Homework Help is Here – Start Your Trial Now!
Science
Anatomy and Physiology
Why are Thyroid Stimulating Hormone levels low when T3 and T4 levels are elevated in Grave's Disease? In Graves' Disease, the pituitary gland is diseased causing low levels of TSH TSH stimulates T3 and T4 production, so if T3 and T4 are elevated TSH levels are decreased TRH, TSH, and T3/T4 are regulated by a positive feedback loop, so if T3 and T4 are elevated, TSH would be decreased TSH inhibits T3 and T4 production, so if T3 and T4 are elevated TSH levels are decreased

Why are Thyroid Stimulating Hormone levels low when T3 and T4 levels are elevated in Grave's Disease? In Graves' Disease, the pituitary gland is diseased causing low levels of TSH TSH stimulates T3 and T4 production, so if T3 and T4 are elevated TSH levels are decreased TRH, TSH, and T3/T4 are regulated by a positive feedback loop, so if T3 and T4 are elevated, TSH would be decreased TSH inhibits T3 and T4 production, so if T3 and T4 are elevated TSH levels are decreased

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
See similar textbooks
icon
Related questions
Question

Why are Thyroid Stimulating Hormone levels low when T3 and T4 levels are elevated in Grave's Disease?

In Graves' Disease, the pituitary gland is diseased causing low levels of TSH

TSH stimulates T3 and T4 production, so if T3 and T4 are elevated TSH levels are decreased

TRH, TSH, and T3/T4 are regulated by a positive feedback loop, so if T3 and T4 are elevated, TSH would be decreased

TSH inhibits T3 and T4 production, so if T3 and T4 are elevated TSH levels are decreased

Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Anatomy and Physiology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Anatomy & Physiology
Anatomy & Physiology
Anatomy and Physiology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy
Human Anatomy
Anatomy and Physiology
ISBN:
9780135168059
Author:
Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher:
Pearson Education, Inc.,
Anatomy & Physiology: An Integrative Approach
Anatomy & Physiology: An Integrative Approach
Anatomy and Physiology
ISBN:
9780078024283
Author:
Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher:
McGraw-Hill Education
Human Anatomy & Physiology (Marieb, Human Anatomy…
Human Anatomy & Physiology (Marieb, Human Anatomy…
Anatomy and Physiology
ISBN:
9780321927040
Author:
Elaine N. Marieb, Katja Hoehn
Publisher:
PEARSON
SEE MORE TEXTBOOKS