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It depends on whether it is afferent or efferent. The afferent neurons have their soma, or cell body, near the sensory receptor sites in the body tissues. The efferent spinal nerve cells have their soma near the spinal cord cord in a ganglion.
The gray matter in the spinal chord is mostly made up of the cell bodies of one of the three types of neurons, afferent, or sensory neurons, interneurons, which are also called association neurons, and efferent, or motor, neurons. The interneurons have their cell bodies roughly in the middle, with the dendrites projecting out to one side (usually heavily branched) and the axon projecting out to the other but each only a short distance. In motor neurones (efferent neurone) the cell body is very much at one end, with the dendrites branched directly from and the axon projecting a long way to reach the target. These neurons also have their cell bodies in the spinal column (usually) but there just are not as many of these as there are interneurons. The sensory neurones (afferent neurones) are quite like the interneurons in structure as they have their cell bodies in the middle but the distance the dendrites and the axons projects are much greater. The allows the cell bodies from many sensory neurons to be grouped together, a fair distance from the sensing tissue, what is also referred to as as affector organ, in a structure called a ganglia (the name for a collection of cell bodies in the periphery).
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Where are located peripheral motor neuron cell bodies?
For spinal nerves, the general somatic efferent motor neurons have their cell bodies located in the ventral horn of the spinal cord (sometimes also called the anterior horn).Some of your cranial nerves also have motor neurons located in various nuclei of the brainstem.
What is example of efferent nerves?
The somatic nervous system contains efferent nerves, such as the motor neurons that control voluntary movement of muscles. For example, the efferent nerves that innervate the skeletal muscles in your arms to produce movement when you reach for something are part of the somatic efferent nerves.
Is an ankle jerk reflex somatic or autonomic?
Ankle jerk is somatic. It is the reflex action, in which the afferent. connecting and the efferent neurons are involved. Autonomic nerves do not supply the striated muscles.
Where is the nucleus located in the neuron?
The nucleus of a neuron is typically located in the cell body, also known as the soma. It is located towards the center of the neuron, where it functions to control the activities of the cell and contains the genetic material needed for cellular functioning.
What are 3 types of neurons?
Functional types of neurons: 1. sensory (afferent) neurons - input to CNS from sensory receptors; dendrites located at receptors, axons in nerves, cell bodies in ganglia outside the CNS 2. motor (efferent) neurons - output from CNS to effectors cell bodies and dendrites located in the CNS, axons in nerves 3. interneurons - communicate and integrate information within the CNS; located entirely within the CNS
What are the three types of neuron?
Functional types of neurons: 1. sensory (afferent) neurons - input to CNS from sensory receptors; dendrites located at receptors, axons in nerves, cell bodies in ganglia outside the CNS 2. motor (efferent) neurons - output from CNS to effectors cell bodies and dendrites located in the CNS, axons in nerves 3. interneurons - communicate and integrate information within the CNS; located entirely within the CNS
Where are post ganglionic neurons cell bodies located?
Postganglionic neurons cell bodies are located in autonomic ganglia, which are small clusters of nerve cells located outside the central nervous system. These ganglia are found along the pathway of the autonomic nerves, allowing for communication between the central nervous system and peripheral organs.
What are some collections of nerve cell bodies found in a small number of locations outside the central nervous system are called?
Ganglia. Ganglia are collections of nerve cell bodies found outside the central nervous system, typically located along the peripheral nerves. They can be sensory ganglia (containing cell bodies of sensory neurons) or autonomic ganglia (containing cell bodies of autonomic neurons).
What are the three broad categories of neurons?
Functional types of neurons: 1. sensory (afferent) neurons - input to CNS from sensory receptors; dendrites located at receptors, axons in nerves, cell bodies in ganglia outside the CNS 2. motor (efferent) neurons - output from CNS to effectors cell bodies and dendrites located in the CNS, axons in nerves 3. interneurons - communicate and integrate information within the CNS; located entirely within the CNS
Are collections of neuron cell bodies associated with nerves in the PNS?
Yes, collections of neuron cell bodies associated with nerves in the peripheral nervous system (PNS) are known as ganglia. Ganglia can contain cell bodies of sensory neurons (dorsal root ganglia) or autonomic neurons (autonomic ganglia) that help relay information to and from the central nervous system.
Nerves are clusters of what?
nerves are clusters of NEURONS.
What type of nerve stimulates muscle cells to contract?
Somatic type of nerves stimulate the muscle cells to contract.
