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53 Cards in this Set
- Front
- Back
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The __ lies anterior and superior to the pituitary gland and is compressed by thte anterior pituitary neoplasms causing visual field defects.
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optic chiasm
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A __ tumor should be considered in any pt. who presents with visual field changes/deficits or HA changes.
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pituitary tumor
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What are the first 2 signs of pituitary tumor?
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HA
visual field changes/deficits |
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What is the test of choice to diagnose pituitary tumors?
-CT -MRI -ultrasound |
MRI
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It is important to do visual acuity and EOM's during an exam, as a pt. may have __ __
with a pituitary tumor. -anopsia -hemianopsia -bilat hemianopsia |
bilateral hemianopsia
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Do fat soluble hormones or water soluble hormones work within the feed back loop?
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fat soluble hormones
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The anterior pituitary produces what hormones?
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ACTH
TSH FSH LH prolactin growth hormone |
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The target organs of ACTH & TSH?
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adrenal cortex
thyroid |
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What are the target organs of FSH & LH?
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ovaries
testicles |
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What is the target organ of Prolactin?
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mammary glands
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What is the target organ of Growth Hormone?
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most tissues
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What is the function of ACTH & LH (target organ is adrenal cortex and thyroid)?
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secretion & growth of glands
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What is the function of FSH & LH (target organ is ovaries and testicles)?
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secretion of hormones, growth of sex glands, reproductive functions
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What is the function of Prolactin (target organ is mammary glands)?
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milk production
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What is the function of Growth Hormone (target organ is most tissues)?
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body growth
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The secretion of hormones, growth of sex glands, and reproductive functions comes from what target organs, from what hormones, and these hormones come from what gland?
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the ovaries and testicles as a result of FSH & LH that comes from the Anterior Pituitary
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the secretion and growth of glands comes comes from what target organs, from which hormones, and these hormones originate from what gland?
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The adrenal cortex, and thyroid, are under the control of ACTH & TSH from the anterior pituitary.
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Milk production results from what hormone and target organ from which gland?
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prolactin to the mammary glands that is secreted by the anterior pituitary.
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All of the following are excreted from the posterior pituitary except one, which one?
-ACTH -ADH -Oxytocin |
ACTH is secreted from the anterior pituitary
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What is the target organ of ADH?
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kidneys
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What are the target organs of Oxytocin?
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ovaries and mammary glands
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What is the function of oxytocin?
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milk production and childbirth
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What hormones are secreted by the thyroid?
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thyroxin, T3 and Calcitonin
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What is the function of calcitonin?
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reduces Ca++ removal from bone; lowers blood Ca++
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What is the target organ of calcitonin?
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bones
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What are the target organs of thyroxin/T3?
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most tissues
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What is the function of thyroxin/T3?
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raises metabolic rate
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What hormone is secreted from the parathyroid?
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PTH-parathormone
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What are the target organs of PTH?
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bones and kidneys
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What is the function of PTH?
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removes Ca++ form bone, raises blood Ca++
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Which hormone reduces Ca removal from bone, and lowers blood Ca++?
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calcitonin
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Which hormone removes Ca++ from bone and raises blood Ca++?
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PTH
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Which 3 hormones are secreted from the adrenal cortex?
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cortisol, androgens, and aldosterone
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What is the target organ of cortisol and androgens?
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many tissues
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What is the function of cortisol?
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resistance to stress
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What is the function of androgens?
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male sex characteristics
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What hormone is secreted from the adrenal medulla?
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epinephrine
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What are the target organs of epi?
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many organs
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What is the function of epi?
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fight or flight
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What 2 hormones are secreted from the pancreas?
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insulin and glucagon
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What are the target organs of insulin?
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muscle, fat, liver
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What is the function of insulin?
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reduces blood glucose
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What is the target organ of glucagon?
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liver
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What is the function of glucagon?
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raises blood glucose
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What is the target organ of aldosterone?
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kidneys
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What is the function of aldosterone?
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Na retention
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Where gland is aldosterone released from?
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adrenal cortex
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What hormone is secreted from the kidney's?
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erythropoietin
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What is the target hormone of erythropoietin?
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bone marrow
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What is the function of erythropoietin?
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increase red blood cells
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Are the following criteria of water soluble or fat soluble hormones?
-occur very low in blood concentrations -bld concentrations can be changed very rapidly -concentrations vary over a wide range of values -are rapidly removed from the blood (short 1/2 lives) |
water soluble
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Which has a "predictable" blood concentrations, with long half lives?
-fat soluble hormones -water soluble hormones |
fat soluble hormones
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If you eat a snack, and bld glucose rises, insulin is secreted from the pancreas, causing liver cells to take up glucose and store it as glycogen, body cells take up glucose, glucose levels in blood drop and insulin release stops, and the body returns to homostatic glucose levels....what is this?
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damn long question is what that is!
Answer is negative feedback loop |
