Thymus Flashcards
1
Q
Thymus Develops from which pharyngeal pouch?
A
3rd
2
Q
Thymus Develops from which embryonic layer?
A
Endoderm
3
Q
Types of epithelial cells in thymus
A
Thymic (Hassall’s) corpuscles
Epithelial reticular cells - thought to secrete hormones that influence T cell differentiation
4
Q
Path of descent and final position of thymus
A
Descend anterior to all major structures to sit in anterior mediastinum
5
Q
Changes in thyroid with age
A
Doubles in size shortly after birth then stays same size in old age but lymphoid component decreases
