Of which categories of receptor types are nociceptors?
A. mechanoreceptors and photoreceptors
B. chemoreceptors and proprioceptors
C. mechanoreceptors and chemoreceptors
D. chemoreceptors and photoreceptors
C
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An extended period of time between the P wave and the QRS complex may indicate which of the following?
A) The signal is traveling too quickly to the AV node. B) Ventricular contraction is faster than usual. C) The atria are not contracting. D) The signal is taking too long to get to the AV node. E) Ventricular contraction is taking longer than usual.
The fusion of the two brachiocephalic veins forms the
A) inferior vena cava. B) superior vena cava. C) phrenic vein. D) azygos vein. E) highest intercostal vein.
Changes called male climacteric are a consequence of a(n) ________.
A. decreased secretion of testosterone B. increased secretion of progesterone C. increased secretion of estrogens D. increased secretion of FSH and LH E. increased secretion of GnRH
Addison disease is a consequence of a tumor of the adrenal medulla.
Answer the following statement true (T) or false (F)