Thyroid

Question 1

Type I deiodinase

Answer 1

Outer ring and inner ring
PRIMARY source of T3 in circulation

Liver, kidney, thyroid, skeletal muscle

Question 2

Type II deiodinase

Answer 2

Outer ring
Makes T3 and rT3
Pituitary senses these levels and gives feedback

Brain, pituitary, placenta, cardiac muscle

Question 3

Type III deiodinase

Answer 3

Inner ring
Only makes rT3
Brain, placenta, skin

Question 4

BMR

Hypothyroid

Answer 4

Overall decreased

Question 5

Carbohydrate metabolism

Hypothyroid

Answer 5

DEC gluconeogenesis
DEC glycogenolysis
Normal serum glucose

Question 6

Protein metabolism

Hypothyroid

Answer 6

DEC synthesis

DEC proteolysis

Question 7

Lipid metabolism

Hypothyroid

Answer 7

DEC lipogenesis
DEC lipolysis
IN serum cholesterol

Question 8

Thermogenesis

Hypothyroid

Answer 8

Decreased

cold intolerant

Question 9

BMR

Hyperthyroid

Answer 9

Overall increased

Question 10

Carbohydrate metabolism

Hyperthyroid

Answer 10

IN gluconeogenesis
IN glycogenolysis
Normal serum glucose

Question 11

Protein metabolism

Hyperthyroid

Answer 11

IN synthesis
IN proteolysis
Muscle wasting

Question 12

Lipid metabolism

Hyperthyroid

Answer 12

IN lipogenesis
IN lipolysis
DEC serum cholesterol

Question 13

Thermogenesis

Hyperthyroid

Answer 13

Increased

heat intolerant