Dendrites and Axons

Dendrites and Axon are parts of which cell ?

Nissl's granules are located in (a) Cyton and Dendrites (b) Dendrites and Axon (c) Axon and Cyton (d) Axon and Axon terminal

Assertion :- Neuron is the longest cell of human body. Reason:- It contain dendrites and axon.

(a) Draw a diagram of nerve cell and label its parts. (b) In which direction the impulse travels in dendrites and axon ?

Assertion : A neuron is a microscopic structure composed of three major parts, namely, cell body, dendrites and axon. Reason : Short fibres which branch repeatedly and project out of the cell body are called axons.

A neuron is a microscopic structure composed of three major parts, namely, cell body, dendrites and axon. There are two types of axons, namely, myelinated, and nonmyelinated. Which of the following is true for nerve ? i. The myelinated nerve fibres are enveloped with Schwann cells ii. Schwann cells form a myelin sheath around the axom iii. The gaps between two adjacent myelin sheaths are called nodes of Ranvier. iv.Myelinated nerve fibres are found in autonomous and the somatic neural systems v. Unmyelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath around the axon. vi. Unmyelinated nerve fibre is commonly found in spinal and cranial nerves