Thymus
ldentification Points
1. Lobules separated by incomplete
fibrous septa.
2. Each lobule contains peripheral cortex
of densely packed small lymphocytes and
central medulla with sparsely arranged
larger lymphocytes and Hassall's corpuscles.
Tonsil
ldentification Points
1. Surface lined by stratified squamous
non-keratinized epithelium.
2. Surface shows depressions called
tonsillar crypts.
3. Lymphoid follicles with germinal center
seen along the crypts.
Spleen
Identification Points
1. Red pulp, white pulp differentiated.
2. White pulp-lymphoid aggregations with
eccentric central artery.
3. Red pulp contains splenic cords
surrounded by sinusoids,
Lymph Node
Identification Points
1. Fibrous capsule and subcapsular
space seen.
2. Outer cortex, inner medulla differentiated.
3. Cortex contains łymphoid follicles
with germinal center.
Medulla contains medullary cords
and sinuses.