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Doctor insights on: Sciatic Nerve Innervation

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Which nerve innervates the erector spinae?

Which nerve innervates the erector spinae?

Erector spinae nerve: The nerve supply of the erector spinae muscles arises from the posterior branches of the spinal nerves. ...Read more

Nerve (Definition)

The brain and spinal cord communicates with what is occurring in the internal organs and limbs by nerve fibers where are like electrical wires with insulation (myelin) and the "copper" (axon). Within brain and spinal cord these nerves connect to other nerves via synapses on both axons and dendrites. A nerve can carry information regarding sensations, and ...Read more


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Can reflexology irritate sciatic nerve.?

Can reflexology irritate sciatic nerve.?

Thanks for asking!: Any severe stretch or pressure can cause sciatic irritation.Make sure the person doing the treatment is well trained. ...Read more

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Piriformis trapped nerve dangerous?

Piriformis trapped nerve dangerous?

Piriformis sciatica: I'm not sure what you mean by "dangerous". Most cases of piriformis syndrome with intermittent sciatica are painful, but not at all what i'd consider dangerous. As you can see from the image attached, the sciatic nerve can pass behind the muscle or split the muscle (just butt pain then), or one or both parts of the nerve can pierce the muscle which can cause the shooting pain down the leg. ...Read more

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Can spinal nerve impingement cause penile numbness?

Can spinal nerve impingement cause penile numbness?

YES: Damage to the nerves that supply the perineum may result in penile numbness. It is well known that bicycle riding, which is an excellent aerobic exercise, may result in penile numbness. This may result from nerve damage or vascular compression resulting arterial insuffiency, swelling and even blood clots. If you're having numbness your pcp may refer you to a urologist & neurolidt for evaluation. ...Read more

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Optic nerve crushed, optic nerve transplant?

Optic nerve crushed, optic nerve transplant?

No recourse: A crushed optic nerve (how did this happen to you?) causes permanent changes which will alter the vision sometimes severely. There is currently no treatment known for this and a transplant is not possible. A discussion with a neuro-ophthalmologist would be helpful in this situation. ...Read more

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Can nerve damage to sciatic nerves repair/heal itself?

Maybe, maybe not: Nerve pain from sciatica almost always (over 90%) heals itself. Nerve damage is less predictable. Some nerve damage is reversible, but the healing process is very slow - years. ...Read more

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What is denervation of C6 nerve root innervated muscles?

Anatomy: C-6 provides innervation in part to biceps, brachioradialis, wrist flexors, especially flexor carpi ulnas, and radials, Presence of faulty C-6 function could decrease biceps and brachioradialis reflexes in afflicted arm. ...Read more

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Is ilioinguinal nerve the same size as sciatic nerve?Saw mr neurography image of the sciatic nerve.Can ilioinguinal nerve appear that clearly on mrn?

Not likely: The sciatic nerve is anatomically larger than the ilioinguinal nerve. Mrn is not widely available. The ilioinguinal nerve is not as likely to be seen as clearly on mrn as the sciatic nerve. ...Read more

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How many genito femoral nerves innervate the cremaster muscle?A single nerve or multiple?

A nerve: The genitofemoral nerve is a single nerve, about the diameter of a piece of spaghetti. It splits into a genital branch and a femoral branch. In males, the genital branch innervates the cremaster muscle and part of the scrotal skin. As with most nerves large enough to have a name, it is composed of a bunch of nerve fibers, also known as axons. ...Read more

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Can a compressed sciatic nerve cause leg weakness? Specifically the hamstring?

Can a compressed sciatic nerve cause leg weakness? Specifically the hamstring?

Possibly: A compressed sciatic nerve can cause leg weakness. Often pain down the leg is due to a lumbar radiculopathy or irritation to the lumbar nerve roots that make up the sciatic nerve. The distribution of pain depends on which nerve is irritated although pain in the back or leg or "hamstring" is common. See your md if this pain lasts greater than 2 weeks. ...Read more

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Is c5-c6 impingement a pinched nerve?

Is c5-c6 impingement a pinched nerve?

Yeah: Yeah at times you will note on a radiology report that a bone spur (osteophyte), or herniated disc is causing nerve impingement. That is the medical way of stating it is pinching the nerve in question. ...Read more

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Where is your brachial plexus nerve?

Where is your brachial plexus nerve?

Not single nerve: Brachial plexus is a group/cluster of nerves connecting cervical spinal cord and an arm. The major nerves involved include median, ulnar, and radial, but also axillary and supra scapular. The bulk of the plexus itself in located in the shoulder region. ...Read more

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Can a spinal cord stimulator cause pinched nerve ?

If: Placed correctly should help with pinched nerve, sometimes they migrate (leads) go have them checked. ...Read more

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Each peripheral nerve provides what innervation to peripheral structures.?

Good question: I wish I could remember. When I have a question about that, I get out my old anatomy book from med school and look it up. The book is 1100 pages long. I refer to it frequently when I want to relearn what peripheral nerve innervates what structure. For laypeople I recommend Frank Netter's Atlas of Human Anatomy. It's available from Amazon. ...Read more

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Numb scalp due to pinched nerve?

Numb scalp due to pinched nerve?

possibly: If your numbness matches the characteristic distribution of known cutaneous nerves of the scalp, you might be suffering from a neuralgia. Talk to your doctor. ...Read more

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Which nerve from the spine innervates the colon?

You asked for it: Sympathetic fibers from the spinal cord lead to the celiac ganglion (foregut) and superior (midgut) and inferior (hindgut) mesenteric ganglia. Parasympathetic fibers arise from the vagus (innervate the foregut and midgut (through transverse colon)) and the hindgut (pelvic nerves which innervate the descending colon, sigmoid, and rectum). Does that answer your question? ...Read more

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Dr. Michael Kleerekoper
841 doctors shared insights

Sciatic Nerve (Definition)

It is a large ...Read more