What chemical messengers initiate and continue uterine contractions until birth of the baby?
A. Prostaglandins
B. Oxytocin
C. Estrogen
D. Both prostaglandins and oxytocin
Answer: D
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Which group of antiulcer medications blocks receptors on parietal cells in the stomach, thereby reducing gastric acid secretion?
a. mucosal protectives b. H2-receptor antagonists c. systemic antacids d. nonsystemic antacids
A molecule that moves electrons from the citric acid cycle to the electron transport chain is ________.
A. ADP B. H2O C. pyruvate D. NADH E. CO2
What structure takes oxygenated blood from the heart to the rest of the body?
A. Vena cavae B. Aorta C. Pulmonary artery D. Pulmonary vein
Which stimulates vasopressin secretion?
A. Ingestion of alcohol B. Increased pressure in afferent arterioles C. Increased plasma osmolarity D. Decreased aldosterone secretion E. Increased plasma volume