Where are upper motor neurons located?
A. Spinothalamic tract
B. Posterior horn of the spinal cord
C. Cerebral cortex or brainstem
D. Anterior horn of the spinal cord
E. Spinal cord
Answer: C
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Which of these statements concerning the larynx is incorrect?
A. The larynx contains three unpaired cartilages. B. When the vestibular folds come together, they prevent air from leaving the lungs. C. Unlike the other cartilages of the larynx, the epiglottis consists of hyaline cartilage. D. The epiglottis prevents food particles from entering the larynx. E. The larynx has all of these properties.
All cells in the epidermis arise from mitotic activity in stratum:
A) lucidum. B) granulosum. C) basale. D) corneum.
Normally, an adult male will require an ET tube that ranges from:
A) 6.5 to 7.0 mm. B) 7.0 to 7.5 mm. C) 7.5 to 8.5 mm. D) 8.5 to 9.0 mm.
Vasopressin has which of the following actions?
A. increases the water permeability of the thick ascending limb of Henle's loop B. increases the urea permeability of the cortical portion of the collecting duct C. increases the water permeability of the collecting duct D. decreases the GFR E. increases the water permeability of the proximal tubule