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nerves carrying just sensory fibers are referred to as sensory and or what nerves?
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Is the glossopharyngeal nerve the only cranial nerve that contains sensory fibers?
no
Which cranial nerves carries only sensory information?
The question is asking what three cranial nerves are purely sensory in their function. Some relevant terms here are olfactory, optic, and auditory or vestibucochlear or acoustic nerves. The only three cranial nerves that are pure sensory in function are cranial nerve #1 : the olfactory nerve (smell), cranial nerve #2 : the optic nerve (sight), and cranial nerve #8 : the auditory/vestibucochlear/acoustic nerve (hearing).
Is the optic nerve a sensory or motor nerve?
The optic nerve is a cranial nerve (CN II) that sends special somatic afferent (sensory) fibers to the lateral geniculate of the thalamus. Here, they synapse and continue via optic radiations to the primary visual cortex of the brain. The motor portion of the eye is controlled by cranial nerves as well only they are: Oculomotor (CN III), Trochlear (CN IV), and Abducens (CN VI); there is also some sympathetic innervation (not from cranial nerves) that cause pupillary dialation.
What is mixed neuron?
Mixed nerve is a nerve that carry all the motor function, sensory function and the autonomic function in a single fiber. Spinal nerve is the example of the mixed nerve. Some of the Cranial nerve on the other hand is not the mixed nerve as it only has one property which is either sensory or motor function. http://www.answers.com/main/ntquery?s=spinal+nerve&gwp=13
What is the difference between foot drop due to sciatic nerve injury and common peroneal nerve injury?
no difference except for the sensory supply. if you damage your sciatic nerve, the sensory and muscle supply above the knee also lost as the sciatic nerve is damage. This is because common peroneal nerve is the brach of sciatic and it is at level of your knee. Only muscle and sensory below the knee level will be affected if you damage the common peroneal nerve. However the condition of foot drop would be the same
Is the glossopharyngeal nerve the only nerve that contains sensory fibers?
no
Is the glossopharyngeal nerve the only cranial nerve that contains sensory fibers?
no
Which cranial nerves carries only sensory information?
The question is asking what three cranial nerves are purely sensory in their function. Some relevant terms here are olfactory, optic, and auditory or vestibucochlear or acoustic nerves. The only three cranial nerves that are pure sensory in function are cranial nerve #1 : the olfactory nerve (smell), cranial nerve #2 : the optic nerve (sight), and cranial nerve #8 : the auditory/vestibucochlear/acoustic nerve (hearing).
What is the optic nerve?
I don't know but you are getting on my nerves! Well I do know. The optic nerve is the second cranial nerve and carries information from the eyes into the brain. It does not have any control over the movement of the eyes as this comes from other nerves it only takes special sensory information on the images that the retina is receiving back to the brain to be processed. The optic nerve contains approximately 1.2 million neurons.
What part of a spinal nerve contains only efferent fibers?
The ventral root of the spinal nerve has the efferent fibers and the dorsal root has the afferent. Prior to joining each other in the spine they each consist of only those fibers.
The part of a spinal nerve that contains only sensory neurons is the?
The part of a spinal nerve that contains only sensory neurons is called the ventral root. There's also the axons of motor neurons and axons of sensory neurons.
Which of the following types of neurons carries impulses away from the CNS?
They are called as motor neurons. They are same like sensory neurons. Only difference the direction of the nerve impulse. The nerve impulse travel from dendrites to body to axon to axon terminals.
Is the optic nerve a sensory or motor nerve?
The optic nerve is a cranial nerve (CN II) that sends special somatic afferent (sensory) fibers to the lateral geniculate of the thalamus. Here, they synapse and continue via optic radiations to the primary visual cortex of the brain. The motor portion of the eye is controlled by cranial nerves as well only they are: Oculomotor (CN III), Trochlear (CN IV), and Abducens (CN VI); there is also some sympathetic innervation (not from cranial nerves) that cause pupillary dialation.
Is the posterior interosseous nerve a cranial nerve or a spinal nerve?
what does ninth cranial nerve control? glossopharyngeal nerve is a mixed nerve, it has sensory and motor part. the sensory is at the poserior 1/3 of the tongue. It also is part of the pharyngeal plexus. (9,10,11) The motor part of the nerve ONLY supply the stylopharyngeus muscle!
What are nerves carrying impulses from the sense organs called?
Sensory nerves, or the receptor nerves, as they are only made up of sensory neurons. Receptors are the specialised structures at the end of the sensory nerves that receive the stimuli and convert it into an electrical signal to be conducted by the nerve as a nerve impulse.
What is mixed neuron?
Mixed nerve is a nerve that carry all the motor function, sensory function and the autonomic function in a single fiber. Spinal nerve is the example of the mixed nerve. Some of the Cranial nerve on the other hand is not the mixed nerve as it only has one property which is either sensory or motor function. http://www.answers.com/main/ntquery?s=spinal+nerve&gwp=13
What type of nerves fibers make of each of the following sensory nerves?
Well, there are really only three types of fibers, but they all have different sub-classes to them. A, B, and C. A and B fibers are myelinated, and C fibers are unmyelinated. A fibers are broken down further by conduction velocity into 4 main groups, alpha, beta, gamma, and delta. In general a chart of these fibers would look something like this..A(alpha), largest and fastest velocity, acts as motor and sensory fibersA(beta), next largest, acts as motor and sensory.A(gama), next largest, acts as motor only.A(delta), next largest, acts as sensory only.B, smaller than A fibers, only acts a motor.C, smallest, acts as motor and sensory. In general, the A class of fibers are related to muscles(extrafusal and intrafusal fibers), A(delta) sensory fibers relay touch, pressure, pain, and temp, B motor fibers are for the autonomic system, while C sensory fibers are also for pain and temp. Note. Sometimes the sensory fibers are classified by a roman numeral system from I to IV. They are the same fibers, just numbered differently. They look like this... A(alpha) = IaA(alpha) = IbA(beta) = IIA(delta) = IIIC = IV Hope this helps...Daniel {| |- | A 1-20 5-120 0.3-0.5 B
