Endocrine Disorders I (N5315 Mod 8 Exam4) Questions with Complete solutions

Thyroid Stimulating Hormone (TSH) Correct Answer--secreted by pituitary gland -regulates thyroid hormone secretion T3 and T4 Correct Answer--both released by thyroid gland -transported by albumin or thyroxine-binding globulin (TBG) in blood -stored as thyroglobulin (TG) to last 2-3 months Functions of T3 and T4 Correct Answer--increase metabolism -maintenance of muscle tone -skeletal muscle maturation -antagonizes insulin -regulates cellular metabolism -heat production -maintain cardiac output, contraction, and rate -maintain GI secretions -assist Calcium mobility -stimulate lipid metabolism, free fatty acid release, and cholesterol synthesis T4 (Thyroxine) Correct Answer--90% of the hormone released from thyroid -less potent