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Author Question: Which one of Sherrington's inferences about the synapse was WRONG? a. Transmission at a synapse ... (Read 117 times)

maychende

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on: Jun 22, 2018
Which one of Sherrington's inferences about the synapse was WRONG?
 
  a. Transmission at a synapse is slower than transmission of impulses along an axon.
  b. Transmission at the synapse is primarily an electrical process.
 c. Synapses can be either excitatory or inhibitory.
 d. Synapses make spatial summation and temporal summation possible.

Question 2

How does cholecystokinin limit meal size?
 
  What will be an ideal response?


orangecrush

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Reply #1 on: Jun 22, 2018
Answer to Question 1

b

Answer to Question 2

Cholecystokinin constricts the sphincter muscle between the stomach and duodenum, causing the stomach to hold its contents and fill more quickly than usual. It also stimulates the vagus nerve to send signals to the hypothalamus, causing cells there to release a neurotransmitter that is a shorter version of the cholecystokinin molecule itself.


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