What helps prevent food from entering the trachea during swallowing?
a. elevation of the uvula
b. contraction of the pharyngeal muscles
c. positioning of the tongue
d. tight apposition of the vocal cords over the glottis
e. elevation of the epiglottis over the pharyngoesophageal sphincter
D
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Which of the following is not a true statement regarding the sympathetic division?
A) PNS ganglia are near the vertebral column. B) Preganglionic fibers are relatively short. C) Preganglionic neurons are located between T1 and L2 of the spinal cord. D) The effects are not widespread but very specific and localized. E) Postganglionic fibers are relatively long.
Working draft horses have the same nutritional needs as draft horses that are not working
Indicate whether the statement is true or false
In the tubular segments permeable to H2O, solute reabsorption is always accompanied by comparable H2O reabsorption
Indicate whether the statement is true or false
What capillaries come off of the efferent arterioles associated with juxtamedullary nephrons?
A) arcuate B) peritubular C) glomerulus D) vasa recta E) lobular