Answered: Two axons are tested for propagation…

Two axons are tested for propagation velocities (speeds). One carries action potentials at 50 meters per second, the other at 1 meter per second. Which axon is myelinated?

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Related questions

Q: describe how myelination and axon diameter contributes to the increased speed of nerve impulse…

A: The information transmitted by neurons is named nerve impulses. Nerve impulses can roam very rapidly…

Q: a.Would an action potential travels faster in an axon with a wide diameter or a small diameter? b.…

A: The structural and functional unit of the nervous system is called a neuron. A neuron is composed of…

Q: Oligodendrocyte Neurlemma Reset Zoom Schwann cell Basal lamina Nucleus Dendrite Endoneurium…

A: Neurons are nerve cells specialized in conducting nerve impulses in response to stimuli from the…

Q: Assume that two nerves fibers have the same diameter, but one is myelinated and the other is…

A: The information is transmitted in the form of action potential along the axon. The velocity of…

Q: "After an action potential has just passed through the axon hillock, the voltage-gated Na+ channels…

A: Thank you for the question Answer : If a second action potential can be generated it refers to as…

Q: Temporal summation refers to: summation of action potentials in the temporal cortex. summation of…

A: IntroductionThe process of summing, which encompasses both spatial and temporal summation, decides…

Q: Which of the following choices correctly fills in the blanks? After repolarization, the sodium ions…

A: The action potential is the process by which the signal propagates through the neurons, and this…

Q: During the relative refractory period: Can select more than one K+ channels are open. Na+…

A: The action potential propagation is the method in which a stimulus travels through the neurons, and…

Q: he rate of conduction of an action potential along a nerve fiber is affected by a range of things.…

A: Introduction Nerve conduction:- It is an electrochemical process, Conduction of nerve impulse occurs…

Q: Tetrodotoxin is a poison that prevents voltage-gated channels from opening. Would this toxin prevent…

A: Tetrodotoxin is a potential neurotoxin which is extremely poisonous and can be found in the liver…

Q: Explain how myelination of the axon results in saltatory conduction, and how this increases the…

A: Neurons are the basic umit of the nervous system and helps in control qnd coordination.

Q: Using the neurons below, how can you decrease the connection strength (amplitude of EPSP) onto the…

A: Disclaimer: "Since you have asked multiple questions, according to the guidelines of Bartleby, only…

Q: When is an action potential triggered? (Choose 1) When IPSPs exceeds EPSPs When EPSPs exceeds…

A: The development of action potential depends on the movement of specific ions into the neurons that…

Q: A nerve impulse travels faster in small myelinated fibers large myelinated fibers large unmyelinated…

A: Answer : large myelinated fibres. - at the speed of 179-268 miles per hour.

Q: When they are not being stimulated, neurons have an electrical charge across their membranes called…

A: The control and coordination of the body in humans occur by two systems: the nervous system and the…

Q: Why is saltatory conduction along a myelinated axon faster than continuous conduction along an…

A: The cell body comprises the nucleus and other cell organelles. Dendrites expand from the cell body…

Q: Which ion concentration relationship is true when a neuron is at rest? (Select all that apply) More…

A: When a neuron is not sending a signal it is at 'rest'. During the rest state, all the voltage-gated…

Q: Areas of myelinated axons create the appearance of _______ matter, while neuron cell bodies and…

Q: What are the differences between myelinated and unmyelinated axons? Which conducts axon potentials…

A: Neurons(nerve cells) are defined as the specialized cell which acts as the fundamental unit of brain…

Q: Describe how depolarization occurs along an unmyelinated neuronal axon

A: Propagation of action potential leads to the depolarization of neuron.

Q: Which of the following cells helps control the concentration of ions in the chemical environment…

A: Neurons are the basic structural and functional unit of nervous system. Nervous system is divided…

Q: Which determines a neuron's maximal rate of firing? The duration of the refractory phase O The…

A: Neurons (also known as neurones or nerve cells) are the basic units of the brain and nervous…

Q: How can an EPSPs ability to stimulate action potential be enhanced?

A: The neuron is a specialized cell that is capable of generating an action potential on the cell…

Q: What is a typical speed of action potential propagation in the absence of myelination? (Not the…

A: Brain cells called neurons send data and guidelines all through the cerebrum and body. The data is…

Q: How does conduction along a myelinated fiber differ from conduction along an un-myelinated fiber?

A: Myelin is a substance which is rich in lipids and surrounds the nerve cell axons in order to…

Q: is it possible for a second action potential to start during the refractory period?

A: The resting membrane potential between the inner and outer side of the neural membrane is balanced…

Q: Distinguish between insulation by oligodendrocyte or Schwann cells. Relate myelination to signal…

A: Glial cells are the cells supporting the central as well as peripheral nervous system functions.…

Q: yelin sheaths function to electrically insulate neurons. Compare and contrast the myelination in the…

A: Myelin is a sheath-like insulating coating that forms around nerves, including those in the brain…

Q: channels there won t open for a period of time. However, if the stimulus is strong enough, another…

A: Refractory period is a period of time during which the cell ja incapable of repeating an action…

Question

Two axons are tested for propagation velocities (speeds). One carries action potentials at 50 meters per second, the other at 1 meter per second. Which axon is myelinated?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Which of the following would most likely occur if you experimentally depolarise the middle of an axon to threshold using an electronic probe? Question 24 options: an action potential will be initiated and proceed only in the normal direction toward the axon terminal no action potential will be initiated an action potential will be initiated and proceed only back toward the axon hillock two action potentials will be initiated and will proceed in opposite directions
what are Axons coated with this electrically insulating substance have higher conduction velocities compared to neurons without it?
Define refractory period, and explain the difference between the absolute refractory period and relative refractory period associated with transmitting an action potential.
Distinguish between saltatory nerve signal conduction in myelinated axons versus unmyelinated
What is/are true statements about Action Potentials? Select all that apply. Group of answer choices: A. action potentials propagate down axons B. nformation is coded through the frequency of action potentials C. action potentials are slower in myelinated axons D. action potentials vary depending on the strength of the stimulus
What is the term used to describe the state of an axon in the later phase of an action potential during which an increase in current is required to produce another action potential? partially inhibited refractory relatively refractory disequilibriated refractory relatively disinhibited refractory
Explain why myelinated axons can propagate (spread) action potentials faster than unmyelinated axons.
What is the difference between the absolute refractory period versus the relative refractory period?
Two branching dendritic arbors are stimulated at the same exact time at locations A & B which are both 10 um away from the axon hillock. Upon stimulation, location A depolarizes 20 mV and location B depolarizes 15 mV. The time constant is the same in both dendrites. The length constant in both dendrites is 10 um. The RMP is -70 mV and the threshold to fire an action potential is -55 mV. Based on the above information, does the neuron fire an action potential? Explain your answer.