Exocrine glands

Definition

Exocrine glands are glands that secrete substances through ducts to an epithelial surface, such as the skin or the lining of the gastrointestinal tract. These secretions include enzymes, sweat, saliva, and mucus.

5 Must Know Facts For Your Next Test

1. Exocrine glands release their secretions directly onto an epithelial surface rather than into the bloodstream.
2. Examples of exocrine glands include sweat glands, salivary glands, and the pancreas.
3. The pancreas has both exocrine functions (digestive enzymes) and endocrine functions (insulin).
4. Sweat glands help regulate body temperature through the secretion of sweat.
5. Exocrine gland dysfunction can lead to conditions like cystic fibrosis and pancreatitis.

Review Questions

• What is the primary function of exocrine glands?
• Name three examples of exocrine glands in the human body.
• How do exocrine gland secretions reach their target areas?

Related terms

Endocrine Glands: Glands that secrete hormones directly into the bloodstream for systemic distribution.

Ducts: Tubular structures that transport secretions from exocrine glands to specific sites.

Pancreas:

An organ with both endocrine functions (insulin production) and exocrine functions (secretion of digestive enzymes).