If you get a career in any medical field then it's important to know about the functions of the body systems. Knowing about how they work will prepare you for what you need to know when you get that job. Learning these things in school helps prevent you from struggling with your career.
Sexual and reproductive health education is really important in school so that way kids can learn how to avoid getting STD’s and all that. Often when schools poorly teach sexual and reproductive health education, students from that school end up having a poor knowledge on sex and reproduction and they’re more likely to end up having unplanned pregnancies and getting STD’s that could be very dangerous to health. They’re also more likely to be unaware of why they may be experiencing certain health issues from reproductive and sexual-related things.
Answer:
3 1/2
Explanation:
it's a simple calculation actually 3.5 hours * 60 minutes in each hour) equals 210 minutes
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.
