The intrapulmonary pressure
a. is the pressure within the air sacs of the lung
b. always equilibrates with atmospheric pressure
c. is always less than intrapleural pressure
d. is both a and b
e. is both a and c
E
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The inferior point of the heart that rests against the diaphragm is called the __________.
Fill in the blank(s) with the appropriate word(s).
The calcium release channel in the smooth muscle sarcoplasmic reticulum that is opened by increases in phospholipase C activity is the
A) Ca2+-ATPase. B) inositol trisphosphate (IP3) receptor channel. C) dihydropyridine (DHP) receptor. D) voltage -gated Ca2+ channel. E) ryanodine receptor.
The eye is located in the ________ body cavity
A) cranial B) synovial C) thoracic D) orbital
The cheek area is known as the __________ region.
Fill in the blank(s) with the appropriate word(s).