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Which nerve fiber do impulses travel slowly?
Impulses travel more slowly through unmyelinated nerve fiber.
Mechanism of nerve conduction?
Nerve impulses are conducted along the axon in the myelinated nerve fiber with causes the polarity of the nerve.
What is a long nerve fiber that convey electrical impulses to other cells is called a?
A long nerve fiber that conveys electrical impulses to other cells is called an axon.
What is a group of nerve cells called?
A group of nerve cells all together is called a ganglion. These nerve cells are linked by synapses and attach to a nerve fiber.
COnduction speed of a nerve fiber would be the fastest in a?
...in a myelinated axon.
When a resting nerve fiber is polarized sodium and potassium ions is higher on the inside of its membrane?
A resting nerve fiber is polarized because the concentration ofNa+ is higher on the outside and K+ is higher on the inside.
How does nerve fiber become depolarized?
A nerve fiber becomes polarized when the resting potential of the membrane changes. It starts out with an unequal distribution of charges- the outside is more positive and the inside is less positive. (Sodium (Na+) is in a higher concentration on the outside of the membrane and Potassium (K+) is in a lower concentration on the inside of the membrane.) A stimulus changes the gradient- when more Na+ flows in, the resting potential changes and polarization occurs, allowing for an action potential to be propagated down the axon.
How the maintenance of a polarized state in a resting nerve is provided?
Maintenance of a polarized state of a resting nerve is achieved through continuous expenditure of energy.
What is required to maintain nerve fiber sheath?
required to maintain nerve fiber sheath
What is the difference between the contour and magnitude of single nerve fiber and nerve trunk?
What is the difference between the contour and magnitude of single nerve fiber and nerve trunk?
Which nerve fiber do impulses travel slowly?
Impulses travel more slowly through unmyelinated nerve fiber.
What fiber transmits impulses to the central nervous system?
The nerve fiber.
Why a peripheral nerve such as the sciatic nerve can contain nerve fiber from several spinal nerves?
The reason why a peripheral nerve such as the sciatic nerve can contain nerve fiber from several spinal nerves is owing to nerve plexuses. These are networks of nerves all tangled together and found mostly in the limbs.
What is non-myelinated nerve fiber?
a nerve fiber that lacks the fatty myelin insulating sheath. Such fibers form the gray matter of the nervous system, as distinguished from the white matter of myelinated fibers. Also called nonmedullated nerve fiber.
Mechanism of nerve conduction?
Nerve impulses are conducted along the axon in the myelinated nerve fiber with causes the polarity of the nerve.
What is the site where the muscle fiber and nerve fiber meet called?
Well of course they meet at the neuromuscular junction
What cause a nerve impulse move along the nerve fiber?
Electrical diferences.
