Thymus Gland Flashcards
This is located in the mediastinum, above the heart, it has two lobes and each lobe is covered by a capsule. Each lobe is divided into smaller lobules by trabeculae.
thymus gland
Where is the thymus gland located?
in the mediastinum above the heart
How many lobes does the thymus gland have, what are they covered by, and how are they divided?
2 lobes
covered by a capsule
each lobe is divided into smaller lobules by trabeculae
What happens to the thymus gland after puberty?
it shrinks
This has an outer covering, and a cortex that surrounds the middle (medulla)?
thymus gland lobules
The thymus gland doesn’t have lymphoid follicles but is instead the site of what?
T cell maturation
The thymus gland is a primary lymphatic organ what are its 3 functions?
- functions in maturation of the T-lymphocytes
- doesn’t destroy antigens
- protected from antigens by blood thymus barrier
The thymus gland functions in the maturation of T-lymphocytes but not what?
T-cell activation
What does the thymus gland not destroy?
antigen
Why is the thymus gland protected from antigens?
because of the blood thymus barrier
the acquisition of specific receptors and self-tolerance
maturation of T lymphocytes
gives them the ability to destroy antigen (foreign invaders)
activation of T lymphocytes