1. The grapelike clusters of alveoli are called ___________.
a. alveolar ducts
b. alveolar membranes
c. alveolar capillaries
d. respiratory bronchioles
e. alveolar sacs
2. Contracting the diaphragm increases thoracic cavity__________ and decreases thoracic cavity ___________. This resultsin _________.
a. volume; pressure; inspiration
b. volume; pressure; expiration
c. pressure; volume; expiration
d. pressure; volume; inspiration
3. If your tidal volume is 500 mL and the conducting portion ofyour respiratory tract is 150 mL, how much air are you exchanginggases with from that breath?
a. Not enough information is given.
b. 500 mL
c. 350 mL
d. 650 mL
e. 150 mL
4. A drop in blood pressure stimulates the kidneys to secrete___________.
a. angiotensin II
b. antidiuretic hormone
c. angiotensinogen
d. renin
e. aldosterone
