The main factors affecting birth are:
Age.
Health.
Heredity.
Ovulation cycle.
Location.
Miscarriage
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.
Answer:
The correct answer is option "C. Emotions are feelings that are triggered by thoughts or events."
Explanation:
Emotions are feelings that can be triggered by thoughts because emotion on its own is a response. Emotions can show feelings which could also be the product of thoughts. For example, the thought of one passing an exam could trigger an emotional feeling if the goal is achieved, which is evident when one is happy. That emotion could also turn to an emotional feeling of sadness if one fails the exam. Two individuals having the same feeling about something could have different emotions because their thoughts are different. Emotions might be different for similar situations and emotions could also be triggered by reflexes. For example, a child that sees a snake and reacted emotionally whether positively or negatively.
Emotions could also be triggered by events either positively or negatively. Someone could lose control of his or her emotions by reacting to events with feelings like depression, suicidal thoughts.
B. Walk through it with them
Suicide is not something to joke about. Which is why if your friend is going through some tough times considering it. You should persuade them not to do it.
Alcholicism kills brain cells and two suggestics would be to go to a rehab or speak to a therapist
