In most cells, insulin stimulates uptake of glucose by
a. penetrating the cellular membranes itself, and thereby providing a pathway for glucose to enter the cells.
b. activating insulin receptors, which are themselves glucose transporters.
c. stimulating the recruitment of glucose transporters to the membrane, which in turn facilitate the import of glucose.
d. activating the transcription and translation of glucose transporter-genes, increasing their expression.
e. altering the ratio of intracellular sodium concentrations to extracellular sodium concentrations in a way that favors co-transport of glucose and sodium.
C
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Which of the following is considered a normal blood pH?
A) 7.50 B) 7.85 C) 7.40 D) 7.10
Which of the following cranial nerves is NOT associated with eye muscles?
A. Trochlear B. Oculomotor C. Abducens D. Glossopharyngeal
When fluorescein dye is place on the cornea, excess fluid may drip from the nose because the dye may travel down the __________________ duct
Fill in the blank(s) with correct word
Twitch summation
a. is a means by which gradation of muscle contraction may be accomplished b. results from the additional release of Ca2+ within the cytosol of muscle fibers c. results from increasing the frequency at which motor units are firing within a muscle d. results from more cross bridges binding to actin within muscle fibers e. has all of the above characteristics