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 - True.
Explanation:
Stretching is one of the most essential routines of the exercise routine or program that helps in avoid injuries and relax muscles that reduce muscle tension and increase flexibility in an individual.
Stretching is an exercise includes specific muscle or tendon that is deliberately stretched or flexed in order to promote the muscles to develop elasticity.
Thus, the correct answer is - True.
If a child can’t rely on his carers to look after him and respond consistently, this has been noted to have potentially very serious and damaging consequences for the adult that child will become. If adults are seriously inconsistent or unresponsive in their behaviour to the child, he may become very anxious as he is not able to predict how the adults around him will act; the child may even give up trying to get his needs met.Children whose caregivers respond sensitively to the child’s needs at times of distress and fear in infancy and early childhood develop secure attachments to their primary caregivers. These children can also use their caregivers as a secure base from which to explore their environment. They have better outcomes than non-securely attached children in social and emotional development, educational achievement and mental health. Early attachment relations are thought to be crucial for later social relationships and for the development of capacities for emotional and stress regulation, self-control and metallisation…
