The semilunar valves are forced open when ________
A) ventricular diastole begins
B) ventricular pressure exceeds the pressure in the large arteries leaving the heart
C) atrial contraction occurs
D) ventricular systole begins
Answer: B
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The ________ abdominopelvic region is sandwiched between the right and left hypochondriac regions.
A) umbilical B) epigastric C) hypogastric D) lumbar E) hypochondriac
Lymphocytes can be found in:
a. lymph nodes b. the thymus c. the liver d. all of the above
The major means of decreasing heat loss in response to a cold environmental temperature is
a. skin vasoconstriction b. skin vasodilation c. increasing the temperature gradient between the skin and environment d. formation of "goose bumps" e. both a and d
When an anesthetic blocks the function of the anterior rami of the cervical spinal nerves, which areas of the body will be affected?
A) skin and muscles of the lateral surface of the forearm B) skin and muscles of the arm and forearm C) skin and muscles of the back of the neck and of the shoulders D) skin over anteromedial thigh and portions of external genitalia E) muscles of the face