« previous next »

Author Question: Which one of Sherrington's inferences about the synapse was WRONG? a. Transmission at a synapse ... (Read 118 times)

maychende

  • Hero Member
  • *****
  • Posts: 556
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

  • Sr. Member
  • ****
  • Posts: 350
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.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Modes of transmission Modes of transmission
A synapse. A synapse.
The anatomy of a typical synapse. The anatomy of a typical synapse.
Transmission of sex-linked disorders. Transmission of sex-linked disorders.
(a) Parasympathetic pathway. ACh is released from the preganglionic neuron over the synapse and ... (a) Parasympathetic pathway. ACh is released from the preganglionic neuron over the synapse and ...
Transmission electron microscope Transmission electron microscope
Video: Action potentials - electrical characteristics and generation

For a complete list of videos, visit our video library