For inspiration of air, which of the following happens first?
A) diaphragm descends and rib cage rises
B) intrapulmonary pressure drops
C) air (gases) flows into lungs
D) thoracic cavity volume decreases
A
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Which of the following is true of arteries compared to other vessels?
A) Blood pressure and velocity are lowest. B) Blood pressure and velocity are highest. C) Blood pressure and cross-sectional area are lowest. D) Blood pressure and cross-sectional area are highest. E) Velocity and cross-sectional area are highest.
The small paired glands at the base of the penis that produce a lubricating secretion are the ____________.
A) prostate glands. B) preputial glands. C) bulbourethral glands. D) seminal vesicles. E) Bartholin's glands.
The oviducts totally enclose the ovaries.
a. true b. false
The volume of blood pumped by each ventricle in one heartbeat is known as:
A) end-diastolic volume (EDV). B) heart rate (HR). C) cardiac output (CO). D) stroke volume (SV).