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What else can I help you with?
Is your optic nerve atached to your retina?
yes it is, and the optic nerve is attached to your brain.
Which cranial nerve is used in reading the paper?
The main nerve required would be the optic nerve (II), although you would also use the ocular motor nerve (III) to move the eyes. Other cranial nerves involved are: Trochlear nerve (IV) and Abducens nerve (VI).
What part of the eye contains no rods or cones?
Many parts actually but if you're talking about the back of the eye (retina) then it would be the optic disk where all the ganglion cell axons exit the back of the eye to form the optic nerve.
What would be the most immediate effect if the phrenic nerve were severed?
Severing the phrenic nerve would result in paralysis of the diaphragm, the main muscle responsible for breathing. This would lead to immediate difficulty in breathing as the diaphragm plays a crucial role in the process of respiration.
What is loss If the anterior root of a spinal nerve is severed?
The anterior or ventral roots carry motor or efferent information from motoneurons in the anterior horn to muscles. This is as opposed to the dorsal roots that convey sensory or afferent informaiton from the periphery to the dorsal horns of the spinal cord. This is not to be confused with ventral rami that subserve intrinsic muscles of the back and neck. Therefore if a ventral root is severed or cut there would be a loss on motor function to muscles in the distribution of that root (called a myotome).
Which nerve would be found in the retina of the eye?
The optic nerve.
Is your optic nerve atached to your retina?
yes it is, and the optic nerve is attached to your brain.
Would biceps femoris be paralyzed if the sciatic nerve was severed?
yes
Which cranial nerve is used in reading the paper?
The main nerve required would be the optic nerve (II), although you would also use the ocular motor nerve (III) to move the eyes. Other cranial nerves involved are: Trochlear nerve (IV) and Abducens nerve (VI).
3 Describe how would you identify the optic nerve in the dissection?
To identify the optic nerve in a dissection, locate the eyeball and trace the nerve posteriorly, towards the brain. The optic nerve is typically found at the back of the eyeball, exiting through the optic disc in the retina. It appears as a white, cylindrical structure that connects the eye to the brain.
What If the dorsal root of a spinal nerve is severed?
Sensory input would be blocked.
Where in the human body would you find the optic nerve?
from the back of the eye to the brain.
What would happen if the optic chiasm was cut?
If the optic chiasm is cut, it can result in visual field defects such as loss of peripheral vision on the outer sides of both eyes, known as bitemporal hemianopia. This occurs because the crossing of optic nerve fibers at the chiasm is disrupted, affecting information from both eyes.
Why would you lose color vision in one eye?
Inflammation of the optic nerve
What part of the eye contains no rods or cones?
Many parts actually but if you're talking about the back of the eye (retina) then it would be the optic disk where all the ganglion cell axons exit the back of the eye to form the optic nerve.
Which carnial nerves are purely sensory?
Actually, there are three cranial nerves that are completely sensory: Olfactory nerve, Optic nerve and the Vestibulocohlear nerve. The Optic nerve is responsible for sensory information for vision, the Olfactory nerve is responsible for sensory information coming from the nose and the Vestibulocohlear (the craziest word to spell) involves sensory information for hearing (get it?- cohlear, ear) and equilibrium.
What muscle is paralyzed if sciatic nerve is severed?
If the sciatic nerve is severed, the muscles controlled by it would be affected. These include the muscles of the lower leg and foot, such as the hamstrings, calf muscles, and muscles that control movement of the foot and toes. Injury to the sciatic nerve can result in weakness or paralysis of these muscles on the affected side.
