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21 Cards in this Set
- Front
- Back
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Hyposecretion
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too littel of a hormone is produced
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Nonsteroid Hormones
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Versions of singel amino acids
serve as first messenger, providing comm. between endocrine glands and target organs |
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Cyclic AMP
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acts as the second messenger providing comm. within a hormones target cells
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Steroid hormones
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lipid soluble, and pass directly through the plasma membrane and cytoplasm of the target cell and enter the nucleus
then binds with a receptor to form a hormone receptor complex |
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Negative Feedback
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highly specialized homeostatic mechanism that regulates hormone levels in blood
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Prostaglandins (PG's)
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tissue hormones
play important role in communication and control of body functions but are not hormones divided into several classes |
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PGA PGE and PGF
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best known Prostaglandin
have profound effects on many body function influence resp/BP/gastro secretions/inflamation and reproductive system |
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Pituitary gland
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2 parts
Anterior adenohypophysis ad-eh-no-hye-POF-i-sis posterior neurohypophysis noo-roh-hye-POF-i-sis |
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Pituitary gland location
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deep in cranial cavity in small depression of sphenoid bone (sella turcica)
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Tropic Hormones
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stimulate other endocrine glands to grow and secrete their hormones
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Anterior pit. gland
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exerts control over the thyroid, adrenal cortex, ovarian follicles and corpus luteum
secretions are controlled by hypothalmus |
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Thyroid-stimulating hormones
TSH |
acts on/stimulates thyroid gland to increase secretion
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Adrenocoritcotropic hormone
ah-dree-no-kor-teh-koh-TRO-oic ACTH |
Tropic hormone
stimulates secretion of adrenal cortex hormone |
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Follicle-stimulating hormone
FSH |
Tropic hormone
F-stim. development of ovarian follicles and sec. of estrogen M-stim seminiferous tubles of testes to grow and produce sperm |
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Luteinizing hormone LH
loo-tee-in-EYE-zing |
tropic hormone
F-stim maturation of ovarian foll and ovum/stim sec. of estrogen M-stim interstitial cells of testes to sec testosterone |
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Growth Hormone GH
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stim. growth in all organs; causes increase in glood glucose concentration
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Prolactin lactogenic hormone
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stimulates breast devel. during pregnancy and milk sec. after pregnancy
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Posterior Pit. gland hormones
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releases 2
antidiuretic hormone (ADH) oxytocin |
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Antidiuretic hormone ADH
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stimulates retention of water by the kidneys
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Oxytocin
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stim uterine contractions at the end of pregnancy; stimulates the release of milk into breast ducts
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Diabetes insipidus
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a condition in which high volumes of urine are formed.
caused by hyposecretion of ADH |
