Solid food and liquids are carried from the pharyngeal region to the stomach by the __________.
a. esophagus
b. oropharynx
c. nasopharynx
d. laryngopharynx
Ans: a. esophagus
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The hormone erythropoietin is produced and secreted
A) by shifting of production away from making stem cells. B) in response to stimulation of the rate of cell division in erythroblasts. C) by the spleen. D) by the bone marrow. E) during hypoxic conditions.
Blood from coronary circulation is returned to the right atrium of the heart via:
anastomoses the circumflex branch the anterior interventricular branch coronary sinus none of the choices are correct
Starting in the spinal cord, trace the path of a nerve impulse through the sympathetic ANS to its target organ in the abdominal cavity
A) preganglionic neurons (T1-L2 ) — collateral ganglia — ganglionic neurons — visceral effectors in abdominopelvic cavity B) preganglionic neurons (S2-S4 ) — collateral ganglia — ganglionic neurons — visceral effectors in abdominopelvic cavity C) collateral ganglia — preganglionic neurons (T1-L2 ) — ganglionic neurons — visceral effectors in abdominopelvic cavity D) collateral ganglia — preganglionic neurons (S2-S4 ) — ganglionic neurons — visceral effectors in abdominopelvic cavity E) ganglionic neurons — preganglionic neurons ((T1-L2 ) — collateral ganglia — visceral effectors in abdominopelvic cavity
In order to regenerate, a peripheral nerve fiber must have which of the following?
A. All dendrites intact B. At least the entire axon and neurilemma intact C. At least part of the neurosoma intact D. The neurosoma and at least some neurilemma intact E. At least half the length of the fiber intact