During thyroid hormone secretion,
A) the follicular cells phagocytize a piece of colloid
B) T4 and T3 are removed from thyroglobulin by lysosomal enzymes in the follicular cell; then they diffuse out of the cell and into the blood
C) T4 and T3 are secreted by exocytosis of the colloid that has been internalized by the follicular cells
D) both a and b occur
E) both b and c occur
Correct Answer:
Verified
Q3: _ would not decrease thyroid hormone production.
A)A
Q4: Most of the secreted T₄ is
A)phagocytized by
Q5: Thyroid hormones
A)regulate basal metabolic rate
B)are released from
Q6: Thyroid hormone does not
A)increase metabolic rate
B)increase tissue
Q7: TSH
A)secretion is stimulated by thyrotropin-releasing hormone (TRH)
B)secretion
Q9: Thyroid-stimulating immunoglobulin is
A)able to stimulate production of
Q10: Thyroid hormone causes
A)the pituitary to release less
Q11: Thyroid hormones are
A)derivatives of an amino acid
B)produced
Q12: Hyperthyroidism can be due to all of
Q13: Thyroxine (T₄)
A)is formed by coupling one MIT
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