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77 Cards in this Set
- Front
- Back
The hormone called human growth plays a role in: a. normal development b. restoring homeostasis of a variable which is out of balance c. reproductive cycles in women and hormone production by the testes |
a |
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The target cell of the hormone called adrenocorticotropic hormone is found in the: |
anterior pituitary |
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The __________ for hormones can be found inside the cell and on the surface of a cell. |
receptors |
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The receptors for gonadal hormones (e.g., estrogen) are found: |
inside the cell |
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Causes the thyroid gland to release thyroid hormone: |
TSH |
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Stimulates the adrenal cortex to release cortisol: |
ACTH |
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Causes the follicle to release estrogen: |
LH |
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Causes the interstitial cells of the testes to release testosterone: |
LH |
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Which hormone stimulates milk production? |
Prolactin |
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__________ is a hormone that is produced by the parafollicular cells of the thyroid gland. |
Calcitonin is involved in helping to regulate levels of calcium and phosphate in the blood, opposing the action of parathyroid hormone. |
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_________ aka thyroid hormone sets the basal metabolic rate, stimulates the enzymes involved with glucose oxidation and controls heat production. |
Thyroxine |
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True or false:
Hormone receptors are specific. This means that each hormone has its own receptor, and incapable of binding to the receptor for a different hormone. |
True |
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True or false: A single cell may only express a single type of receptor. This means that a single cell can only be stimulated by a single hormone. |
False |
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Hormones are grouped based on their chemical makeup. Steroid hormones have what characteristic? |
Made from cholesterol |
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With one exception, amino-acid hormones cannot enter a cell. The reason for this restriction is that they are: |
-Hydrophilic -Cannot penetrate past the hydrophobic interior of the cell membrane |
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Steroid hormones can enter a cell. The reason they are able to move across the cell membrane is that they are: |
-Hydrophobic -They are able to pass through the hydrophobic interior of the cell membrane |
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The amino acid hormone which behaves like a steroid hormone is: |
Thyroxine (thyroid hormone) |
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With one exception, the receptors for amino acid hormones are found: |
On the outer surface of the target cell |
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Steroid hormone receptors are found: |
Within the target cell |
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Adrenocorticotropic hormone causes the the adrenal cortex to release its hormones: |
Hormonal stimulation |
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The sympathetic nervous system causes the adrenal medulla to release adrenaline: |
Neural stimulation |
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High calcium levels in the blood causes the thyroid gland to release calcitonin: |
Humoral stimulation |
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Low calcium levels in the blood causes the parathyroid gland to release parathyroid hormone: |
Humoral stimulation |
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Suckling by an infant causes the release of oxytocin by the posterior pituitary: |
Neural stimulation |
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For one hormone to have an effect on its target cell, another and different hormone must bind at the same time: |
Permissive |
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When two different hormones bind at the same time on the same cell, the total effect is much greater than the sum of the effects of each one binding alone: |
Synergistic |
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The effect of one hormone binding to its target cell is inhibited by another and different hormone binding to the same target cell: |
Antagonistic |
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True or false: Insulin and glucagon are synergistic hormones. |
False |
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Cortisol |
Glucocorticoids |
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Androgen |
Gonadocorticoids |
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Aldosterone |
Mineralcorticoids |
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Helps the body cope with long term stress: |
Cortisol |
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Suppresses the immune system and inflammation: |
Cortisol |
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Cells of the kidney respond to decreases in blood volume and blood pressure by releasing renin which cleaves angiotensinogen into angiotensin ll; angiotensin ll causes release of this hormone; it causes kidney cells to reabsorb sodium; when this happens, water is reasorbed: |
Aldosterone |
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Causes the kidney to reabsorb sodium; when this happens, water is also reabsorbed: |
Anti-diuretic hormone |
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Plays a role in onset of puberty and the development of secondary sex characteristics in both boys and girls: |
Androgen |
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The hormones released by the adrenal medulla are grouped as: |
Catecholamines |
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Hormones released by the _______ _______, mimic the response of the sympathetic nervous division under conditions of acute stress, fight or flight response: |
Adrenal medulla |
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Below the hypothalamus, connected by the infundibulum: |
Pituitary gland |
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On the front of the trachea, just below the larynx: |
Thyroid gland |
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Anterior pituitary hormones: |
-GH -ACTH -TSH -Prolactin -FSH -LH |
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Posterior pituitary hormones: |
-ADH also vasopression -Oxytocin
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Thyroid gland hormones: |
-T3 and T4 -Calcitonin
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Parathyroid gland hormones: |
-PTH |
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Adrenal cortex hormones: |
-Cortisol -Aldosterone -Androgens |
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Adrenal medulla hormones: |
-Epinephrine (sympathomimetic) -Norepinephrine |
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Pancreas hormones: |
-Glucagon -Insulin -Somatostatin |
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Female ovary hormones: |
-Estrogen -Progesterone -Inhibin -Relaxin |
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Male testes hormones: |
-Testosterone -Inhibin |
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Atrial natriuretic peptide: |
Heart |
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Melanin: |
Pineal gland |
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Erythropoietin, active vitamin D: |
Kidneys |
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Thymosin: |
Thymus gland |
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Gastrin, ghrelin: |
Stomach |
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Secretin, cholecystokinin: |
Small intestine |
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Leptin: |
Adipose tissue |
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Increases the rate of cell division in tissues capable of mitosis, increases the rate of amino acid uptake by cells and their use in protein synthesis, and promotes the use of fats for energy production: |
GH |
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Stimulates the adrenal cortex to produce its hormones, especially cortisol: |
ACTH |
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Stimulates growth of thyroid gland and production of thyroxine and T3: |
TSH |
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Stimulates the production of milk: |
Prolactin |
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Is a gonadotropic hormone, In women it stimulates growth of ova and secretion of estrogen by follicle cells, in men it initiates sperm production in the testes: |
FSH |
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Is a gonadotropic hormone, In women it causes ovulation, converts the ruptured ovarian follicle to the corpus luteum, and initiates its secretion of progesterone. In men it stimulates secretion of testosterone by the interstitial cells of the testes: |
LH |
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Increases reabsorption of water by the kidney tubules, decreases sweating, and when secreted in large amounts causes vasoconstriction that raises blood pressure: |
ADH (vasopressin) |
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Stimulates contractions during childbirth, promotes release of milk by the mammery glands: |
Oxytocin |
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Most important regulators of day-to-day metabolic rate: |
T3 and T4 |
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Increases the reabsorption of calcium and phosphate: |
PTH |
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(a glucocorticoid) Promotes the use of fats and excess amino acids for energy production and increases the storage of glycogen in the liver. Has an anti-inflammatory effect in that it blocks the effects of the histamine released when tissue is damaged: |
Cortisol |
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(a mineralocorticoid) Increases the reabsorbtion of sodium ions and the excretion of potassium ions by the kidneys. |
Aldosterone |
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Are secreted in small amounts; they may contribute to the development of the brain during childhood. |
Androgens |
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It raises heart rate, dilates the bronchioles, causes vasoconstriction in skin and viscera, vasodilation in skeletal muscles, increases the liver's conversion of glycogen to glucose, and inhibits peristasis in the alimentary tube, it also increases the use of fats for energy production: |
Epinephrine (sympathomimetic) |
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Causes vasoconstriction in the skin, viscera, and skeletal muscles, thereby raising blood pressure in stressful situations: |
Norepinephrine |
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Raises blood glucose level: |
Glucagon |
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Lowers blood glucose level: |
Insulin |
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Is chemically identical to growth hormone-inhibiting hormone from the hypothalamus; it acts locally to inhibit the stimulation of glucagon and insulin. Secreted by delta cells of the islets of langerhan: |
Somatostatin |
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Promotes secondary sex characteristics, during a menstrual cycle it promotes maturation of ovarian follicles and the growth of blood vessels in the endometrium: |
Estrogen |
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Stimulates growth of the glandular cells of the mammary glands, and during a menstrual cycle it promotes further growth of the endometrium and inhibits contractions of the myometrium: |
Progesterone |
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Inhibits contractions of the myometrium and facilitates stretching of the ligaments of the pubic symphysis: |
Relaxin |