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Do schwann cells surround axons of neurons on the cerebrum?
No, Schwann cells do not surround axons of neurons in the cerebrum. Schwann cells are primarily found in the peripheral nervous system, where they myelinate peripheral axons. In the central nervous system, including the cerebrum, oligodendrocytes perform a similar function by myelinating axons.
What are the two kinds of branches that extend from the cell body of a neuron?
The two kinds of branches that extend from the cell body of a neuron are dendrites and axons. Dendrites receive signals from other neurons and transmit them towards the cell body, while axons transmit signals away from the cell body to other neurons or target cells.
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
Are axons most located and protected within the CNS?
axons
Does the parasympathetic division have long preganglionic axons and a short ganglionic axon?
Yes, the parasympathetic division typically has long preganglionic axons and short ganglionic axons. The ganglia of the parasympathetic division are typically located near or within the target organ, leading to short postganglionic axons.
Can a neuron have more than two axons?
No, a neuron typically has only one axon which carries nerve impulses away from the cell body. However, certain types of neurons, such as those in invertebrates, can have multiple axon-like processes known as neurites that function in a similar way to axons.
Which elongated cell can conduct impulses?
A neuron is an elongated cell that can conduct impulses. Neurons have specialized structures called axons that transmit electrical signals over long distances within the body.
Do schwann cells surround axons of neurons on the cerebrum?
No, Schwann cells do not surround axons of neurons in the cerebrum. Schwann cells are primarily found in the peripheral nervous system, where they myelinate peripheral axons. In the central nervous system, including the cerebrum, oligodendrocytes perform a similar function by myelinating axons.
Why does action potential's move through axons in only one direction?
the axons and dentrites would get mixed up and the brain would be thinking in two ways and we would be confused to which one was which
What are the two kinds of branches that extend from the cell body of a neuron?
The two kinds of branches that extend from the cell body of a neuron are dendrites and axons. Dendrites receive signals from other neurons and transmit them towards the cell body, while axons transmit signals away from the cell body to other neurons or target cells.
How do the conduction velocities of unmyelinated axons compare to myelinated axons?
Unmyelinated axons have slower conduction velocities compared to myelinated axons. Myelinated axons are able to conduct nerve impulses faster due to the insulation provided by the myelin sheath.
Do axons send or receive signals?
Axons send signals.
What are oligodendrocytes similar to?
Oligodendrocytes are similar to Schwann cells, as both are types of glial cells that provide support and insulation to neurons. While oligodendrocytes myelinate multiple axons in the central nervous system, Schwann cells myelinate single axons in the peripheral nervous system. Both cell types are crucial for maintaining proper neuronal function and signal transmission.
What axons do nerves contain?
Nerves are like trees. The have branches call axons.
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 is another name for Myelinated axons?
In preserved brains, the myelinated axons look white. Therefore, what we call "white matter" is typically made of axons.
Are axons most located and protected within the CNS?
axons
