The occipital bone has a large opening called the ____ through which the spinal cord connects to the brain.?
a. mental foramen
b. occipital condyle
c. foramen magnum
d. temporal condyle
Ans: c. foramen magnum
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Total peripheral resistance in the circulatory system is primarily determined by the degree of vasoconstriction in the veins.
Answer the following statement true (T) or false (F)
Duodenal gland secretion prevents
A. peristalsis. B. irritation of the duodenal mucosa by acidic chyme and digestive enzymes. C. the release of insulin. D. digestive enzyme release. E. release of bile from the liver.
Why is the optic disc sometimes called the blind spot of the eye?
A. There are no blood vessels there. B. There are no nerve fibers there. C. There are rods there, but no cones, so color vision is not possible in that area. D. There are no rods and cones there. E. There are cones there, but no rods, so black and white vision is not possible in that area.
The Goldman equation can be used to determine the resting membrane potential. It accounts for all the following factors EXCEPT
A) Concentration of an ion outside the cell. B) Concentration of an ion inside the cell. C) Concentration of all ion channels in the membrane. D) Permeability of the membrane for the ions.