Nissl's bodies located intracytoplasmic are in
Nissl bodiesLarge granular bodies that stain with basic dyes, forming the reticular substance of the cytoplasm of neurons, composed of rough endoplasmic reticulum and free polyribosomes.Ref: Ganong&;s review of medical physiology; 24th edition
Perikaryon of neuron
Smooth muscle
Skeletal muscle
Cardiac muscle
Endocrinology