Introduction:
A neuron or nerve cell is the longest cell of the human body. Its function is to carry and transmit electrical signals. All the neurons together with brain and spinal cord constitute the nervous system of the body.
Answer to Problem 1TY
Correct answer:
Dendrite is the part of neuron which receives message from other cells. Therefore, option b. is correct.
Option b. is given as “dendrite”.
Explanation of Solution
Reasons for the correct statement:
A neuron is composed of an axon, a cell body, and dendrites. Dendrites are branched extensions present on a nerve cell. Their role is to receive electrical impulses from other cells.
Hence, option b. is correct.
Reasons for the incorrect statements:
Option a. is given as “axon”.
Axon is basically the longest dendrite of a neuron. It does not receive messages from other cells, but it conducts electrical impulses. Hence, it is a wrong answer.
Option c. is given as “soma”.
Soma refers to the cell body of the neuron. It also does not receive electrical signals from other cells. Hence, it is a wrong answer.
Option d. is given as “myelin”.
Myelin is a sheath that covers the axon. It increases the speed of signal transmission. Hence, it is a wrong answer.
Hence, options a., c., and d. are incorrect.
Dendrites receive messages or electrical impulses from other cells.
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Chapter 2 Solutions
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