Term
| Major regulatory system of the body |
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Definition
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| Bridge between the endocrine system and the nervous system |
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Definition
| Hypothalamus and pituitary |
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Term
| System that is regulated by frequency |
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Definition
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Term
| System that is amplitude regulated |
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Definition
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Term
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Definition
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Term
| hormones that do not get metabolized or excreted |
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Definition
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Term
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Definition
| released by cells and have a local effect on the same cell type as the cell releasing the chemicals |
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Term
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Definition
| released by cells and affect other cell types locally without being transported in blood |
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Term
| three types of hormone regulation |
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Definition
endocrine-endocrine
nervous-endocrine
substance-endocrine |
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Term
| example of endocrine-endocrine regulation |
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Definition
Hypothalamus, Adenohypophysis, Thyroid Cycle
→ Hypothalamus releases TRH
→ TRH acts on Adenophyphysis
→ Adenohypophysis releases TSH
→ TSH acts on Thyroid
→ Thyroid releases T3 and T4
→ T3 and T4 inhibit TRH and TSH
(negative feedback effect) |
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Term
| example of nervous-endocrine regulation |
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Definition
Sympathetic response to stress/exercise
→ ANS detects stress
→ Sympathetic neurons stimulate adrenal gland
→ Adrenal medulla releases epinephrine/norepinephrine
→ After stress has passed secretion of hormones decreases
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Term
| example of substance-endocrine regulation |
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Definition
Insuline-glucose cycle
→ Blood glucose levels increase
→ Pancreas increases insulin secretion
→ Insulin lowers blood glucose levels
→ Lower blood glucose levels inhibits insulin secretion
→ Lower insulin levels slows glucose uptake |
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Term
| Four ways hormones are removed from blood |
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Definition
Excretion
Conjugation
Metabolism
Active Transport |
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Term
| How kidneys and liver process hormones |
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Definition
Excretion
Conjugation - liver only |
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Term
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Definition
| Removal of hormones from blood stream by using urine or bile. Used by kidneys and liver. |
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Term
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Definition
Attachment of water soluble molecules to a hormone, such as sulfate or glucuronic acid, thereby inactivating the hormone and increasing its excretion rate by liver and kidney.
Liver is active in conjugation. |
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Term
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Definition
| Enzymatic degradation of protein hormones into amino acids to either be recycled or excreted into urine or bile. |
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Term
| Active transport of hormones |
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Definition
| When some hormones are actively transported into cells to be recycled. Ex: epinephrine and norepinephrine. |
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