Thyroid and Parathyroid Glands

Question 1

What is the thyroid gland

Answer 1

Bilobed endocrine gland

Question 2

How are the right and left lobes of the thyroid gland connected?

Answer 2

narrow isthmus

Question 3

Where is the isthmus located?

Answer 3

Overlies the 2nd, 3rd and 4th tracheal rings

Question 4

What is the arterial supply yo the thyroid gland?

Answer 4

Superior thyroid arteries - 1st branch of ECA

Inferior thyroid artery

Question 5

What is the venous drainage of the thyroid gland?

Answer 5

Superior thryoid vein
Middle thyroid vein
Inferior thyroid vein

Question 6

How many parathyroid glands are there?

Answer 6

2 superior and 2 inferior - located on the posterior aspect of each lobe of the thyroid gland