Anatomy Lab lymph & immune

3 types of lymph nodes

Cervical, Axillary, Inguinal

Cervical Lymph node

Filters lymphatic fluid from head, neck, throat

Axillary Lymph nodes

Filters lymphatic fluid from breast chest, arms

Inguinal lymph nodes

Filters lymphatic fluid from lower limbs, genitals, and lower abdominal

Spleen

Filters blood

• white pulp- leukocytes

• Red pulp- red bone marrow

MALT

Mucus associated lymphoid tissue (small different colored dots on large intestine)

• clusters of predominantly B cells

• Located in the oral, respiratory, and digestive mucosal

Tonsils

Lingual- behind the tongue

Palatine- middle

Pharyngeal- top

Appendix

Wormlike appendage containing lymphoid nodules that extends from the wall of the first part of the large intestine

Peter’s patches (Ileum)

Lymphoid nodules in the wall of the ileum o the small intestine (opening in the large intestine)

Lymph node

Germinal center, capsule, medullary cords, lymphoid follicle

Tonsil

Germinal center, capsule, lymphoid follicle

Spleen

Capsule, Red pulp, white pulp

Afferent lymphatic vessels

Into lymph nodes

Efferent lymphatic vessels

Leaves lymph nodes (Inguinal)

5 types of Lymph trunks

Jugular, Subclavian, Bronchomediastinal, Intestinal, and Lumbar

• drain fluid

Jugular lymph trunks

Left and Right Jugular trunks (top by start of neck)

• right above subclavian

• drain lymph from head and neck region

Subclavian lymph trunks

Left and Right by clavicle, and right under jugular trunks

• drain upper limbs (arms and shoulders)

Bronchomediastinal lymph trunks

Above heart, behind chest plate (right and left)

• drain thoracic cavity

Intestinal lymph trunks

By stomach, right above left and right lumbar trunk

• drains lower abdominal region

Lumbar Lymph trunks

Underneath intestinal trunks (right and left)

• drains lower half of the body