What is the difference between endocrine and exocrine gland function?

Endocrine glands secrete hormones directly into the bloodstream, while exocrine glands secrete substances through ducts.

Endocrine glands are ductless glands that secrete hormones directly into the bloodstream. Hormones are chemical messengers that travel through the bloodstream to target cells, where they bind to specific receptors and elicit a response. Examples of endocrine glands include the pituitary gland, thyroid gland, and adrenal gland.

Exocrine glands, on the other hand, secrete substances through ducts that lead to the surface of the body or into a body cavity. Examples of exocrine glands include sweat glands, salivary glands, and pancreas. Exocrine glands secrete a variety of substances, including enzymes, mucus, and sweat.

The function of endocrine and exocrine glands differs in terms of their target cells and mode of secretion. Endocrine glands secrete hormones that act on target cells throughout the body, while exocrine glands secrete substances that act locally on nearby cells. Additionally, endocrine glands secrete hormones in response to specific stimuli, such as changes in blood glucose levels, while exocrine glands secrete substances continuously or in response to specific stimuli, such as the presence of food in the digestive tract.

In summary, endocrine and exocrine glands differ in their mode of secretion and target cells. Endocrine glands secrete hormones directly into the bloodstream, while exocrine glands secrete substances through ducts. Both types of glands play important roles in maintaining homeostasis in the body.