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Are the nodes of ranvier found at a regular interval only on myelinated peripheral nerve fibers?
No, the nodes of Ranvier are found at regular intervals on both myelinated central and peripheral nerve fibers. They are gaps in the myelin sheath where the axon is exposed, allowing for the propagation of action potentials along the nerve fiber.
List the reasons for performing a peripheral nerve functions assessment?
A peripheral nerve function test is performed to test the nerve function in the peripheral nerve. This test is often performed to when there is pain or weakness in the limbs.
What do nerve conduction velocity studies?
Nerve conduction velocity studies are diagnostic tests that measure the speed at which electrical impulses travel along nerves. They help to evaluate nerve damage, identify specific nerve disorders, and determine the extent and location of nerve injury. These tests are commonly used to diagnose conditions like carpal tunnel syndrome, peripheral neuropathy, and nerve injuries.
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 is a Nerve conduction velocity test?
A nerve conduction velocity test is a diagnostic procedure used to evaluate the function of nerves by measuring how quickly electrical impulses travel along them. It is commonly used to diagnose nerve damage or disorders such as carpal tunnel syndrome or peripheral neuropathy.
Does the peripheral nervous system have sensory nerve cells and motor nerve cells.?
Yes, the peripheral nervous system has both sensory and motor nerve cells
What is the medical term meaning Benign tumor of the peripheral nerve sheath?
A benign peripheral nerve sheath tumor is a schwannoma or neurofibroma.
What is the cost of peripheral nerve surgery?
there is no such thing
Providing a pathway for the transmission of nerve impulses is the responsibility of the?
peripheral nerve system
Why a peripheral nerve such as the sciatic nerve can contain nerve fiber from several spinal nerves?
The reason why a peripheral nerve such as the sciatic nerve can contain nerve fiber from several spinal nerves is owing to nerve plexuses. These are networks of nerves all tangled together and found mostly in the limbs.
Which of the following types of nerve fiber possesses the fastest speed of impulse propagation?
Myelinated A fibers have the fastest speed of impulse propagation among nerve fibers.
What fibers are the most rapid nerve impulses conducted on?
These are nerves in animals. They include central and peripheral; peripheral include somatic and autonomic.
