Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

BIO202-CH16-Thyroid

BIO202 - Ch 16 - Thyroid Gland - Marieb/Hoehn - RioSalado - AZ

QuestionAnswer
What is often referred to as body's major metabolic hormone? TH - thyroid hormone
__ affects virtually every cell in the body. TH - by stimulating a calorigenic effect
T1,T2, T3, & T4 differ from each other in what way? The number of iodine attached to tyrosine.
Most T3 is generated in __. Peripheral tissues
The inital response to TSH bonding is __. Secretion of thyroid hormone.
What is synthesized to "restock" follicle lumen? Colloid
Why is thyroid gland unique? Ability to store its hormone extracellularly & in large quantities.
Most released T4 & T3 immediately bind to __. TBGs (thyroxine-binding globulins) - transport proteins produced by liver.
TH enters target cell & binds to __. intracellular receptors in nucleus - initiates mRNA transcription.
Hypothyroid syndrome is called __. myxedema
What are the symptoms of myxedema? Low metabolic rate, edema, lethargy & mental sluggishness
Endemic goiter caused by? Enlarged thyroid due to lack of iodine. Follicle cells produce colloid but cannot iodinate it.
Hypothyroidism in children in called __. Cretinism - developmental abnormalities & mental retardation.
What is Graves' disease? Hyperthyroid - autoimmune disease - protrusion of eyeballs & elevated metabolic rate.
Calcitonin is? Hormone produced by parafollicular (C) cells of thyroid gland - lowers blood Ca2+
What effect does calcitonin have? Lower blood Ca2+ levels - targets skeleton & inhibits osteoclast activity
Created by: Ladystorm