The letter T in T-lymphocytes refers to
Thymus
The correct option is B.
Explanation of the correct option:
Explanation of the incorrect option:
Option A:
A popular blood test to assess how effectively the thyroid gland is functioning is the thyroid-stimulating hormone (TSH) test.
Option C:
The tonsils are a pair of soft tissue masses at the back of the throat called palatine tonsils (pharynx).
Option D:
The medial and lateral geniculate nuclei, the pulvinar, and the lateral nuclei of the thalamus are all located in the lateral section of the brain, which is the phylogenetically youngest region of the thalamus (neothalamus).
Final answer:
The letter T in T-lymphocytes refers to thymus.