Endocrine gland
Endocrine glands are ductless glands of the endocrine system that secrete their products, hormones, directly into the blood.
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Pineal gland
The pineal gland, conarium, or epiphysis cerebri, is a small endocrine gland in the brain of most vertebrates.
Hormone
Any member of a class of signaling molecules in multicellular organisms, that are transported by intricate biological processes to distant organs to regulate physiology and behavior.
In vertebrates, endocrine glands are specialized organs that secrete hormones into the endocrine signaling system.
Pituitary gland
In vertebrate anatomy, the pituitary gland, or hypophysis, is an endocrine gland, about the size of a pea and weighing, on average, 0.5 g in humans.
Gland
Group of cells in an animal's body that synthesizes substances for release into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland).
Endocrine glands secrete substances that circulate through the blood stream.
Endocrine system
Messenger system comprising feedback loops of the hormones released by internal glands of an organism directly into the circulatory system, regulating distant target organs.
In humans, the major endocrine glands are the thyroid gland and the adrenal glands.
Anterior pituitary
Glandular, anterior lobe that together with the posterior lobe (posterior pituitary, or the neurohypophysis) makes up the pituitary gland (hypophysis).
Tropic hormones are named for their ability to act directly on target tissues or other endocrine glands to release hormones, causing numerous cascading physiological responses.
Organ (biology)
Organ is a collection of tissues joined in a structural unit to serve a common function.
Endocrine system: communication within the body using hormones made by endocrine glands such as the hypothalamus, pituitary gland, pineal body or pineal gland, thyroid, parathyroids and adrenals, i.e., adrenal glands.
Adrenal gland
The adrenal glands (also known as suprarenal glands) are endocrine glands that produce a variety of hormones including adrenaline and the steroids aldosterone and cortisol.
Parathyroid gland
Parathyroid glands are small endocrine glands in the neck of humans and other tetrapods.