Which nerve carries more than 90% of the parasympathetic fibers?
A. Glossopharyngeal
B. Phrenic
C. Pelvic splanchnic
D. Vagus
E. Facial
D. Vagus
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The respiratory mucosa consists of
A) epithelium and underlying layer of areolar tissue. B) dense irregular connective and adipose tissue. C) ciliated stratified squamous and columnar cells. D) fibrocartilage and mucous cells. E) dense regular connective and areolar tissue.
Which of the following is true about paranasal sinuses?
A) Paranasal sinuses open into the oral cavity. B) Paranasal sinuses enhance the resonance of the voice and lighten the skull. C) Paranasal sinuses contain passages acting as one-way valves. D) Paranasal sinuses are found in maxillary, ethmoid, and lacrimal bones.
The actions of glucocorticoids include
a. increased gluconeogenesis and glycogenolysis. b. increased fat mobilization. c. increased breakdown of muscle proteins. d. anti-inflammatory and immunosuppressive effects at pharmacological levels. e. all of these answers.
Action potentials would be conducted most rapidly by ________.
A. a 10 mm diameter unmyelinated axon B. a 40 mm diameter unmyelinated axon C. a 10 mm diameter myelinated axon D. a 40 mm diameter myelinated axon