Bronchodilation of the air passages involves the ____ of their smooth muscle and the ____ of their radius
a. decrease; decrease
b. decrease; increase
c. increase; decrease
d. increase; increase
e. None of the above
B
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The type of muscle that is found in blood vessel walls is __________ muscle
A. skeletal B. cardiac C. smooth
Epinephrine and norepinephrine that are released from the adrenal glands affect target tissue for a longer period of time than the same substances released from neurons at their peripheral receptors. Why?
A) The effectors are less sensitive to epinephrine and norepinephrine released by the adrenal glands. B) The hormones released from the adrenal glands bind to different receptors than those released from neurons. C) The adrenal gland releases larger amounts of the neurotransmitters than the neurons. D) There are no enzymes to break down epinephrine and norepinephrine in the blood and very little in peripheral tissues. E) The epinephrine and norepinephrine from the adrenal glands are released by sympathetic neurons, whereas parasympathetic neurons release these substances at the effector organs.
Which process prepares glutamic acid for use in energy production?
A. Protein synthesis B. Oxidative deamination C. Ketogenesis D. Transamination
Exocrine glands secrete hormones into the blood.
Answer the following statement true (T) or false (F)