Nerves

Mirror neurons were first discovered by a group of psychologists and its leader, Giacomo Rizzolatti. They were researching neural activities in macaque monkeys when they came upon the effects of mirror neurons. They discovered that the monkeys' brains released the same neuron when performing an activity but also when observing it, hence the saying, "Monkey see, monkey do." For example, a task involved grabbing food. Their brains released the same neurons while watching the psychologists grab foods. This relationship is due to the effects of mirror neurons.

These neurons naturally allow us to react and imitate our surroundings. Happy people are usually around other happy people. A smile is mirrored by another smile. Feeling someone's pain in a football game even though you are not in the game itself is another example of mirror neuron activities. When children are born, they imitate the actions of others, such as the parents. They develop a schema for when to smile, cross the street, or how to handle food.

Those diagnosed with autism, a social disorder, are an exception. They seem to lack mirror neural activity which explains why they cannot relate with other people. Autistic victims only focus on themselves instead of the actions of others.

acetylcholine

The skin has nerves to detect changes in the external environment. The nerves of the skin can detect heat and cold, pressure, pain, and touch.

it travels through the dendrite to the synaptic terminal to the axon

The psoas nerve is the nerve that innervates the psoas major muscle. It is formed by fibers of spinal nerves L2-L4.

the part that facilitates the the transmission of signals is collectively known as the axon but more peculiarly known as the nerve endings.

The reactions having a great time leaping across synapses is not known well and people take estimates only.

action potential

The nodes Ranvier are spaced equally along the axon because of their function which is to transmit information to the different glands, muscles and neurons. The axon is also called a nerve fiber.

neuron = cell body + dendrites + axons

nerve = axon + schwann cells (peripheral nervous system only)

equivalent term of nerve in the central nervous system is called tracts

neuron is a type of cell

nerve is an anatomical term

By definition stress is when the the percieved demands of a situation outweigh the percieved ability to cope. So effectively you're only ever stressed because you think you're stressed, so just try to approach the situation in a more positive frame of mind. So say the situation was that you had a tone of work and a deadline to meet; instead of thinking "how am I going to do all this?" You think "is this all I have to do?". If you find it so stressful that this approach doesn't work, try venting your frustration by using a stress ball for example. This will help to deal with the emotions that occur as a result of the stress before then weighing up pros and cons, rethinking your approach, and eventually solving the problem that's causing you stress.

X, Number 10- the Vagus Nerve is the one that is connected with abdominal organs."The vagus nerve (n. vagus) (X pair) is mixed. Its motor fibers from the cells start motor nucleus, and sensitive - sensitive ganglion cells from occurring in the jugular orifice. From the brain of the vagus nerve goes behind the olive tree, and the skull - through the jugular hole and is divided into many branches, bound to the organs of the head, neck, chest and abdominal cavities. "-from my Atlas of Human Anatomy

Yes they are!

repolarization

Myelin is the insulating "sheath" that surrounds nerves in your body. When the myelin breaks down, false signals make it into the nerves, sometimes causing pain, and sometimes causing muscle spasms.

Larger diameter axons conduct impulses more rapidly than axons with a smaller diameter. Larger axons tend to be myelinated and conduct impulses rapidly. Myelin is a substance rich in lipid that forms an electrical insulation layer around the axon. This insulating myelin sheath allows impulses to be transmitted more rapidly then small diameter axons that are nonmyelinated.

A nerve impulse is a pulse of electricity, an action potential that passes along the nerve. The speed at which it travels is called its conduction velocity and in human nerve fibres, this velocity ranges between 1 and 3 metres per second in unmyelinated fibres and between 3 and 120 metres per second in myelinated fibres

Dendrites are the part of a neuron which receives chemical messages (neurotransmitters) through synapses.Mostly the dendrites receive messages from other neurons, but the cell bodies of neurons also receive direct synaptic inputs from other cells.

What_is_the_process_of_a_nervous_impulse_traveling_through_a_neuron

It Does depend on how big the person is because if your little you will have less nerves in your body than a big person so it does depend on how big you are.

Yoga is the body abel to repair damage to the parts of the nervous system

spastic paralysis

affrent , efferent, and inerneurons