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Thyroid & Parathyroi
Unit 4 section 4
Question | Answer |
---|---|
What hormones does the thyroid gland produce? | Thyroxin (T4) & tri-iodothyronine (T3) Calcitonin |
What does calcitonin do? | Lowers blood calcium by decreasing osteoclast activity & rate of bone reabsorption |
What are the functions of T4 & T3 | Regulate O2 uptake by cells & metabolism, essential for normal growth |
How many parathyroid glands are there? | 4 |
What hormone does the parathyroid glands produce? | Parathyroid hormone (PTH) |
What is the function of PTH? | Increases blood calcium levels |
How does it increase blood calcium levels? | Increases absorption of calcium from the GI system & reabsorbs calcium from bones |
Where can these glands be found? | Either side of the trachea |