these are ductless or tubeless organs or groups of cells that secrete hormones directly into the bloodstream
endocrine glands
These are called endocrine glands. They are ductless glands that secrete hormones directly into the bloodstream. Hormones are chemical messengers that regulate many physiological processes in the body, such as metabolism, growth and development, sexual function, and response to stress. Some examples of endocrine glands include the pituitary gland, thyroid gland, adrenal gland, and pancreas. The endocrine system is crucial for maintaining homeostasis in the body and plays a vital role in overall health and well-being.
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