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The sternocleidomastoid muscle (SCM) and the trapezius muscle are innervated by the accessory nerve (CN XI)
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What two prominent muscles have been affected if your right accessory nerve was severed in an accident and there was muscle atrophy?
When a nerve is cut, the muscle that communicates with the brain along that nerve no longer functions. this results in atrophy, the muscle thinning. It may not be repairable since the nerves degenerate when they get cut. If the surgeon says a nerve graft is doable, then there can be good sucess with a repair.
What cranial nerve controls neck and shoulder movements?
Cranial Nerve XI (eleven) is know as the spinal accessory nerve and is responsible for the action of shoulder shrugging by way of its innervation of the trapezius muscle. The function of this cranial nerve may also be tested by asking the patient to turn their head to the left and right and by resisting this motion by placing your hand on their chin (the muscle tested in this second scenario is the Sternocleidomastoid, SCM).
What if there is something wrong with your visionwhich part of the brain do you think will be affected?
It could be the optic nerve. You should see an ophthalmologist right away.
How do you have 100 percent full control of your hands?
People who have no medical conditions have the right nerve endings, bone structure and muscles for this 100% control.
What nerve causes flexion and supination at the right elbow joint?
The flexor muscles, including the biceps brachii which is both a flexor and supinator, are innervated by the musculocutaneous nerve. The supinator muscle, which assists the biceps brachii in supination, is innervated by the deep branch of the radial nerve.
Which branchial arch forms the bones muscles and nerve of the face and the lower lip?
First branchial arch also known as the mandibular arch is the right answer.
What does bilateral innervation of cranial nerves mean?
Cranial nerves that have a motor function tend to be bilaterally innervated. In other words, the right accessory nerve (XI) receives input from both the right and the left motor cortex. The same goes for the left accessory nerve.This is a handy advantage in strokes, since upper motor neurone lesions must therefore be bilateral in order to cause a deficit.The one major exception to this rule is the facial nerve (VII). Only the forehead muscles are bilaterally innervated, so even a unilateral upper motor neurone lesion can cause mouth drooping, etc. However, this can still often be differentiated from a lower motor neurone lesion, which will not spare the forehead.
What is the orbital cavity?
Besides the eye itself, there are the four muscles that move the eye and the accessory structures of the eye which include the eyelids and superficial epithelium of the eye, and the structures associated with the production, secretion, and removal of tears.The ophthalmic artery and veins and cranial nerves III, IV and V which move the muscles of the eye. The optic nerve (for sight) that leaves the back of the eye.
How do the liver and skeletal muscles handle a carbohydrate overload?
It all depends on what you mean by an overload. If you eat many cookies, the carbohydrates you don't use right away are stored as fat. The liver and muscles are not directly affected.
Your novacaine has not worn off in a week and the right side of your tongue is still numb what should you do?
That doesn't sound right at all. Contact your dentist or doctor immediately. It sounds like a nerve may be affected.
How is the light optic tract anatomically different from the right optic nerve?
The right optic tract carries information from the left hand side of both eyes visual field, where-as the right optic nerve carries information solely from the right had eye. After the optic nerves from both eyes perform this partial intersection (in the optic chiasm) they then become known as the optic tract. Hope this helps.
Can cycling reduce osteoarthritis?
You have to be careful that you do the right sort of exercise when dealing with arthritic joints. it depend on what joints are affected. having strong muscles surrounding affected joints is a good ide however you have to achieve them without damaging the joint further.
