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21 Cards in this Set

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