Bundles of axons in the central nervous system are called

Biology

1 answer:

Karolina [17]2 years ago

7 0

Answer: Bundles of axons in the central nervous system are called a "tract"

Explanation:

Axons(nerve fiber) consist of long slender projection of neurons or nerve cells that conduct and transmit impulses away from the neuron or nerve cell body. Axons are surrounded by endoneurium layer which contain protein fluid that surround each axon.

Bundles of axon in the CNS is known as tract. We have ascending tracts and descending tracts. The ascending tracts function are to conduct and carry impulses along the spinal cord to the brain while the descending tracts transmit and carry the impulses from the brain to lower regions (downward) of the body. Tracts are identified by their origin (where the bundle start) and also the end/termination of axon bundle.

The largest tracts are fasciculi gracilis and cuneatus which are known as ascending tracts.

You might be interested in

What are the types of bones

Ksenya-84 [330]

Answer: The four principal types of bones are long, short, flat and irregular. Bones that are longer than they are wide are called long bones.

Hope this helps...... Stay safe and have a Merry Christmas!!!! :D

I just want to say that my account got deleted yesterday and i would love if i got at least 15-20 friends by Christmas.

5 0

2 years ago

Can i take a picture of bugs and can someone identifie them??

Jet001 [13]

Sure how though?
you can do it through here

4 0

2 years ago

Steroid hormones exert their action by ________. A. entering the nucleus of a cell and initiating or altering the expression of

Blizzard [7]

Answer:

The correct option is A. Steroid hormones exert their action by entering the nucleus of a cell and initiating or altering the expression of a gene.

Explanation:

Steroid hormones are derived from cholesterol and regulate multiple biological processes. All steroid hormones exert their action by crossing the plasma membrane and by binding with their respective intracellular receptors. They stimulate cell growth in a very different way, their lipophilic nature gives them the ability to cross lipid barriers, so, without the need for extracellular signals, these hormones can easily enter the cell, cross the cytoplasm and reach the nucleus. There they bind to specific receptors that are associated with DNA promoter regions, modifying their structure and promoting the expression of the genes under their control.

5 0

3 years ago

If a response encourages or amplifies the original stimulus, the system is a

lara31 [8.8K]

Answer: Positive

Explanation:

It encourages that stimulus.

5 0

2 years ago

The relationship between the amount of energy available for use and the amount of entropy in a food chain differs between trophi

Anarel [89]

<span>B. energy is lost at each level as heat, which increases randomization
</span>