0
Nerves
Nerves are thread-like structures that form a network of pathways that transmit information from the brain to the body and the body to the brain, in the form of electrical impulses.
1,605 Questions
Can rheobase be a threshold stimulus?
Yes, it can be because threshold and rheobase both are the voltage required to generate an action potential. The difference lies in that the treshold can be a voltage higher than rheobase.
TENS
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 neurons
Acetylcholine- a neurotransmitter released at the neuromuscular junction triggers a muscle action potential, which leads to muscle contraction
2000+words. A+ Answer. 100% Correct.
Download the complete answer from following web link
www.tinyurl.com/stepuponstep
Enjoy
What accounts for the resting membrane potential seen in unstimulated nerve and muscle cells?
Sodium-potassium pump
Yes you would report it separately.
How to calculate the speed of propagation of the nerve impulse in a nerve fiber?
The velocity of nerve conduction is usually assessed by dissecting out a nerve fiber from an animal such as a frog. The nerve is placed in a chamber containing stimulating and recording electrodes. The responses of the nerve can be monitored using an oscilloscope. More detail on this procedure can be found in the related link.
What affect does lowering extracellular calcium have on the resting membrane potential of a neuron?
Low calcium levels in the extracellular fluid increase the permeability of neuronal membranes to sodium ions, causing a progressive depolarization, which increases the possibility of action potentials. These action potentials may be spontaneously generated, causing contraction of skeletal muscles (tetany).
What are effects of damage to lower neuron?
Damage to lower motor neurons can lead to muscle weakness, atrophy, and fasciculations due to the loss of direct connection between the spinal cord and muscles. Patients may experience decreased muscle tone and reflexes, resulting in flaccid paralysis. Additionally, the affected muscles may become incapable of voluntary movement, significantly impacting mobility and overall function.
What is gap between pedicles of podocytes called?
Filtration Slits.
They allow water, glucose, vitamins, amino acids, small plamsa proteins, ammonia, urea, and ions to pass.
you can have a disease of that adnormality event in your Nervous system
What mechanism helps keep the neuron membrane at its resting potential?
The resting membrane potential for a nerve cell is usually between -60mV to -75mV. This means that the inside of the cell is between 60 and 75 millivolts more negative than the outside of the cell.
Keeping this level of negativity is chiefly accomplished by controlling the concentration of positive sodium (Na+) and potassium (K+) ions within the cell. Generally, Na+ will try to enter the cell and K+ will try to leave the cell. They can do this over time because the channels they use to pass through the cell membrane are leaky.
Therefore the cell needs to actively pump Na+ out and K+ in. A special group of proteins in the nerve cell membrane compose the sodium-potassium pump (Na/K pump). This pump does the job of pumping Na+ out and K+ in. However, because we want to keep the inside of the cell more negative than the outside, the pump generally pumps out three Na+ ions for every two K+ ions it brings in to the cell. Since both Na+ and K+ are positively charged ions, this means the pump brings in only two positively charged particles into the cell for every three positively charged particles it removes. Thus the resting membrane potential remains negative.
What is an auditory stimalation?
Auditory stimulation is stimulation by sound. An example would be your reaction to someone sneaking up behind you and loudly clapping their hands. The stimulation would be the sound. Your reaction would probably be to become startled or jump.
