Question

Name the part of the neuron.
a. Where information is acquired.
b. Through which information travels as an electric impulse.

Answer 1

The neuron is the part of the nervous system. It helps to transfer the impulse and give response to the stimuli. The sensory neurons on the outer body structures have receptors which receive the signals. Dendrites are the first part of the neuron. The longest part of the neuron formed by the axon. The impulse transferred through neurons is the electric impulse.

Complete answer:
The nervous system in the higher animals is responsible to interpret the response in the body. The neurons or nerve cells are the units of the nervous system. The neurons are mainly of three types: sensory neuron, motor neurons and interneuron. The sensory neurons present on the skin. They have receptors which carry the receptor from the stimulus and transfer it to other neurons.

Neurons have four specialized structures. It helps for sending and receiving of the information. The structure of the neuron tissue includes: dendrites, cell body, nucleus, myelin sheath and axon.

The dendrites contain special receptors to receive the signals. It is the place where the signals are acquired. It transfers the electrical signal to the cell body. The electrical impulse travels through the axon and at the axon terminal various chemicals are present. These electrical signals are changed into chemical signals. The neurotransmitters help to transfer the impulse from one neuron to another. Again the impulse converts into electrical impulse and transfers in the similar manner from one neuron to another.
The process of transfer of impulse from one neuron to another is known as synapses.

Note: The gap between the two neurons is called the synaptic cleft. The motor neuron is present in the spinal cord which helps to perform the reflexes in the body. The reflex action occurs with the help of motor neurons and spinal cord. The impulse from the spinal cord is transferred to the brain to give response. The effectors in the muscles give the response of the impulse transferred from the brain.