<span>It depends on what the expectations of the conversation are as well as what roles these people fulfill in your life. For example, you might have a friend from soccer that you might not be able to confide in about personal issues. Generally, its confiding in individuals who fit all of these roles that would make up a coping mechanism for stress and change - If you did not have any friends and only conselors and parents, you might have an inadequate system for dealing with life's problems.
In addition to having such a system in place, its important that these roles provide constructive input. What good is a counselor or friend if, after explaining your problem, they do not provide their opinion? If they do provide their opinion, what good is it if its of little to no value? In short, yes, talking with friends/counselors/parents is a good way to deal with stress and change but ONLY if these individuals are fulfilling the roles in a constructive manner.</span>
Answer:
As the social facilitation refers to the improvement of performance produced by the presence of others, The Olympic bicycle racer who goes faster when is racing against a person rather than a clock is the best example of social facilitation.
Axons are long nerve processes which carry nerve impulses from the Soma to other neurons, they vary in length but can become almost as long as half of the human body.
The soma (body) of the neuron contains the nucleus which acts as the cell's control centre, these contain many small neurofibrils which project from the nucleus into the dendrites.
Dendrites are short, thick processes which branch out of the soma in a tree like manor. They conduct nerve impulses to the soma.
The three categories of neurons:
Afferent (Sensory) Neurons have the dendrites connected to receptors such as the eyes, ears etc. These receptors change the information they receive into electrical impulses that are transmitted to other neurons. In sensory neurons the axons are connected to other neurons.
Efferent (Motor) Neurons have the dendrites connected to other neurons, the axons are connected to effectors. Effectors are either glands or a muscle cell that is the receiving end of the nerve impulse. The nerve, when excited will cause the effector to react (move, contract, or secrete etc).
Internuncial Neurons have both the dendrites and the axons are connected to other neurons. They are sometimes referred to as connector neurons.
Internuncial neurons are found throughout the body, but especially in the spinal cord and brain.
Properties and characteristics of Neurons:
Normally the electrical impulses (messages) travel through a neuron in only one direction.
The axon may be surrounded by a 'coat' of lipids (fats) and proteins known as the myelin sheath which acts as an insulator.
Neurons are specialist cells that have lost the ability to reproduce themselves. Once the soma of a neuron has died the entire neuron dies, and can never be replaced.
Repair of damaged neurons only occurs in myelinated neurons.
white matter are coloured by myelin, consisting of many neurons supported by neuroglia.
grey matter is soma and dendrites or bundles of unmyelinated axons and neuralgia.
It is false that organic foods tend to have higher levels of nutrients
than nonorganic foods. They just come from a different source, but that
doesn't mean that their nutritive value is decreased, regardless of
where they are coming from. Both organic and nonorganic foods have
certain standards that they have to meet before becoming suitable for
human consumption.
The <em>four chambers</em> of the human heart are the left and right ventricles and the left and right atria (singular- atrium).
