« previous next »

Author Question: In a myelinated axon, action potentials are produced a. only at the axon hillock. b. only at the ... (Read 317 times)

madam-professor

  • Hero Member
  • *****
  • Posts: 584
on: Jun 21, 2018
In a myelinated axon, action potentials are produced
 
  a. only at the axon hillock.
 b. only at the axon hillock and at the nodes of Ranvier.
 c. along the entire length of the axon membrane.
 d. only under segments of myelin.

Question 2

Action potentials only go in one direction, away from the cell body, because
 
  a. the adjacent prior segment of axon is still at +40mV.
 b. voltage-dependent gates are limited in the frequency with which they can open.
 c. the adjacent prior segment is still in refractory period.
 d. the action potential temporarily disables the sodium-potassium pumps.


AmberC1996

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jun 21, 2018
Answer to Question 1

b

Answer to Question 2

c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

madam-professor

  • Hero Member
  • *****
  • Posts: 584
Reply #2 on: Jun 21, 2018
Thank you


AmberC1996

  • Sr. Member
  • ****
  • Posts: 317
Reply #3 on: Jun 21, 2018
No problem :)


« previous next »
 

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

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.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

No recombinants are produced without cell contact No recombinants are produced without cell contact
Mechanisms of Action of Antiprostatic Drugs Mechanisms of Action of Antiprostatic Drugs
Action Potentials and Contractions of a Muscle Fiber Action Potentials and Contractions of a Muscle Fiber
When Union troops pushed toward Richmond in June of 1862, these slaves crossed the Rappahannock Rive When Union troops pushed toward Richmond in June of 1862, these slaves crossed the Rappahannock Rive
Characteristics of a Neuron at Rest and During the Different Phases of an Action Potential Characteristics of a Neuron at Rest and During the Different Phases of an Action Potential
Sites of action of some respiratory inhibitors and artificial electron acceptors Sites of action of some respiratory inhibitors and artificial electron acceptors
Video: Nucleic acid digestion -small intestine

For a complete list of videos, visit our video library