thyroid hormone

Question 1

Describe the basic structure of the thyroid gland

Answer 1

Cluster of follicles surrounded by connective tissue

Question 2

What region of the thyroid gland produced T4 and T3

Answer 2

Colloid

Question 3

What is the function of TSH (thyroid stimulating hormone)

Answer 3

Increase iodide uptake

Question 4

What makes up a thyroid hormone

Answer 4

Thyroglobulin

Question 5

What is T3

Answer 5

A deiodinated T4

Question 6

What type of feedback is the thyroid hormone release in mechanism

Answer 6

Negative feedback, TSH is released from hypothalamus to anterior pituitary, TSH is released to the thyroid gland and causes the release of T3 + T4. These inhibit the secretion of TSH. (Affects both pituitary gland and hypothalamus)

Question 7

What conditions cause the release of Thyroid hormone

Answer 7

Low temperature

Question 8

What is hypothyroidism

Answer 8

Low levels of thyroid hormone
Primary: to do with the thyroid gland itself
Secondary: problem with the hypothalamus or pituitary gland

Question 9

What is hyperthyroidism

Answer 9

Excessive TH production - cause increased metabolic rate

Question 10

What is Goitre

Answer 10

Enlarged thyroid gland