One of the ways an inhibitory neurotransmitter can work is by causing the postsynaptic cell to
A. close chloride gates and prevent chloride exit.
B. open sodium gates and allow sodium entry.
C. open potassium gates and allow potassium exit.
D. open both sodium and calcium gates.
Answer: C
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The cisterna chyli receives lymph from which of the following?
A) the lower extremities B) the pelvis C) the lower abdomen D) All of the answers are correct. E) None of the answers are correct.
________ is a hormone that promotes bone resorption by the osteoclasts.
What will be an ideal response?
Most hormones are regulated by ________ mechanisms.
A. hormonal-feedback B. negative-feedback C. neural-feedback D. positive-feedback
The vital centers for the control of heartbeat, respiration, and blood vessel diameter are located in the:
a. pons b. medulla c. cerebrum d. cerebellum