. Additionally, the skeleton protects vital organs such as the brain, heart, and lungs.
14.
Which of the following is NOT a function of bones in the human skeletal system?
Correct Answer
B. Regulate body temperature
Explanation
Bones in the human skeletal system do not have the function of regulating body temperature. Instead, they primarily serve to provide structural support, protect internal organs, facilitate movement, and store minerals such as calcium and phosphorus. The regulation of body temperature is primarily controlled by the hypothalamus in the brain, the sweat glands, and blood vessels.
15.
Which of the following is NOT a function of skin?
Correct Answer
C. Contracts and relaxes muscles
Explanation
The skin is not directly responsible for contracting and relaxing muscles. This function is primarily controlled by the muscular system, which consists of muscles, tendons, and nerves. The skin mainly serves as a protective barrier for the body, helps regulate body temperature, removes body wastes through sweat, and helps prevent infection by acting as a physical barrier against pathogens.
16.
Which of the following is NOT part of the integumentary system?
Correct Answer
D. Cartilage
Explanation
Cartilage is not part of the integumentary system. The integumentary system consists of the skin, hair, and nails, which are all derived from the epidermis. Cartilage, on the other hand, is a type of connective tissue found in various parts of the body, such as the joints and the ears, but it is not considered part of the integumentary system. The integumentary system primarily functions to protect the body from external threats, regulate body temperature, and provide sensory information.
17.
Which of the following is NOT a structure in the nervous system?
Correct Answer
E. The heart
Explanation
The heart is not a structure in the nervous system. The nervous system is responsible for transmitting signals and coordinating the body's response to stimuli, while the heart is part of the circulatory system and is responsible for pumping blood throughout the body. Although the nervous system and circulatory system work together to maintain homeostasis, the heart itself is not directly involved in the functions of the nervous system.
18.
Which system coordinates the body’s response to changes in its internal and external environment?
Correct Answer
B. Nervous system
Explanation
The nervous system is responsible for coordinating the body's response to changes in its internal and external environment. It receives information from the senses, processes it, and sends signals to the appropriate parts of the body to initiate a response. This system includes the brain, spinal cord, and nerves throughout the body. The lymphatic system is responsible for immune function, the excretory system eliminates waste products from the body, and the reproductive system is involved in reproduction.
19.
Which body system collects the fluid that is lost by the blood and returns it to the circulatory system?
Correct Answer
B. LympHatic
Explanation
The lymphatic system is responsible for collecting the fluid that is lost by the blood and returning it to the circulatory system. This system consists of lymph vessels, lymph nodes, and lymphatic organs, such as the spleen and thymus. The lymphatic system plays a crucial role in maintaining fluid balance in the body and also helps in immune defense by filtering out harmful substances and producing lymphocytes.
20.
Which of the following is NOT a structure of the lymphatic system?
Correct Answer
C. Gall bladder
Explanation
The gall bladder is not a structure of the lymphatic system. The lymphatic system consists of various organs and tissues that work together to help the body fight off infections and diseases. The spleen, tonsils, and thymus are all part of the lymphatic system, but the gall bladder is not. The gall bladder is an organ involved in the storage and concentration of bile, which is produced by the liver and aids in digestion.
21.
Which of the following is NOT a function of the female reproductive system?
Correct Answer
C. To deliver sperm
Explanation
The female reproductive system is responsible for producing eggs (ova), preparing the body to carry an embryo, and releasing eggs into the Fallopian tubes for fertilization. However, delivering sperm is not a function of the female reproductive system. Sperm is delivered by the male reproductive system during sexual intercourse.
22.
Which human organ system is primarily responsible for passing genes on to the next generation?
Correct Answer
A. Reproductive
Explanation
The reproductive system is primarily responsible for passing genes on to the next generation. This system includes the organs involved in sexual reproduction, such as the ovaries, testes, uterus, and fallopian tubes. These organs produce and release eggs and sperm, which contain the genetic information necessary for reproduction. During sexual intercourse, sperm fertilizes the egg, resulting in the formation of a zygote that develops into a new individual with a unique combination of genetic traits inherited from both parents.