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26 Cards in this Set
- Front
- Back
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What are the 3 characteristics of the Hypothalamus and its hormones?
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proteins, work through PKA or PKC system, affect pituitary
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What are the hormones that come from the anterior pituitary gland? 7
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GHRH, GHIH, TRH, CRH, GnRH, PRH, PIH
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What are the hormones that come from the posterior pituitary gland? 2
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oxytocin, ADH
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What is the hypohysis of the anterior and posterior pituitary gland?
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Neurohypophysis-posierior, Adenohypophysis-anterior
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Neurohypophysis?
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storage area or hypothalamic hormones
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Adenohypophysis?
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secretory cells
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What does the Infundibulum contain? 2
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axons and blood vessels
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Role of hypophyseal portal system?
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transports releasing/inhibiting hormones to the anterior pituitary gland
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What hormones do the Hypothalamic hypophyseal tract contain?
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Neurohormones- oxytocin and ADH
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What are tropic hormones?
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regulate secretion of other glands
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What are the anterior pituitary tropic hormones?
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TSH, ACTH, FSH, LH
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TSH- name & function?
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Thyroid Stimulating hormone, stimulates thyroid gland to produce thyroid hormone
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ACTH- name & function?
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Adrenocorticotropic hormone, stimulates adrenal cortex to release glucocorticoids
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FSH-- name & role?
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Follicle stimulating hormone, stimulates sperm production
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LH- name & role?
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luteinizing hormone, stimulates production of testerone and estrogen
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What 2 hormones of the anterior pituitary are not tropic?
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GH, PH
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Characteristics of GH? 2
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Somatotropin, Somatomedins
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Somatropin?
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targets bone, muscle, etc
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Somatomedins?
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insulin like growth factor
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Functions of GH? 4
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anabolic, protein synthesis, sulfur (bone building), lipolysis, glycogen metabolism
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What are anterior pituitary hormones regulated by?
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hypothalamic stimulation, feedback mechanisms
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What does regulation of tropic hormones involve?
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negativefeedback to hypothalamus and pituitary
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What does regulation of non tropic hormones involve?
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both negative and positive feedback to hypothalamus and pituitary
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Function of Oxytocin?
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stimulates milk let down
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What transduction system does Oxytocin produce?
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PKC system
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ADH- name & function?
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Antidiuretic hormone, regulated water balance thru kidney, elevates blood pressure
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