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Chapter 15
Endocrine System and Nutritional and Metabolic Diseases
35
Medical
Professional
06/18/2015

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Term
Hormone
Definition
A complex chemical substance produced in one part or organ of the body and having a special regulatory effect on the activity of an organ or group of cells in another part.
Term
Hypophysis
Definition
Another term for the pituitary gland.
Term
Master Gland
Definition
What the pituitary gland is sometimes referred to as.
Term
Adenohypophysis
Definition
Another term for the anterior lobe of the pituitary gland.
Term
Neurohypophysis
Definition
Another term for the posterior lobe of the pituitary gland.
Term
Anterior lobe of pituitary gland functions.
Definition
Secretes hormones that effect bone, adrenal cortex, thyroid, testis/ovary, and mammary glands.
Term
Posterior lobe of pituitary gland releases what two hormones?
Definition
Antidiuretic hormone (ADH) and oxytocin (OT) is secreted by this.
Term
ACTH (Adrenocorticotrophic Hormone)
Definition
Stimulates the adrenal cortex to release steroids.
Term
Gonadotrophic Hormones
Definition
-FSH (follicle-stimulating hormone)
-LH (luteinizing hormone)
-ICSH (interstitial cell-stimulating hormone)
Term
GH (Growth Hormone)/hGH/STH
Definition
Stimulates growth of long bones and skeletal muscle; converts proteins to glucose.
Term
Thyrotropin (TSH/thyroid-stimulating hormone)
Definition
Stimulates thyroid to release two other thyroid hormones.
Term
PRL (prolactin)
Definition
Stimulates milk production in the breast.
Term
ADH (Antidiuretic hormone)
Definition
Stimulates the kidneys to reabsorb water and return it to circulation. Also a vasoconstrictor (results in higher blood pressure)
Term
Oxytocin (OT)
Definition
Stimulates muscles of the uterus during delivery and mammary ducts during feeding.
Term
Thyroid gland
Definition
-Regulates metabolism
-regulates normal growth and development
-controls amount of calcium deposited into bone.
Term
Calcitonin
Definition
Regulates the amount of calcium in the bloodstream
Term
Thyroxine (T4) (Tetraiodothyronine)
Definition
Increases cell metabolism
Term
T3 (triiodothyronine)
Definition
Increases cell metabolism
Term
Parathyroid glands
Definition
Secretes PTH in response to a low level of calcium in the blood.
Term
PTH (parathyroid hormone)
Definition
Simulates release of calcium from bone and results in calcium reabsorption by the kidneys and digestive system.
Term
Parts or the adrenal gland
Definition
Adrenal cortex (external) and adrenal medulla (internal).
Term
Adrenal gland
Definition
Gland that secretes steroids:
-glucocorticoids
-sex hormones
-mineralocorticoids
-dopamine
-epinephrine
-norepinephrine
Term
Hormone also called "cortisol"
Definition
Glucocorticoids
Term
Glucocorticoids
Definition
respond to stress and have antiinflammitory properties.
Term
Mineralocorticoids/aldosterone
Definition
regulate blood volume, blood pressure, and electrolytes.
Term
Dopamine
Definition
Dilates arteries and increased production of urine, blood pressure, and cardiac rate.
Term
Epinephrine/adrenaline
Definition
Dilates bronchi, increases heart rates, raises blood pressure, dilates pupils, and elevates blood sugar levels.
Term
Norepinephrine/noradrenaline
Definition
Increases heart rate and blood pressure and elevates blood sugar levels for energy use.
Term
Exocrine and endocrine function of Pancreas
Definition
Exocrine: release digestive enzymes into small intestines.
Endocrine: regulate level of glucose in the blood by stimulating the liver.
Term
Alpha cells
Definition
produce the hormone glucagon, which increases the level of glucose in the blood when levels are low.
Term
Beta cells
Definition
secrete Insulin, which decreases the level of glucose in the blood when levels are high.
Term
Insulin
Definition
needed to transport glucose out of the bloodstream and into cells.
Term
Ketones
Definition
Found in the blood when proteins are broken down, in the absence of glucose in the cells.
Term
Thymus gland location and function
Definition
Located in the mediastinum; releases thymosin which is responsible for stimulating key cells in the immune response.
Term
Pineal body location and function
Definition
Located in the center of the brain; secretes melatonin.
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