: Functionally unique as both a ductless (insulin) and ducted (digestive enzymes) gland.
: They control vital biological processes including: Metabolism : Energy use and storage. Growth : Physical development and cellular repair. ductless gland
: Maintaining internal balance like blood sugar and temperature. Major Examples : Functionally unique as both a ductless (insulin)
: Often called the "master gland" for controlling others. Thyroid Gland : Found in the neck; manages metabolic rate. regulate stress via adrenaline. Ductless glands
: Located atop kidneys; regulate stress via adrenaline.
Ductless glands, formally known as , are specialized organs that secrete hormones directly into the bloodstream rather than through tubes or ducts. Key Features
: They pour chemical messengers (hormones) directly into the circulatory system for body-wide transport.