Follicular cell Reference Libraries
The thyroid gland is an endocrine gland located anterior to the trachea and inferior to the thyroid cartilage. It is butterfly shaped with three lobes that make it the largest endocrine organ in the body. Its primary function is to control the body’s metabolism by regulating how quickly the body uses energy, proteins, and hormones. The two lateral lobes are connected by the middle lobe...
- Having no light.
- Of or relating to the region of a body of water that is not reached by sunlight and in which photosynthesis is unable to occur.