Question

Compare and contrast.

Exocrine glands and Endocrine glands

Answer 1

Glands are specialized groups of cells or organs that secrete chemical substances. Glands are of two categories: exocrine glands and endocrine glands.

1. Exocrine glands (duct glands) - Exocrine glands release their secretions directly into an organ or issue for e.g. tear glands, sweat glands, salivary glands.
2. Endocrine glands (ductless glands) - Endocrine glands secrete chemical substances called hormones directly into the bloodstream. The main endocrine glands are the Pituitary, Thyroid, Parathyroid, Adrenals, Pancreas, Gonads, Pineal gland, and Thymus. Over secretion or under secretion of any gland can cause serious problems for the person. E.g., hyposecretion of insulin by the pancreas can result in diabetes. Endocrine glands regulate various bodily activities, control physical - physiological growth as well as emotional and cognitive development.