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The corpus callosum? I have never heard of one growing back together after being severed. In fact, these people are used in split-brain studies.
All nerves in the body are connected by synapses to the ganglia in the spinal cord to where the travel back up to the brain
The action is the finger pushing the nose. The reaction is the nose pushing back on the finger.
Reflex action.
Why would you eat your finger? That is just weird. No you would not grow it back.
i dont no
This is a medical procedure. The phlange has to be realigned, the muscle and connective tissue has to be reconnected, the blood vessels have to be stitched back together and the nerves are pretty much on their own. Loss of mobility, sensation and natural appearance is to be expected.
The bone just regenerates, don't worry. The skin may take up to a week to grow back, though. At least that's how it's always worked with me
Yes. Both sensation and motion are controlled by nerves. If the nerves used to control sensation/motion are severed, the part of the body that was controlled by those nerves will no longer sense/move. Damaging the nerve can also lead to this, but is more likely to heal. In the peripheral nervous system, nerves can grow back, but they have to be redeveloped and this is not always possible (you weren't born with the motor control to write and may never get it back in a hand with damaged nerves). Your brain is made up of nerves, which then project down your spine, and from your spine branch out into the rest of your body. When a nerve is severed, the portion that is no longer connected to the spine/brain no longer works - resulting in paralysis. This means that a body part would only be paralyzed distal (down/out, further from the center) to the stab wound. If a nerve is simply damaged, then the problem lay in its ability to pass on a message.
Peripheral neurons are bundled together to make up the 31 pairs.Each pair of nerves is named for the vertebra from which it exits. L1-5. These nerves enter from the lumbar vertebrae of the lower back.
I was in physical therapy for lower back issues and at one point I started having tingling in my 4th and 5th finger and pain shooting down my arms. The PT told me that those nerves are connected to nerves in the shoulder that can be pinched if your shoulder roll forward (aka if you slouch). I don't slouch but my shoulders roll forward and can pinch the nerves. what he told me to do was to lie down on a bed on your back (thinner the better) and spread out your arms like superman then let them fall towards the floor. This opens up the shoulder joint and lets the nerves "breathe". Another exercise is to hold your arms at 90 degrees at your side (like you are doing bicep curls) and push your elbows back like you are trying to touch them behind your back. This strengthens the back muscles that hold your shoulders back. I do this move when i get the tingling and it helps it go away.
Most starfish can regrow a severed arm back if they have enough strength.
The nervous system consists of nerves that transmit impulses back and forth.
L1-5. These nerves enter from the lumbar vertebrae of the lower back.
a nerve is bundled together by neuron fibers. The CELL BODY OF A NERVE or neuron is surrounded by satellite cells.
Ofcourse not, you don't see them, your fingernails can't bleed and the body doesn't see a need to put nerves in it.
The corpus callosum? I have never heard of one growing back together after being severed. In fact, these people are used in split-brain studies.