Filtration of blood; old erythrocytes and platelets
the site of immune response to antigens
Spleen
Is the spleen covered by connective tissue capsule?
a, True
b, False
True
The Spleen is covered by
Simple Squamous epithelium
in lower animals the spleen is known as
myofibroblasts
what is a trabeculae?
is a connective tissue septae that arises from the capsule penetrates the parenchyma
The Parenchyma spleen consists of
White and Red pulp
The red pulp consists of
Cords of cells
sinusoids
the white pulp consists of
Thick accumulation of lymphocytes
Lymphatic nodules which are derived from the germinal centers that decrease age
The germinal centers
decrease age
how many arteries are present in the white pulp?
Capsular artery
Trabecular artery
central artery
what is the capsular artery?
it is a spleenic artery that divides into branches, which runs along a capsule
what is the trabecular artery
a spleenic artery that branches off and runs through the trabeculae
what is the central artery?
this spleenic artery are from the trabecular arteries where branches arises and run through the interior of the parenchyma
During their course the T Lymphocytes immediately surrounds what vessel?
PALS- peri arteriolar lymphatic sheath
what is found around the rich layer of the T cell ?
this is a rich B Lymphocytes
the sheath artery includes
the central artery sorrounded by PALS ans B lymphocytes
What is the marginal zone
a rim of lymphocytes along with APCs and macrophages
Function of the central artery?
helps to differentiation from the lymph node , this is due to the development and enlargement of B lymphocytes of the germinal center on the exposure of antigens
Function of marginal Zones of the nodule.
Trap the antigen from circulation and present the antigen to lymphocytes of the spleen