Which of the following is true of a muscle that is relaxing?
A) Oxygen is depleted.
B) Released calcium ions are present.
C) ATP levels are low.
D) The tendons are taut.
E) AChE is present in the synaptic cleft.
E) AChE is present in the synaptic cleft.
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The trachea:
a. is also called the windpipe b. contains C-shaped rings of cartilage c. is lined by respiratory mucosa d. all of the above
What secretory cells of the stomach secrete hydrochloric acid?
A) chief cells B) parietal cells C) serous cells D) mucus neck cells
Excess glucose in animals is stored as ________.
A. cellulose B. glycogen C. galactose D. starch E. sucrose
Excitotoxicity is caused by ________.
A. GABA inhibition B. insufficient synaptic release of ACh C. excessive synaptic release of glutamate D. insufficient synaptic release of glutamate