Hormone secretion from the anterior pituitary gland is controlled by
a. hormones from the hypothalamus
b. by neural innervation of anterior pituitary cells
c. negative-feedback action of target-tissue hormones
d. both a and c
e. none of the above
D
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The common pathway of coagulation begins with the
A) activation of a clotting factor that converts fibrinogen to fibrin. B) sticking of platelets to damaged tissue. C) activation of a proenzyme exposed to collagen. D) release of tissue factor by a damaged endothelium. E) activating of a clotting factor that converts prothrombin to thrombin.
Fascicle arrangements produce skeletal muscles with different structures and functional properties, and determine their individual range of motion and power. List the seven different fascicle arrangements of human skeletal muscles and give a specific example of each
What will be an ideal response?
If the ventral root of a spinal nerve were cut, what would be the result in the tissue or region that nerve supplies?
A) a complete loss of sensation and movement B) loss of neither sensation nor movement but only of autonomic control C) complete loss of sensation D) a complete loss of voluntary movement
Which of the following is a remnant of fetal circulation?
A. Ductus venosus B. Ligamentum venosum C. Ductus arteriosus D. Aortic sac E. Foramen ovale