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Which part of the neuron acts as a receiver for nerve impulses?
Wiki User
∙ 12y ago
potassuim
axon terminals transmit info from their neuron to another, while dendrites receive info from other neurons.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoDendrites
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What does the sheath do in the nerve cell?
The myelin sheath acts as a covering on the axon of a neuron just as the covering on the cord you plug into an electrical socket. If it is damaged, the current can be "short circuited" and the neuron and the axon will not function. This sheath allows impulses to travel rapidly. MS is a disease where these sheaths are damaged.
What is the function of the axon hillock?
An axon hillock is part of a neuron that acts as a bridge between the cell body and the axon. Electrical impulses from the dendrites and cell body are summed at this point, which is then sent down the axon.
The senses acts as the alert system reacting to what?
Stimuli, (also for the rest of the worksheet), eyes detect - light rays, impulses to the brain - optic nerve , ears - sound, balance, nasal - olfactory, molecules, tongue - taste buds, salty and bitter.
What is the function of the cell body in the nervous system?
The cell body (soma) is the factory of the neuron. It produces all the proteins for the dendrites, axons and synaptic terminals and contains specialized organelles such as the mitochondria, Golgi apparatus, endoplasmic reticulum, secretory granules, ribosomes and polysomes to provide energy and make the parts, as well as a production line to assemble the parts into completed products.
What is the complex of tiny islands of gray matter within the brain that acts as a filter for incoming sensory impulses?
reticular formation
What does the sheath do in the nerve cell?
The myelin sheath acts as a covering on the axon of a neuron just as the covering on the cord you plug into an electrical socket. If it is damaged, the current can be "short circuited" and the neuron and the axon will not function. This sheath allows impulses to travel rapidly. MS is a disease where these sheaths are damaged.
Which part of the nervous system acts as the coordinator in the passage of a nerve impulse?
Synapses are the part of the nervous system that coordinates the passage of nerve impulses. They are the junctions between neurons.
Difference between sensory and motor nerve?
Sensory neurons have their cell bodies in the dorsal ganglion at the one or two segemental levels from the dendrite entry. They make a synapse onto interneurons in spinal cord. Motor neurons have their cell bodies in the spinal cord.
What is the fatty materiel that covers the axon and helps with nerve impulses?
It is called as myelin sheath. It acts as an insulator of the electrical wire. It is made up of cells.
What Part of a neuron acts as a receptor?
axon
When a stimulus acts on a neuron it decreases the permeability of the stimulated point of its membrane to sodium ions?
False( When a stimulus acts on a neuron, it increases the permeability of the stimulated point of its membrane to sodium ions. )
What is the role of the myelin sheath?
its the movement of neurons in the body that helps ur digestive system
What is the function of the axon hillock?
An axon hillock is part of a neuron that acts as a bridge between the cell body and the axon. Electrical impulses from the dendrites and cell body are summed at this point, which is then sent down the axon.
The senses acts as the alert system reacting to what?
Stimuli, (also for the rest of the worksheet), eyes detect - light rays, impulses to the brain - optic nerve , ears - sound, balance, nasal - olfactory, molecules, tongue - taste buds, salty and bitter.
The role of the myelin sheath?
The myelin sheath is a protective covering that surrounds nerve fibers and helps in efficient transmission of nerve impulses. It acts as an insulator, speeding up the transmission of signals along the nerves. Damage to the myelin sheath can result in disruptions in nerve signal transmission and lead to conditions such as multiple sclerosis.
How do brain send signals to all parts of the body?
Cerebrum is the part of the brain that acts as coordinating centre. It sends nerve impulses to effectors (ex;muscles) to do work by using the efferent neurons (nerve cells). Impulses travel through nerve system with help neurotransmitters like serotonin and dopamine that carry information from one cell to another. The ammount of neurotransmitter is related to importance and strength of information (resulting in mild to strong pain). However some parts of the body aren't in reach of nerve system and also need some control. That is done by hormones traveling with blood and is much slower than nerves.
What encloses the third ventricle of the brain and acts as a switch board for afferent impulses?
Thalamus
