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the brain
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∙ 14y ago
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During a knee-jerk reflex the nerve impulse is received by the?
The knee-jerk reflex is controlled by the interneurons in the spinal cord.
What is the nerve impulse from your foot to your leg called?
Reflex Arc
Where does the nerve impulse travel from the reflex arc?
The nerve impulse travels through the reflex arc. It travels from the sensor through the sensory neurone, through the spinal cord and motor neurone to the effector muscle.
How is a reflex nerve impulse different than other nerve impulses?
Skeletal muscles interact with the spinal cord
What is the direction of impulse in a neuron?
A nerve impulse travels toward the actual nucleus itself to pass information.
If you accidentally step on a tack with your bare foot the pathway that the nerve impulse takes from your foot to your leg is called?
reflex arc.
When a nerve impulse reaches the end of a motor neuron?
It fulfills its prime function - it turns that muscle ON - for a duration.
What reaches the end of the axon when the neurotransmitter is released and diffuses to the muscle membrane to combine with receptors there?
nerve impulse
What are the subsystems of the autonomic nervous system?
the nerve pathways followed by an impulse during a reflex.
Why does a reflex nerve pathway move faster than a normal nerve transmission?
Reflex nerve pathway is a monosynaptic transmission. There are no interneurons involved. Only the limb that carries the afferent nerve impulse from the stimulus and the efferent motor function for the reflex involved. That is why it is faster. Normal nerve transmission require an interpretation of the impulse by the brain whereas reflex pathways do not. Another reason is because most reflexes from the exteroreceptors travel along myelinated axons (white matter) which carry the impulse faster than other neurons that have unmyelinated axons (grey matter).
When the what reaches the end of the axon the neurotransmitter is released?
When the _____________reaches the ends of the axon the neurotransmitter is released and it diffuses to the muscle cell membrane to combine with receptors there?Sarcolemma
What is the difference between a reflex arc and a normal nerve impulse?
A reflex arc doesn't go all the way up to the brain. Thus it NEVER becomes part of the thought process.
