0
What is the path of a nerve impulse from your leg to your brain and back to your leg?
Wiki User
∙ 12y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Describe the path a nerve impulse travels throughout your body from stimulus to response?
Brain send the message via nerve impulses involving neurons which use the neuro-transmitter AcetylcholineAcetylcholine- a neurotransmitter released at the neuromuscular junction triggers a muscle action potential, which leads to muscle contraction
Would conduction speed of a nerve fiber be the fastest in a large or small myelinated fiber?
Yes. Myelinated fibers have a myelin sheath around them which keeps the impulse from scattering and on a direct path. This makes the impulse travel faster than unmyelinated fibers.
Why DeNovo path way absent in RBC and brain?
why DeNovo path way absent in R.B.C. and brain?
What is an afferent neuron?
Afferent neurons are those that transmit signals from sensory transducers to the central nervous system (i.e., the spinal cord and the brain). The complementary group of neurons are the efferent neurons that transmit signals from the central nervous system to effectors, that generate a response to the environmental input.
How does the shape of a nerve cell aid in its function?
The nerve cell's thin and dainty shape helps it transmit signals. Also, the "fingers" at the ends help transmit the messages to more than one other nerve cell so the message can reach either the brain or the spinal cord faster. The thin shape also helps keep the message on a straight path and keeps the message from getting confused or mixed up with other messages being transmitted so as to insure the direct and immediate receiving of all the messages. 👍👍👍
What is the path a nerve impulse travels throughout your body from stimulus to response-?
from the point of the impulse to the brain through neuronsAcetylcholine- a neurotransmitter released at the neuromuscular junction triggers a muscle action potential, which leads to muscle contraction2000+words. A+ Answer. 100% Correct.Download the complete answer from following web linkwww.tinyurl.com/stepuponstepEnjoy
What is the path of a reflex impulse?
the path of a refex impulse
Describe the path a nerve impulse travels throughout your body from stimulus to response?
Brain send the message via nerve impulses involving neurons which use the neuro-transmitter AcetylcholineAcetylcholine- a neurotransmitter released at the neuromuscular junction triggers a muscle action potential, which leads to muscle contraction
What is the last step in the path of an impulse?
Hevan
Why transmission at chemical synapses is unidirectional and why is it significant?
ok why is it uni directional. because there are only the receptors for the neurotransmitter on the receiving dendrites and not on the terminating bud. this means that the sodium can only be absorbed into the next nerve cell/brain cell in the line. but sodium released in a nerve impulse that is not absorbed into the next cell is asimilated back into the original terminating bud for reuse.as for why this is important. im speculating here but it means that the impulse can only go down the intended path and cannot go backwards in the chain.*addition*Uni-directionality is a function of the asymmetry of the synaptic cleft. Exocytosis of the neurotransmitter only occurs from the presynaptic terminal and is received at the postsynaptic receptors to cause initiation of the next impulse (Ca++ carried in dendrons). Although there are receptors on the presynaptic membrane, these are not depolarizing but inhibit further neurotransmitter release. Since the postsynaptic membrane does not release neurotransmitters and the receptors on the presynaptic membrane (auto-receptors) are not depolarising, the impulse is not back propagated.Uni-directionality of the impulse also occurs due to the characteristic membrane potential changes caused by the action potential. The hyper-polarisation of the nerve section caused by K+ efflux (repolarising and then hyper-polarising the nerve as the channels are slow to close), allows for the resetting of Na+ channels. This period (and slightly beforehand when the Na+ channels inactivate) is called the refractory period. Not only does this stop another impulse passing along the neurone, but the impulse can not pass backwards either. NB: local currents in nerves will travel in both directions, but since the previous section of the nerve has inactivated Na+ channels and is undergoing a period of hyper-polarisation, the impulse will not be back propagated.Uni-directionality is crucial to allow for the transmission of discrete impulses that can be interpreted by the brain as signals rather than an entire nerve depolarisation (which is not an impulse at all).So:Uni-directionality due to:asymmetry of cleftNa+ inactivationK+ efflux hyperpolarisationUni-directionality important because:allows for discrete impulses
Can nausea be caused from a pinched nerve in the cervical spine?
Yes. Nausea can be caused by entrapment or irritation of the vagus nerve which itself travels a long meandering path from the brain to deep within the gut.
Which statement correctly describes the path that an electrical impulse would take after someone touched a hot pot?
The signal travels though the nerve endings in the hand to the spinal cord. From there, it reaches the brain and in less than one second, your body realizes the pot is hot, causing you to react by quickly removing your hand from the hot pot.
Would conduction speed of a nerve fiber be the fastest in a large or small myelinated fiber?
Yes. Myelinated fibers have a myelin sheath around them which keeps the impulse from scattering and on a direct path. This makes the impulse travel faster than unmyelinated fibers.
What is the path that nervous impulse takes through the nervous system?
sensory neurone --> enters spinal cord --> relay neurone --> brain(is not a reflex action) or motor neurone(if action is reflex)
Trace the path of an impulse in a reflex act?
i dont know the answer
Describe the path a nerve impulse travels through?
When an impulse travels to the brain, it is first received by sensory receptors, then sent through the neurons by an electrical current. When the neuron receives the signal from a sensory receptor or from another neuron, the nucleus processes the impulse and then sends it down the axon. When a neuron is resting, the inside of the cell has a negative charge caused by active transport of NA and K molecules. This is called the resting potential. When the impulse hits the axon, the electricity causes NA pumps to open, allowing a flow of positively charged the molecule into the cell, causing the charges to switch. This is called the action potential. As the impulse passes, the K pumps open, restoring the original charge. When the impulse reached the end of the axon, neurotransmitters chemically pass the impulse to the next neuron. ;
What carries electrical impulses from the ear to the brain?
sound waves enter the ear canal and cause the eardrum to vibrate.VIBRATIONS pass through 3 connected bones in the middle earThis motion SETS FLUID MOVING in the inner ear.Moving fluid bends thousands of delicate hair-like cells which convert the vibrations into NERVE IMPULSES.Nerve impulses are CARRIED to the brain by the auditory nerveIn the brain, these impulses are CONVERTED into what we "hear" as sound.
