What is nissl bodies in neuron?

Nissl bodies (also called Nissl granules Nissl substance or tigroid substance) are discrete granular structures in neurons that consist of rough endoplasmic reticulum, a collection of parallel, membrane-bound cisternae studded with ribosomes on the cystosolic surface of the membranes.

Where is the nissl body on a neuron?

Nissl bodies: Named after the German histologist Nissl, who first described them. They are one of the major characteristics of the neurons. Found in perikarya and in the proximal part of the dendrite.

What color are nissl bodies?

blue
The Cresyl Violet method uses basic aniline dye to stain RNA blue, and is used to highlight important structural features of neurons. The Nissl substance (rough endoplasmic reticulum) appears dark blue due to the staining of ribosomal RNA, giving the cytoplasm a mottled appearance.

What are nissl bodies answer?

Complete Answer: – A Nissl body is a large granular body found in neurons. These granules are of rough endoplasmic reticulum (RER) with rosettes of free ribosomes. – And are the site of protein synthesis. Nissl bodies can be demonstrated by Nissl staining.

What is the function of neurotransmitter Mcq?

Neurotransmitters are activated in response to stress in order to: Encourage effective coping. Attenuate the psychological effect of the stressor. Prepare an individual to adapt to the challenge.

What are the 4 main parts of a neuron?

A neuron has 4 basic parts: the dendrites, the cell body (also called the “soma”), the axon and the axon terminal. Dendrites – Extensions from the neuron cell body that take information to the cell body. Dendrites usually branch close to the cell body.

What used to describe as nissl granules?

Cell body of a nerve cell contains basophilic granules called Nissl’s granules. These granules appear to be cisternae of rough endoplasmic reticulum with numerous attached and free ribosomes. They probably synthesize proteins for the cell.

What is a Nissl body in biology?

The term “Nissl bodies” generally refers to discrete clumps of rough endoplasmic reticulum in nerve cells. Masses of rough endoplasmic reticulum also occur in some non-neuronal cells, where they are referred to as ergastoplasm, basophilic bodies, or chromophilic substance.

What is another name for Nissl substance?

Nissl bodies – Synonym(s): Nissl substance. Nissl degeneration – cell body degeneration occurring after transection of the axon. Nissl granules – Synonym(s): Nissl substance. Nissl methods – staining techniques. Nissl stain – a method for staining nerve cells.

What are the Nissl methods?

Nissl methods- staining techniques. Nissl stain- a method for staining nerve cells. Nissl substance- the material consisting of granular endoplasmic reticulum and ribosomes that occurs in nerve cell bodies and dendrites. Synonym(s): basophil substance; Nissl bodies; Nissl granules; substantia basophilia; tigroid bodies