Jersey College A&P Final Exam Verified A+
What is the primary role of the skeletal system in the human body?
The skeletal system provides structural support, protects internal organs, stores minerals, and houses
the bone marrow, where blood cells are produced. ✔️✔️
What is the difference between voluntary and involuntary muscle control?
Voluntary muscles, like skeletal muscles, are consciously controlled, while involuntary muscles, like
smooth and cardiac muscles, are controlled automatically. ✔️✔️
How do capillaries facilitate the exchange of gases and nutrients?
Capillaries have thin walls that allow oxygen, carbon dioxide, nutrients, and waste products to be
exchanged between the blood and surrounding tissues. ✔️✔️
What is the role of the large intestine in digestion?
The large intestine absorbs water and salts from the material that has not been digested, forming solid
waste for elimination. ✔️✔️
How does the process of exhalation occur?
Exhalation occurs when the diaphragm relaxes and moves upward, decreasing the thoracic cavity's
volume and pushing air out of the lungs. ✔️✔️
What is the function of the myelin sheath in nerve transmission?
The myelin sheath insulates nerve fibers and speeds up the transmission of electrical impulses along the
nerve cells. ✔️✔️
What is the function of the pituitary gland in the endocrine system?
The pituitary gland produces and releases hormones that regulate other endocrine glands and bodily
functions, including growth and reproduction. ✔️✔️
,What is the purpose of the cerebellum in the brain?
The cerebellum is responsible for coordinating voluntary movements, balance, and motor skills. ✔️✔️
What is the function of the epidermis in skin protection?
The epidermis acts as a barrier to protect the body from pathogens, chemicals, and physical injury, and
it also prevents water loss. ✔️✔️
How do red blood cells transport oxygen throughout the body?
Red blood cells contain hemoglobin, which binds to oxygen in the lungs and releases it in tissues that
need oxygen. ✔️✔️
What is the role of the autonomic nervous system?
The autonomic nervous system controls involuntary bodily functions like heart rate, digestion, and
respiratory rate. ✔️✔️
How do the kidneys help regulate blood pressure?
The kidneys regulate blood pressure by controlling the volume of blood and adjusting the amount of
sodium in the body. ✔️✔️
What is the difference between ligaments and tendons?
Ligaments connect bones to other bones, while tendons connect muscles to bones. ✔️✔️
What is the function of the lymphatic system?
The lymphatic system helps remove waste, supports immune function, and maintains fluid balance by
returning excess tissue fluid to the bloodstream. ✔️✔️
How does the body regulate temperature during exercise?
During exercise, the body regulates temperature by increasing blood flow to the skin, sweating to cool
down, and adjusting metabolic rate. ✔️✔️
,What is the role of insulin in the body?
Insulin is a hormone produced by the pancreas that helps regulate blood sugar levels by promoting the
uptake of glucose into cells. ✔️✔️
What is the role of the digestive system in nutrient absorption?
The digestive system breaks down food into smaller molecules, and the small intestine absorbs nutrients
into the bloodstream. ✔️✔️
How do the lungs facilitate gas exchange?
The lungs allow oxygen to diffuse from the air into the blood and carbon dioxide to diffuse from the
blood into the air for exhalation. ✔️✔️
What is the function of the hypothalamus in the brain?
The hypothalamus controls vital functions like temperature regulation, hunger, thirst, and the release of
hormones from the pituitary gland. ✔️✔️
How does the muscular system contribute to body movement?
The muscular system allows movement by contracting and relaxing muscles, which pull on bones and
generate movement at joints. ✔️✔️
What is the role of the digestive enzymes in the stomach?
Digestive enzymes in the stomach break down proteins into smaller molecules that can be absorbed by
the body. ✔️✔️
How does the body maintain a stable pH level?
The body maintains pH balance by using buffers, adjusting breathing to regulate carbon dioxide levels,
and through kidney function. ✔️✔️
What is the function of the adrenal glands?
, The adrenal glands produce hormones like adrenaline and cortisol that help the body respond to stress
and regulate metabolism. ✔️✔️
What are the main differences between the somatic and autonomic nervous systems?
The somatic nervous system controls voluntary movements, while the autonomic nervous system
controls involuntary functions such as heart rate and digestion. ✔️✔️
How does the skin contribute to immune defense?
The skin acts as a physical barrier, contains immune cells, and produces antimicrobial substances to
defend against pathogens. ✔️✔️
What is the function of the parathyroid glands?
The parathyroid glands produce parathyroid hormone, which regulates calcium levels in the blood and
bones. ✔️✔️
How do the lungs help with acid-base balance?
The lungs help regulate blood pH by removing carbon dioxide, which reduces the acidity of the blood.
✔️✔️
What is the role of the pancreas in digestion?
The pancreas produces digestive enzymes and bicarbonate, which aid in the digestion of food in the
small intestine. ✔️✔️
How does the body respond to a decrease in blood oxygen levels?
When blood oxygen levels drop, the body increases the rate of breathing to bring in more oxygen and
triggers the release of erythropoietin to stimulate red blood cell production. ✔️✔️
What is the role of the thyroid gland?
The thyroid gland produces hormones that regulate metabolism, growth, and development in the body.
✔️✔️
