Of the four "normal" heart sounds, the initial "lubb" sound is heard when the
A. foramen ovale closes.
B. semilunar valves open.
C. AV valves open.
D. AV valves close.
E. semilunar valves close.
Answer: D
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The lateral muscles (external oblique, internal oblique, and transversus abdominis) are found in both the abdominal and pelvic cavities.
Answer the following statement true (T) or false (F)
You are giving a tap water enema to a patient. An adverse effect of the tap water enema is water intoxication. Explain.
What will be an ideal response?
Antidiuretic hormone (ADH) targets the __________.
A. kidneys B. adrenal gland C. anterior pituitary D. hypothalamus E. pancreas
Which of the following statements regarding control of respiration is correct?
A. The most important signal for regulating ventilation is the H+ concentration of arterial blood. B. At high altitude, a decrease in PCO2 of the blood stimulates an increase in ventilation. C. Increased concentrations of lactic acid stimulate ventilation primarily by acting on peripheral chemoreceptors. D. An increase in the HCO3- concentration in blood stimulates ventilation. E. A slight decrease in arterial PO2 is a stronger stimulus for increased ventilation than is a comparable decrease in arterial PCO2.