kjertelcellene

Kjertelcellene, also known as glandular cells, are specialized cells found in glandular tissues throughout the body. These cells are responsible for the production and secretion of various substances, including hormones, enzymes, mucus, sweat, and milk. The specific type of substance secreted depends on the gland and the function of the cell.

These cells are characterized by their abundant cytoplasm, which often contains numerous organelles involved in synthesis and secretion, such as the endoplasmic reticulum, Golgi apparatus, and secretory vesicles. The nucleus of a kjertelcelle is typically large and can be centrally located or basally positioned, depending on the cell's activity and the specific gland.

Kjertelcellene are organized into different structures, forming exocrine glands that secrete their products onto a surface or into a lumen, and endocrine glands that release their secretions directly into the bloodstream. Examples of exocrine glands include salivary glands, sweat glands, and mammary glands, while endocrine glands include the thyroid, adrenal glands, and pancreas (which has both exocrine and endocrine functions).

The activity of kjertelcellene is regulated by various physiological signals, including hormones, neurotransmitters, and local factors. This regulation ensures that the appropriate amount of secretion is produced in response to the body's needs. Disorders affecting kjertelcellene can lead to a range of conditions, such as diabetes, thyroid dysfunction, and certain types of cancer.