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Macrophages will remove the debris of the myelin
sheath and other cellular items. The axon may begin to regrow into a tube that is created by remaining membrane and connective tissue, having been influenced by the nerve growth factors that comes from neuroglial
cells that are nearby. At the same time, remaining Schwann
cells will multiply and form a new myelin
sheath around the axon.
Axons can regenerate through a process called axonal sprouting, where new branches form on the damaged axon. This process is often guided by growth-promoting molecules in the surrounding environment, and specialized cells called Schwann cells play a crucial role in facilitating axon regeneration. However, the success of axon regeneration can vary depending on factors such as the extent of the damage and the presence of inhibitory factors in the environment.
Neurons are amitotic- they do not reproduce. However, research has been done on the production of new neurons in adults from neural stem cells (adult neurogenesis).
Neurons are the only cells in the human body that cannot regenerate.
Hence brain damage of any sort is irreversible, and permanent.
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The axons of the retina culminate in what nerve?
The axons of the retina culminate in the optic nerve.
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.
Are unmyelinated axons in the cerebral cortex?
Yes, unmyelinated axons are present in the cerebral cortex. While many neurons in the cerebral cortex have myelinated axons, some interneurons and shorter local circuit neurons have unmyelinated axons. These unmyelinated axons play a role in the local processing and communication within the cortex.
What connective tissue cover myelinated or unmyelinated axons?
Axons are covered by connective tissue called endoneurium. Multiple axons are bundled together within fascicles, which are surrounded by perineurium. Finally, the entire nerve is enveloped by epineurium.
Do frogs regenerate?
frogs do regenerate
Do lizards regenerate themseves?
the answer is no but they can regenerate their tails
Can sponges regenerate?
yes they can regenerate. Marine sponges are multicellular animals that can regenerate from single cells.
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.
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
Do ovaries regenerate?
No, ovaries do not regenerate. Unlike some tissues in the body, ovaries do not have the ability to regenerate or regrow once damaged.
What is the bundle of axons called in the CNS?
Axons and dendrites that go to or from the same region of the body travel together in bundles, somewhat like telephone cables. A nerve is a bundle of axons and/or dendrites in the PNS. A bundle of axons and/or dendrites in the CNS is called a tract.for more info see link below
What iscomposed of lipid material and covers axons?
The myelin sheath is composed of lipid material and covers 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.
Axons and dendrites?
Axons are responsible for transmitting electrical signals away from the neuron cell body. Dendrites, on the other hand, receive incoming signals from axons of other neurons. Together, axons and dendrites play a crucial role in the communication between neurons in the nervous system.
