The smallest of the air distribution tubes in the respiratory tract are the:
a. secondary bronchi
b. bronchioles
c. alveolar ducts
d. tracheae
c. alveolar ducts
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Indicate whether the statement is true or false
Regulation of peripheral resistance occurs most often in the
A. large arteries. B. medium-sized arteries. C. arterioles. D. capillaries. E. veins
True or False? The simplest and most common type of sensory nerve endings are free nerve endings.
Answer the following statement true (T) or false (F)
Hemorrhage with a large loss of blood causes ________.
A) a lowering of blood pressure due to change in cardiac output B) a rise in blood pressure due to change in cardiac output C) no change in blood pressure but a slower heart rate D) no change in blood pressure but a change in respiration