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What ion flows into a nerve cell when an axon's membrane depolarizes?
Wiki User
∙ 10y ago
During the depolarization phase, sodium ions enter the cell through the open ion-channels (Na+ influx).
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoTry this:
http://Biology.bard.edu/ferguson/course/bio204/Lectures_&_Old_Exams/Figures_for_Lecture_03.pdf
Wiki User
∙ 10y agoresults from the opening of voltage-gated Na+ channels
when the voltage-gated Na+ channels open, Na+ rushes into the cell causing depolarization
Wiki User
∙ 12y agoSodium moves inwards
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The axons of the retina culminate in what nerve?
the axons of the retina culminate in the optic nerve which forms a blind spot on the retina
What part of the nerve are Axons and dendrites?
cell
What does the process of transmitting a nerve impulse from one neuron to another involve?
When a neurotransmitter lands on their receptor site, they can either excite of inhibit the receiving cell. To excite a cell, positive sodium ions flow to it, which depolarizes the membrane in a similar way to a nerve impulse. The depolarizing effect spreads through the membrane and only last for 1/3 of a millisecond.
What substances carry a nerve impulse?
Neurons and their axons
The optic nerve is composed of axons of?
ganglion cells
What are Bundles of axons are called?
NERVES
Where do axons from the olfactory nerve project to?
Axons from the olfactory nerve project directly to the
The axons of the retina culminate in what nerve?
the axons of the retina culminate in the optic nerve which forms a blind spot on the retina
Which ions causes neurotransmitter vesicles to fuse with the axons membrane during the conduction of a nerve impulse from one neuron to the next?
I believe it's Na+
What is a nerve impule transmitted by axons?
It is called a nerve impulse.
What is a cable-like bundle of fibers or axons?
nerve
What are the structures at the end of axons?
nerve
Do the axons of retinal ganglion cells form the optic nerve?
Yes. The Retinal Ganglion Cell axons form the optic nerve.
Axons and dendrites?
There are 2 types OS nerve fibers, called axons and dendrites. The axons carry nerve impulses away from the cellbody, while dendrites carry them towards the cell body.
What part of the nerve are Axons and dendrites?
cell
Do Axons carries impulses toward the nerve cell body?
No, axons carry impulses away from the nerve cell body.
What does the process of transmitting a nerve impulse from one neuron to another involve?
When a neurotransmitter lands on their receptor site, they can either excite of inhibit the receiving cell. To excite a cell, positive sodium ions flow to it, which depolarizes the membrane in a similar way to a nerve impulse. The depolarizing effect spreads through the membrane and only last for 1/3 of a millisecond.
