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12 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is a hormone? |
A substance that is secreted directly into the blood from the tissue where it's made |
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Where does the blood carry hormones secreted to? |
All parts of the body but the hormone only affects target organs or cells |
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Where are hormones synthesised? |
Endocrine tissue |
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How are other hormones made? |
Groups of cells in other organs |
Non endocrine gland |
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How do hormones work? |
Attach to receptor proteins in the cell surface membrane of target cells Reactions occur activating enzymes in the cells Converts ATP to cyclic AMP in the cell Cyclic AMP makes changes to the cell |
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What are endocrine glands? |
Organs that secrete hormones |
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Give examples of endocrine glands that secrete hormones |
Pituitary gland (Below the brain) Adrenal gland (On top of each kidney) |
Give location of gland also |
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Give examples of groups of cells in other organs that produce hormones |
Cells that produce sex hormones in testes and ovaries Insulin making cells in pancreas |
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How do lipid soluble hormones work? |
Pass through cell surface membrane into cell Attach to receptor proteins in cytoplasm Enter nucleus causing gene expression Leads to enzyme production |
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What is the job of the hormonal system? |
Coordinates the response to certain stimuli |
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What is the differnce between endocrine and exocrine glands? |
Endocrine glands release substances into the blood Exocrine glands release substances into open space |
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Give an example of an endocrine gland |
Salivary gland |
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