The structure in the central canal of a liver lobule is a branch of the:
a. hepatic portal vein
b. hepatic vein
c. hepatic proper artery
d. hepatic duct
Answer: b. hepatic vein
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Which of the following structures is used to control the flow of blood through a capillary bed?
a) thoroughfare channels b) precapillary sphincters c) postcapillary sphincters d) venules e) valves in veins
A typical human cell is about ____micrometers in diameter
a. 1 to 2 b. 10 to 20 c. 80 to 100 d. 150 to 200 e. 200 to 300
CRH is important because
a. it induces fetal cortisol production. b. it results in fetal lung development. c. it causes uterine contractions. d. both (a) and (b) above. e. both (a) and (c) above.
Ca2+ release channels in the sarcoplasmic reticulum of the heart are opened by an increase in Ca2+ in the cytoplasm. This is referred to as ________.
A. calcium-induced repolarization B. calcium-stimulated calcium release C. calcium-induced fibrillation D. calcium-stimulated depolarization