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The frog schiatic nerve gives a graded response because the nerve is a bundle of axons and not a single axon (thus it does not show the all or none response of an axon-either generating an action potential or not). If one axon is generating an action potential then a small nerve impulse is witnessed, if all axons are simultaneously generating action potentials then a large nerve impulse is witnessed. Thus the nerve impulse is graded (it can be none, small, medium, large, larger, maximal).
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What has the author Horace Olin Parrack written?
Horace Olin Parrack has written: 'Excitability of the excised and circulated frog's sciatic nerve' -- subject(s): Electrophysiology, Sciatic nerve
Which among the frog's spinal nerves is the largest?
YES. Frogs do have spinal cords.
What are some parts of the frog's nervous system?
Olfactory nerve, Optic nerve, Nasal sack, Trigeminal nerve, Gasserian ganglion, Facial nerve, Auditory nerve, Tympanic membrane, Glossopharyngeal nerve, pneumogastric nerve, First spinal nerve, Branchial enlargement, Branchial nerve, Third spinal nerve, fourth spinal nerve, fifth spinal nerve, sixth spinal nerve, seventh spinal nerve, eighth spinal nerve, ninth spinal nerve, tenth spinal nerve, Femoral nerve, Sciatic nerve, Sympathetic nerve trunk, Lumbar enlargement, Sympathetic ganglia, and Filum terminale.
Would you use a myelinated frog nerve an unmyelinated rat nerve or a myelinated rat nerve if you were studying nerve physiology in the laboratory?
tough one to answer really, as all three will give you different nerve conduction velocitys to a stimulus. the unmyelinated rat nerve will obviously be the least conductive, the frog nerve more conductive than that and the myelinated rat nerve more conductive again. But in general, tha main consensus would use a frog nerve, as the frog has been the choice of many a physiology lab for who knows how long.
Which parts of the frog's nervous system can be observed in its abdominal cavity and hind legs?
In the abdominal cavity you should be able to observe vague nerves which carry nerve impulses to the liver, heart, lungs, pancreas, intestine, and stomach. Sympathetic ganglia may also be observed. In the hind legs you should be able to observe the sciatic nerve.
Is caviar fish eggs or frog eggs?
Caviar comes from fish and is graded depending on which fish it came from.
What proportion of the frog nerve fibers were excited to produce this maximal response?
To determine the proportion of frog nerve fibers excited to produce a maximal response, one would typically analyze the experimental data, such as the number of fibers stimulated compared to the total number of fibers. This proportion can vary depending on the specific conditions of the experiment and the methodology used. Generally, maximal responses are achieved when a sufficient number of fibers are activated, but precise values would depend on the specific details of the study in question.
What ability would the frog lose if its spinal nerve extending to the leg were cut and why?
if its dead, nothing.if its alive, that leg will be permanently paralyzed.it wouldnt be able to jump highthere is no answer currently.it's speechWithout the nerve to activate the leg muscles, a frog could not walk, hop, or jump using the affected leg.jumpingIn any vertebrates, all coordinated response movements and actions would be disabled from the point the nerve was injured and down. Severed spinal damage will kill the animal.it would lose most of the ability to jump and if it were cut far enought the frog could dieno jumpit would kill the frog because if any nerves are cut it wount be able to do any thing
What frog is highly poisonous and carries enough nerve toxin to kill 2500 people?
well itz probaly going to have to be the poisin dart frog well itz probaly going to have to be the poisin dart frog
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.
Why is the amplitude of the compound action potential recorded from the frog sciatic nerve increased when the voltage of the stimulus was increased above the threshold value?
Increasing the stimulus voltage above the threshold value results in recruiting more nerve fibers to generate action potentials. This leads to a greater number of action potentials being generated simultaneously along the nerve, resulting in a larger compound action potential amplitude being recorded.
What ability would a frog lose if the spinal nerve were cut?
If a frog's spinal nerve were cut, it would lose the ability to coordinate movement and respond effectively to stimuli. This would impair its locomotion, preventing it from jumping or swimming properly. Additionally, the frog may also lose sensory functions below the cut level, affecting its ability to perceive its environment. Overall, the frog would experience significant motor and sensory deficits.
