Thyroid hormones

Question 1

Follicular cells

Answer 1

Responsible for the production & secretion of thyroid hormones

Question 2

Parafollicular cells

Answer 2

secrete calcitonin which acts to reduce blood Ca++

Question 3

Parathyroid glands

Answer 3

Secrete parathyroid hormone which increases blood Ca++ concentrations

Question 4

Hyperthyroidism

Answer 4

Overproduction of T3 & T4
Increased metabolic heat = decreased weight. Warm sweaty skin
Increased muscle protein catabolism resulting in muscle weakness & weight loss
Increased nervous system activity resulting in hyper-excitablility of reflexes, irritability and insomnia
Increased Heart Rate resulting in fatigue & difficulty regulating blood
Restless, Goiter, Diarrhea