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12 Cards in this Set
- Front
- Back
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What is the real name of the posterior pituitary?
Anterior pituitary? |
posterior- neurohypothesis an extension of the nervous system
anterior- adenohypothesis- invagination of the pharynx (rathke's pouch) |
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Where are cell bodies that produce oxytocin located?
ADH? |
paraventricular nucleus of posterior pituitary
- arginine vasopressin (ADH) made in the supraoptic nucleus |
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What is the function of oxytocin (OT)?
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1. facilitates uterine contractions during labor and induces milk-ejection in the nursing mother
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What carries ADH and oxytocin from the hypothalamus to posterior pituitary?
What are they derived from? |
1. neurophysins
2. derived from neuroectoderm |
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What is arginine vasopressin's function?
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1. contraction of vascular smooth muscle
2. Anti-diuretic (water conservation) renal activity |
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Name the hormones that released from anterior pituitary...
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FLAT PIG
1. FSH 2. LH 3. ACTH 4. TSH 5. ProlactIn 6. GH |
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Describe the path for the hormones from hypothalamus to pituitary
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Hypothalamo-hypyphyseal portal system
- capillaries in median eminence pick up hypophysiotropic hormones secreted by neurons in hypothalamus |
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The alpha subunit is the common subunit to which 4 hormones?
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TSH
LH FSH hCG |
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The B subunit does what?
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determines hormone specificity because it is different for each hormones
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What is the hormone ACTH derived from?
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It is an adrenocorticotropin hormone from the proopiomelanocortin (POMC) family
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Kallman's syndrome is an example of what physiologically?
Why do they gender freaks not smell ass? |
Problem with the releasing hormone
- GnRH develop embriologically in the nose and in Kallman's syndrome they dont migrate up the olfactory nerves as they should - dont reach the normal position in the hypothalamus |
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with endocrine problems explain the terms...
a. primary problem b. secondary problem c. tertiary problem |
a. hormone that is in abundance or less is due to problem from its origin
b. if high Thyroxine but due to anterior pituitary problem that causes too much TSH c. if thyroxine is not secreted due to problem steming from the hypothalamus then you can call it a tertiary problem |
