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A&P endocrine
| Question | Answer |
|---|---|
| How are hormones targeted at specific tissues? | the tissue must have a receptor for that hormone |
| How are water soluble hormones transported in the blood? | can travel freely and all by itself in the blood |
| how are lipid soluble hormones transported in the blood? | must bind to molecule in the blood |
| Does the hormone change gene expression or intracellular pathway? | epigenetic inheritance is long term secretion of stress hormones that change gene expression in our offspring |
| How does enzyme amplification cause a big effect from small amounts of hormone? | hormones are extremely potent, so a small amount causes a cascade effect |
| Effects of up-regulation | more sensitive to a hormone |
| Effects of down-regulation | less sensitive to a hormone |
| What is atrial naturetic peptide and what is the effect? | A hormone that produces plasma volume |
| What is the principle behind up-regulation? | a cell increases number of receptors |
| What is the principle behind down-regulation? | cell reduces receptor population |
| When insulin lowers blood glucose level then glucose raises it. What is this an example of? | antagonistic effect |
| When estrogen enters the cell and progesterone comes later. What is this an example of? | permissive effect |
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