Which statement is CORRECT?
a. Veins contain valves and arteries do not.
b. For an artery and vein of the same diameter, the vein would have a thicker wall.
c. Blood pressure is lower in arteries than in veins.
d. Both arteries and veins are under pressure.
e. Both B and D.
Veins contain valves and arteries do not.
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The hormone that controls milk production in mammals is
A) Estrogen. B) Oxytocin. C) Prolactin. D) Prostaglandin.
The systemic circulation
a. receives more blood than the pulmonary circulation does. b. receives blood from the left ventricle. c. is a high pressure system compared to the pulmonary circulation. d. receives blood from the left ventricle and is a high pressure system compared to the pulmonary circulation. e. all of these answers.
Deepening of the voice, broadening of the shoulders, and growth of facial and body hair are secondary sexual characteristics that occur in
Fill in the blank(s) with the appropriate word(s)
The acetabulum articulates with the ________
A) femur B) tibia C) humerus D) patella E) hip bone