Which of the following stimulates spermatogenesis in the seminiferous tubules?
A. FSH
B. Inhibin
C. GnRH
D. LH
Answer: A
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Urine moves from the kidneys to the urinary bladder through the ureters
a. by active transport b. passively by the force of gravity c. by peristaltic contraction of the smooth muscle of the ureters d. when the bladder empties, creating a negative pressure that pulls urine to the bladder e. when nephron collecting ducts apply hydrostatic pressure to push the urine along
Which structure(s) is/are associated with hearing?
a. ampulla. b. cochlea. c. cupula. d. cristae. e. saccule.
A 55-year-old man who has alcoholic cirrhosis of the liver is brought to the emergency department because he has been vomiting blood for the past 2 hours. He has a 2-month history of abdominal distention, dilated veins over the anterior abdominal wall, and internal hemorrhoids. Which of the following veins is the most likely origin of the hematemesis?
A. Esophageal veins B. Inferiormesentericveins C. Paraumbilical veins D. Superior mesenteric vein E. Superior vena cava
An adult with their thymus removed would have a marked decline in B cell maturation and B cell effector responses.
Answer the following statement true (T) or false (F)