0
What else can I help you with?
Difference between optic tract and optic nerve?
Bundles of neuron processes are called tracts in the cns and nerves in the pns
The speed of nerve impulse transmission through the axon of a sensory neuron will be quickest in?
I'm guessing; "myelinated nerve fibres" contrary to the much slower "non-myelinated nerve fibres"
Are neurosomas of the anterior root located in the gray matter?
Yes, neurosomas of the anterior root are located in the gray matter of the spinal cord. The gray matter contains cell bodies, dendrites, and unmyelinated axons, whereas the white matter consists mostly of myelinated axons.
Are nerve fibers in ascending tracts myelinated?
If I was paying attention in med school, I think... The pre-ganglionic fibers are myelinated and the post-ganglionic are unmyelinated. This is in reference to the sympathetic and parasympathetic systems.
What does non myelinated fibers look like?
Non-myelinated fibers appear as thin, unmyelinated axons within bundles of nerve fibers. They lack the myelin sheath that surrounds some other nerve fibers, which gives them a more transparent or grayish appearance compared to myelinated fibers. Non-myelinated fibers are typically smaller in diameter and conduct nerve impulses more slowly than myelinated fibers.
What is white matter in the brain composed of?
largely or entirely composed of nerve fibers and contain few or no neuronal cell bodies or dendrites.
Which structures pertain to neurons?
Synapses, dendrites, dendritic spines (bumps on dendrites where synapses are often found), dendritic arbors (tree-like projections of dendrites), somas (body of neuron), axon hillocks (where a summation of input impulses may initiate an action potential or spike), axons, myelin sheaths (on myelinated axons), and axon terminals (containing vesicles of neurotransmitters).
What impulse conduction is the fastest in neurons?
Axons conduct the nerve impulses. Dendrites receive the impulses. Possible the impulses go through the dendrites faster, though the synaptic cleft may slow this pathway. Dendrites are much shorter than axons.
Does a worm have a myelinated or non-myelinated neuron?
non-myelinated
What is gray matter made out of?
Gray matter is primarily composed of cell bodies, dendrites, and glial cells. Cell bodies are the main component, containing the nucleus and organelles of neurons. Dendrites receive signals from other neurons, while glial cells provide support and nutrients to neurons.
Difference between optic tract and optic nerve?
Bundles of neuron processes are called tracts in the cns and nerves in the pns
Does the hippocampus count as gray or white matter?
The hippocampus is primarily composed of gray matter, which consists of cell bodies, dendrites, and synapses. White matter, on the other hand, is made up of myelinated axons.
The speed of nerve impulse transmission through the axon of a sensory neuron will be quickest in?
I'm guessing; "myelinated nerve fibres" contrary to the much slower "non-myelinated nerve fibres"
Myelinated neurons are embedded in what?
the axons of myelinated neurons are embeded in a protective covering of gray matter.
Are muscles and glands myelinated?
Muscles and glands are not myelinated. It is the axon of a neuron that is myelinated. The myelin forms a layer called myelin sheath that makes the nervous system function properly.
Are nerve fibers in ascending tracts myelinated?
If I was paying attention in med school, I think... The pre-ganglionic fibers are myelinated and the post-ganglionic are unmyelinated. This is in reference to the sympathetic and parasympathetic systems.
Are neurosomas of the anterior root located in the gray matter?
Yes, neurosomas of the anterior root are located in the gray matter of the spinal cord. The gray matter contains cell bodies, dendrites, and unmyelinated axons, whereas the white matter consists mostly of myelinated axons.
