EVERYDAY SCIENCE

SCIENCE

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which part of the neuron is a fatty layer that insulates the axon and sometimes a dendrite?
A
Cell body
B
Dendrites
C
Axon
D
Myelin sheath
Explanation: 

Detailed explanation-1: -A myelin sheath is a sleeve (sheath) that’s wrapped around each nerve cell (neurons). It’s a protective layer of fat (lipids) and protein that coats the main “body” section of a neuron called the axon.

Detailed explanation-2: -Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances.

Detailed explanation-3: -Glial cells are the key element for supporting the messages neurons send and receive all over the body. Much like the insulation around the wires in electrical systems, glial cells form a membraneous sheath surrounding axons called myelin, thereby insulating the axon.

Detailed explanation-4: -The long slender projection of a neuron, also known as an axon, which conducts impulse away from the cell body remains covered by a fatty sheath known as myelin sheath.

Detailed explanation-5: -Myelin is made by oligodendrocytes in the central nervous system (CNS) and Schwann cells in the peripheral nervous system (PNS).

There is 1 question to complete.