The diaphragm ________
A) originates and inserts on the ribs
B) is the primary muscle of respiration
C) elevates the ribs
D) depresses the ribs
B
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Inborn or intrinsic reflexes are ________
A) involuntary, yet may be modified by learned behavior B) always mediated by the brain C) autonomic only D) rapid, predictable, and can be learned responses
For a diagnosis of hypertension, a patient must have
A) a systolic pressure above 140 mm Hg. B) a diastolic pressure below 80 mm Hg. C) a diastolic pressure above 90 mm Hg. D) a systolic pressure above 120 mm Hg. E) a systolic pressure above 140 mm Hg or a diastolic pressure above 90 mm Hg.
Each of the following statements concerning oogenesis is true, except that
What will be an ideal response?
The human immunodeficiency virus (HIV) is able to cause widespread immunodeficiency because ________.
A. the HIV virus blocks the activation of the complement system B. the HIV virus interferes with activation of both B cells and T cells C. the HIV virus infiltrates the cells responsible for innate immunity, the first line of defense against pathogens D. through infection of T cells, HIV prevents the product of antibodies against the virus