The sympathetic trunk ganglia are primarily composed of
A. somas of preganglionic neurons.
B. somas of ganglionic neurons.
C. axons of preganglionic neurons.
D. axons of ganglionic neurons.
Answer: B
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Which of the following is NOT a disorder of water balance?
A) hypotonic hydration, in which sodium content is normal but water content is high B) excessive hydration due to excess atrial natriuretic peptide (ANP) secretion C) edema or tissue swelling, which is usually due to an increased capillary hydrostatic pressure D) excess water in interstitial spaces due to a low level of plasma proteins
The LH surge during ovulation does not
a. initiate local prostaglandin production. b. stimulate the production of the Graafian follicle. c. end estrogen production by the follicular cell. d. reinitiate meiosis. e. trigger differentiation of follicular cells to luteal cells.
Most O2 is carried in the blood ________; but most CO2 is ________.
A. dissolved in plasma; associated with salt or acid B. bound to hemoglobin; associated with bicarbonate ions in the plasma C. bound to plasma proteins; carried as CO2 D. combined with albumin; associated with carbonic acid E. bound to hemoglobin; bound to albumin
Blood pressure is the
A. product of the stroke volume times heart rate. B. viscosity of the blood and resistance to blood flow. C. number of layers of blood in laminar flow models. D. measure of the volume of the blood. E. measure of force blood exerts against blood vessel walls.