Term
| What is the neuroendocrine reflex |
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Definition
| starts with a snsensory neuron--interneurons in the spinal chord--travel to hypothalmus--neurons release neurohormones into blood--travel to target tissue |
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Term
| what is a simple neural reflex |
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Definition
| sensory neuron--interneuron in spinal cord--efferent neuron to target tissue |
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Term
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Definition
ductless gland
secretes hormone into blood or lymph |
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Term
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Definition
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Term
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Definition
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Term
| classifications of hormones |
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Definition
1.site of production
2.type of action
3. Chemical structure |
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Term
| what is the structure and function of the hypothalamus hormones |
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Definition
| short chain polypeptides that cause release of trophic hormones from anterior pituitary |
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Term
| 5 hormones from the hypothalamus |
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Definition
GnRH
TRH
CRH
GH-RH
Somatostatin (inhibits growth hormone) |
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Term
| anterior pituitary hormone structure |
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Definition
glycoproteins
gonadatropins |
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Term
| anterior pituitary hormones |
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Definition
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Term
| general structure of glycoprotein hormones |
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Definition
2 amino acid chains
alpha is the same for all
beta chain gives it specificity |
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Term
| posterior pituitary hormone and structure |
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Definition
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Term
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Definition
eCG
HCG
PL
estrogen and progesterone (steroids) |
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Term
| what feedback suppresses GnRH? stimulates GnRH? |
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Definition
negative feedback
positive feedback |
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Term
| what 4 steps are involved in protein hormones? |
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Definition
1. hormone-receptor binding
2. adenylate cyclase activation (ATP--cAMP)
3. Protein Kinase activation
4. synthesis of new products |
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Term
| what are the steps for the slow response of a steroid hormone? |
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Definition
1.steroid transport
2. movement through the cell membrane and cytoplasm
3. binding of steroid to receptor
4. mRNA synthesis an protein synthesis |
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Term
| which hormones have the longest half life |
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Definition
| chorionic gonadotropins (eCG and hCG) |
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Term
| what does the ELISA method rely on |
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Definition
| color produced from the substrate reacting with the enzyme anitbody-hormone complex |
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Term
| what product do you get when you metabolize a steriod |
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Definition
| glucuronide and other product |
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Term
| what type of hormones can not be given orally? why? |
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Definition
| polypeptides and protein hormones because the stomach will denature them |
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Term
| which hormones are regulated by negative feedback |
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Definition
| testosterone, estrodiol, progesterone, inhibin |
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Term
| which hormones are regulated through positive feedback |
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Definition
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