Question

Nissl’s granules are

• A. irregular masses of RER and free ribosomes
• B. neuroglial cells that produce the myelin sheath
• C. endocrine glands
• D. phagocytic cells

Answer 1

The correct option is A irregular masses of RER and free ribosomes

Nissl’s granules are deeply stained particles present in the neuroplasm. They are an irregular mass of rough endoplasmic reticulum (RER) and free ribosomes.


The neuroglial cells that produce myelin sheath are called Schwann cells.

Endocrine glands are ductless glands that secrete their products directly into the fluid bathing the gland. E.g: Thyroid glands, pituitary glands, adrenal glands, etc.

Microglia are phagocytic neuroglial cells.

Endocrine glands are ductless glands.