Ductless glands

Ductless Glands

Ductless glands, also known as endocrine glands, are a type of gland that secretes hormones directly into the bloodstream rather than through a duct. The term "ductless" refers to the absence of a physical channel or tube for the secreted hormones to travel through.

Pronunciation

Ductless: /ˈdʌktlɪs/ Glands: /ɡlændz/

Etymology

The term "ductless" is derived from the Latin word "ductus" meaning "leading", and the suffix "-less" meaning "without". The term "gland" is derived from the Latin word "glandula" meaning "small acorn".

Function

Ductless glands play a crucial role in the endocrine system, regulating a variety of bodily functions such as metabolism, growth and development, tissue function, and mood. The hormones they secrete include insulin, thyroxine, and cortisol, among others.

Types of Ductless Glands

There are several types of ductless glands in the human body, including:

• Pituitary gland
• Thyroid gland
• Adrenal gland
• Pineal gland
• Parathyroid gland
• Pancreas (also functions as an exocrine gland)
• Ovaries (in females)
• Testes (in males)

Related Terms

• Hormone
• Endocrine system
• Exocrine gland
• Gland

External links

• Medical encyclopedia article on Ductless glands
• Wikipedia's article - Ductless glands

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