The minimum volume of air that remains in the lungs after a maximal expiration is termed the
a. tidal volume
b. functional residual capacity
c. residual volume
d. vital capacity
e. None of the above
C
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Identify the highlighted structure
Endocrine glands are those organs dedicated to making hormones. Some organs make hormones but have other important functions
An example of such a hormone-producing organ that is not considered a dedicated endocrine gland is the: A. adrenal gland B. thyroid gland C. liver D. pituitary gland E. parathyroid gland
Endogenous pyrogens released by macrophages causes the hypothalamus to elevate body temperature during times of infection
Indicate whether the statement is true or false
What is the nature of acetylcholine's inhibitory effect on heart rate?
A. Acetylcholine induces depolarization in the sinoatrial node. B. Acetylcholine causes closing of sodium channels in the sinoatrial node. C. Acetylcholine causes opening of fast calcium channels in contractile cells. D. Acetylcholine causes opening of potassium channels in the sinoatrial node, thereby hyperpolarizing it.