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21 Cards in this Set
- Front
- Back
the thyroid gland has ____ lateral lobes & is composed of ____
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2 - follicles
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cuboidal follicle cells produce ____
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thyroglobulin
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thyroglobulin is stored in ____ of ____
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lumen - follicle
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____ attaches to thyroglobulin
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iodine
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in thyroglobulin, after iodine attaches, molecule is split into ____ & ____
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T3 - T4 (mostly T4)
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when T3 & T4 hormones enter circulation, more ____ is formed
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T3
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what is T4
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thyroxin
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what is T3
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triiodothyronine
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T3 is converted to ____, once in ____
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T4 - tissue
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T4/T3 are secreted in response to ____ & __creased T4/T3
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TSH - decreased
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effectes of T4/T3 __creases metabolic rate
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increases
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effectes of T4/T3 __creases heat production
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increases
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effectes of T4/T3 promotes ____ ____ & enhances the affect of ____
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protein synthesis - GH
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effectes of T4/T3 promotes uptake of ____ by cell
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glucose
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effectes of T4/T3 promotes ____ metabolism
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lipid
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effectes of T4/T3 speeds up action of ____ ____
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nervous system
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hyposecretion of T4/T3 can result in ____ in children & ____ in adults
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cretinism - myxedema
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hypersecretion of T4/T3 increases ____ ____ & causes ____ disease
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nervous system - Grave's
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calcitonin is secreted by ____ cells or ____ of the ____ gland
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parfollicular - c-cells - thyroid
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calcitonin is released in response to …
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high blood calcium
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calcitonin stimulates uptake of ____ by ____ & __creases overall blood calcium
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calcium - bone - decreases
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