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13 Cards in this Set

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  • Back
What is the Enodocrine system?
*performs the same general functions as the nervous system.
*Provides slower but longer-lasting control of hormones (chemicals) secreted into and circulated by the blood.
Organ or cell that is acted on by a particular hormone and then responds to it.
Steriod Hormone
Lock and Key Model: chemical activity. Interaction between H and its specific receptor site on the cell membrane of a target organ cell.
Nonsteriod Hormone
Work according to the Second Messenger Mechanism.
Growth Hormone GH
Hyposecretion: dwarfism (preadult)
Oxytocin: (posterior pituitary), stimulates uterine contractions at the end of pregnancy; stimulates the release of Milk into the breast ducts.
Hypersecretion: inappropriate ejection of milk in lactating women
Hyposecretion: prolonged or difficult labor and delivery
Prolactin: (anterior pituitary), stimulates breast development during pregnancy and milk secretion (milk letdown) after pregnancy
Hypersecretion: inapporpriate lactation in men or nonnursing women
Hyposecretion: insufficient lactation in nursing women
Calcitonin (Thyroid)- inhibits the breakdown of bone; casues a decrease in blood calcium concentration
Hypersecretion: possible hypocalcemia
Hyposecretion: possible hypercalcemia
Thyroxine (T4) Tri-iodothyronine (T3), stiulate the energy metabolism of all cells
Hypersecretion: hyperthyroidism, GRAVES DISEASE
Hyposecretion: hypothyroidism, cretinism(pre-adult), myxedema (adult)goiter
Pituitary Gland
Tow endocrine glands: anterior P (adenohypophysis) and Posterior P (neurohypophysis).Adeno-glands, nero-nervous., The later works like the nervous system.
Condition results from hyposecretion of the thyroid gland during the adult years. Edema around the eyes and the facial puffiness.
Cushing Syndrome:
results from HYPERsecretion of glucocorticoid hormone by a tumor of the middle zone of the adrenal cortex
Addison Disease:
Deficiency or hyposecretion of adrenal cotex hormones. JFK had it, results in reduced cortical homene levels-muscle weakness, reduced blood sugar, nausea, loss of appetite and weight loss.