On a muscle fiber, the two terminal cisternae and the centrally placed T-tubule form a structure called a ________.
Fill in the blank(s) with the appropriate word(s).
triad
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Sometimes, when it is difficult to initiate a knee-jerk reflex by tapping the patellar tendon, a patient will be asked to voluntarily make a fist. Then the reflex will be easily evoked. What does this illustrate about the relation between voluntary and involuntary reflex movement?
In diabetes mellitus,
a. too much glucose is transferred into the brain cells by an insulin excess b. brain cells do not receive an adequate supply of glucose, leading to symptoms of decreased CNS activity c. too much glucose is lost in the urine, resulting in abnormally low blood glucose levels d. abnormalities may include polyuria, polydipsia, polyphagia, ketosis, and acidosis e. more than one of the above conditions exist
The large artery that serves the brain is the __________.
a. external carotid artery b. subclavian artery c. cephalic artery d. internal carotid artery
What is part of the reward pathway?