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What is the function of the myelin sheath in neurons?
The myelin sheath insulates nerve fibers, speeding up the transmission of electrical impulses along the
neuron. ✔️✔️
What is the role of the glial cells in the nervous system?
Glial cells support and protect neurons by providing nutrients, removing waste, and assisting in signal
transmission. ✔️✔️
How does the body regulate body temperature?
The body maintains temperature by sweating to cool down or shivering to generate heat, with the
hypothalamus acting as the body’s thermostat. ✔️✔️
What is the function of the anterior pituitary in hormone regulation?
The anterior pituitary produces and secretes hormones that regulate growth, metabolism, and
reproductive functions, such as growth hormone and thyroid-stimulating hormone. ✔️✔️
What is the function of the ribs in respiration?
The ribs protect vital organs and assist in the expansion and contraction of the lungs during breathing.
✔️✔️
What is the role of the lymphocytes in the immune system?
Lymphocytes, a type of white blood cell, recognize and fight infections by producing antibodies or
directly attacking infected cells. ✔️✔️
What is the role of the alveoli in the lungs?
, Alveoli are tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the blood and
carbon dioxide to be removed. ✔️✔️
What is the function of the skeletal system?
The skeletal system provides structural support, protects vital organs, facilitates movement, and
produces blood cells in the bone marrow. ✔️✔️
What is the role of the medulla in the autonomic nervous system?
The medulla controls vital autonomic functions such as heart rate, blood pressure, and respiration rate.
✔️✔️
How does the body adjust to low blood pressure?
The body increases heart rate, constricts blood vessels, and releases hormones like aldosterone to retain
sodium and increase blood volume. ✔️✔️
What is the function of the renal corpuscle in the kidneys?
The renal corpuscle filters blood to remove waste and excess substances, beginning the process of urine
formation. ✔️✔️
What is the role of the reticular activating system (RAS) in the brain?
The RAS regulates wakefulness and alertness, controlling the sleep-wake cycle and responding to
stimuli. ✔️✔️
How do capillaries facilitate gas exchange?
Capillaries are small blood vessels with thin walls that allow oxygen and nutrients to pass from the blood
into tissues and waste products to pass back into the blood. ✔️✔️
What is the role of the synovial fluid in joints?
Synovial fluid lubricates the joints, reducing friction and providing nutrients to the cartilage. ✔️✔️
What is the function of the large intestine in digestion?