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).
Horace Olin Parrack has written: 'Excitability of the excised and circulated frog's sciatic nerve' -- subject(s): Electrophysiology, Sciatic nerve
YES. Frogs do have spinal cords.
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.
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.
portal artery or phrenic artery or sciatic artery or renal artery
Caviar comes from fish and is graded depending on which fish it came from.
when the voltage of the stimulus is increased above threshold, it can instantly trigger the action potential into a depolarizing state which will rapidly shoot up above the threshold value.
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
well itz probaly going to have to be the poisin dart frog well itz probaly going to have to be the poisin dart frog
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.
Giggle and try to squirm away is the general response.
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.