Which of the following is a vasoconstrictor released by platelets that aids in hemostasis?
A. Serotonin
B. Platelet-derived growth factor
C. Histamine
D. Factor XII
E. Plasmin
A. Serotonin
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The two layers of a serous membrane are
A) visceral and parietal. B) internal and external. C) pericardial and parietal. D) double sheets of peritoneum. E) pleural and parietal.
Muscle tissue has the ability to shorten when adequately stimulated, a characteristic known as ________
A) elasticity B) irritability C) contractility D) extensibility
Preganglionic fibers of the autonomic efferent pathway are ________ and secrete ________
A) myelinated; acetylcholine (ACh) and norepinephrine(NE) B) unmyelinated; acetylcholine (ACh) C) myelinated; acetylcholine (ACh) D) myelinated; norepinephrine (NE) E) unmyelinated; norepinephrine(NE)
Neurosomas of postganglionic parasympathetic neurons that stimulate the parotid salivary gland are located in the ________ ganglion.
Fill in the blank(s) with the appropriate word(s).