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  2. Endocrine system - Wikipedia

    en.wikipedia.org/wiki/Endocrine_system

    Endocrine glands are glands of the endocrine system that secrete their products, hormones, directly into interstitial spaces where they are absorbed into blood rather than through a duct. The major glands of the endocrine system include the pineal gland , pituitary gland , pancreas , ovaries , testes , thyroid gland , parathyroid gland ...

  3. Excretory system - Wikipedia

    en.wikipedia.org/wiki/Excretory_system

    The dual function of excretory systems is the elimination of the waste products of metabolism and to drain the body of used up and broken down components in a liquid and gaseous state. In humans and other amniotes ( mammals , birds and reptiles ), most of these substances leave the body as urine and to some degree exhalation, mammals also expel ...

  4. Excretion - Wikipedia

    en.wikipedia.org/wiki/Excretion

    Mammals excrete urine through the urinary system. Excretion is elimination of metabolic waste, which is an essential process in all organisms. In vertebrates, this is primarily carried out by the lungs, kidneys, and skin. [1] This is in contrast with secretion, where the substance may have specific tasks after leaving the cell.

  5. List of systems of the human body - Wikipedia

    en.wikipedia.org/wiki/List_of_systems_of_the...

    This is an accepted version of this page This is the latest accepted revision, reviewed on 11 December 2024. List of organ systems in the human body Part of a series of lists about Human anatomy General Features Regions Variations Movements Systems Structures Arteries Bones Eponymous Foramina Glands endocrine exocrine Lymphatic vessels Nerves Organs Systems Veins Muscles Abductors Adductors ...

  6. Urinary system - Wikipedia

    en.wikipedia.org/wiki/Urinary_system

    The urinary system is under influence of the circulatory system, nervous system, and endocrine system. Aldosterone plays a central role in regulating blood pressure through its effects on the kidney. It acts on the distal tubules and collecting ducts of the nephron and increases reabsorption of sodium from the glomerular filtrate.

  7. Enteroendocrine cell - Wikipedia

    en.wikipedia.org/wiki/Enteroendocrine_cell

    Enteroendocrine cells are specialized cells of the gastrointestinal tract and pancreas with endocrine function. They produce gastrointestinal hormones or peptides in response to various stimuli and release them into the bloodstream for systemic effect, diffuse them as local messengers, or transmit them to the enteric nervous system to activate nervous responses.

  8. Mammalian kidney - Wikipedia

    en.wikipedia.org/wiki/Mammalian_kidney

    In addition to excretory, the kidneys also perform an endocrine function, they produce certain hormones. The juxtaglomerular cells of the kidneys produce renin , which is a key regulator of the renin–angiotensin system , which is responsible for blood pressure regulation.

  9. Endocrinology - Wikipedia

    en.wikipedia.org/wiki/Endocrinology

    Endocrinology (from endocrine + -ology) is a branch of biology and medicine dealing with the endocrine system, its diseases, and its specific secretions known as hormones.It is also concerned with the integration of developmental events proliferation, growth, and differentiation, and the psychological or behavioral activities of metabolism, growth and development, tissue function, sleep ...