NEET BIOLOGY

Detailed explanation-1: -The longest axons of the human body are those that make up the sciatic nerve where the length can exceed one meter. Furthermore, compared to projecting neurons, interneurons usually have smaller soma, fewer organelles, and a reduced amount of cytoplasm (axoplasm).

Detailed explanation-2: -Depending on the type of neuron, axons greatly vary in length-many are just a millimetre or so, but the longest ones, such as those that go from the brain down the spinal cord, can extend for more than a metre.

Detailed explanation-3: -Some axons can extend up to one meter or more while others extend as little as one millimeter. The longest axons in the human body are those of the sciatic nerve, which run from the base of the spinal cord to the big toe of each foot. The diameter of axons is also variable.

Detailed explanation-4: -In the neurons that make up the nerves running from the spinal cord to your toes, the axons can be as long as three feet! Longer axons are usually covered with a myelin sheath, a series of fatty cells which have wrapped around an axon many times. These make the axon look like a necklace of sausage-shaped beads.