A patient who experienced head trauma has lost the ability to taste spicy food. You should expect damage to cranial nerve
A) VII.
B) III.
C) IX.
D) V.
E) XIII.
Answer: D
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During a hyperpolarizing graded potential, positively charged ions flow away from the site of the initial hyperpolarization on the outside of membrane and toward this site on the inside.
Answer the following statement true (T) or false (F)
Chemical reactions that absorb energy are called
A) exergonic. B) endergonic. C) equilibrial. D) decomposition. E) exchange.
Some hormones act to regulate the concentration of intracellular signals like cyclic adenosine monophosphate (cyclic AMP, or cAMP) by activating or inhibiting adenylyl cyclase, the enzyme responsible for its production, or by activating or inhibiting phosphodiesterases, which are responsible for its destruction. Cyclic AMP, in turn, functions by activating enzyme cascades that set certain
metabolic pathways in motion. The regulation of cAMP levels in cells is an example of a. homeostasis. b. rheostasis. c. equilibrium. d. adaptation. e. all of these.
In 1848, Phineas Gage sustained a brain injury when an iron rod pierced through his left prefrontal cerebral cortex. What do you think was the result?
A) Gage's personality, behavior, and psychological state changed. B) Gage was unable to understand language. C) Gage was unable to produce language. D) Gage was unable to move the right side of his body.