Lymphatic System Flashcards
second line of defense of the body
lymphatic system
organ that produce lymphocytes
lymphatic organ
organs that initially produce lymphocytes in the embryo and young animals
primary lymphatic organ
what type of lymphocytes do THYMUS produce?
T-lymphocytes
what type of lymphocytes do BURSA OF FABRICIUS produce?
B-lymphocytes
thymus and bursa of fabricius are examples of?
primary lymphatic organ
A substance that activates T-lympochytes
Thymosin
- Concentric whorls of degenerating epithelioreticular cells
- only found in mammals
Thymic or Hassall’s corpuscle
shaped like a blind sac with a lumen
Bursa
Lining epithelium of Bursa of Fabricius
simple columnar or pseudostratified epithelium
hemal node, lymph node, hemolymph, spleen and hardenian gland are example of?
Secondary lymphatic organs
what mesoderm is involved in the formation of lymph and hemolymph?
Splanchnic mesoderm
Active lymph node contains an NLT with an inner germinal center and an outer peripheral corona
lymph node: cortex
It contains medullary cord (mainly DLT) with medullary sinuses in between them
lymph node: medulla
The medulla is located on the OUTER portion with the medullary cord and sinuses while the cortex is located CENTRALLY where the lymph nodes are located
lymph node of pig
