A&P Chapter #20

Lymphangitis

Inflamed lymphatic vessels

Lymphadenopathy

refers to the swelling of lymph nodes which can be secondary to bacterial, viral, or fungal infections, autoimmune disease, and malignancy.

Bubo

an infected, swollen node; sign of bubonic plague.

Lymphoma

Any neoplasm of the lymphoid tissue; Hodgkins and non-Hodgkins.

Hodgkin’s disease

A type of lymphoma; swollen, non-tender nodes, high cure rate.

Lymphatic Filariasis

A disease in which the lymphatics become inflamed due to an infection by filarial worms; lymph can’t return to the circulatory system; localized edema 

Splenomegaly

An enlarged spleen due to microbial infection.

Tonsillitis

Inflamed tonsils due to microbial infection; tender and swollen

Mastectomy

Surgical removal of the breast tissue due to cancer

Radical mastectomy

Removal of breast, underlying muscle, and axial nodes

Modified radical mastectomy

Removal of breast tissue only and nodes

Spleen

located in the upper part of the abdomen above the stomach and under the rib cage. It’s part of the lymphatic system and functions as a filter, storage, and immune defense.

Tonsils

located in the pharyngeal region, they filter saliva and mucus, not lymph. Lymphatic tissue is found within the tissue.

Appendix

Tubular offshoot of the larg intestine; contains lymph follicles.

Peyer’s patches

Groups of lymphocytes in the intestinal mucosa.

Lymph nodes

Filters the lymphatic fluid.

Lacteals

found in the wall of the small intestines, Their primary role is to absorb dietary fats, and fat-soluble vitamins from digested food.

Lymphoid follicles

Small clusters of dormant B lymphocytes. They are found within lymphoid tissue and organs, and play a central role in the body’s adaptive immune response.

Right lymphatic duct

Filters lymph form the (1) Right arm (2) Right upper chest, face, and head.

Thoracic duct

Filters lymph from the (1) Left arm (2) Left and right legs (3) Left upper chest and face (4) Abdominal area

Lymph vessel structure

Thicker walls than capillaries, with smooth muscles that helps lymph movement. Has valves that prevent back flow. Function is to transport lymph toward lymph nodes and larger ducts.

Lymph

Found in loose connected tissue; it is a clear, slightly yellowish fluid that circulates through the lymphatic system. functions in fluid balance, immune surveillance, and fat transport