Endocrine System

Endocrine System: Pituitary Gland diagram showing the two lobes of Pituitary gland

Endocrine System consists of ductless glands that control, communicate, coordinate and integrate various functions of all the body organs by secretions of chemical messenger called hormones.

Nervous System

Diagrammatic structure of Neuron

The system that controls and coordinates all the activities of various body parts in response to external and internal stimuli by the conduction of nerve impulses is called nervous system.