What three regions contain the largest amount of lymph nodes?
Axilla, groin and mammary glands.
Right lymphatic duct drains what areas?
Right limb, right side of head, neck and thorax above umbilicus (skin and subcutaneous)
Thoracic duct drains what regions of the body?
Entire left side of head, neck and thorax, left limb and both lower limbs and also the viscera of the abdomen.
1. In upper limb lymphatic drainage, the superficial lymphatic vessels draining skin and subcute tissue follow which vessels?
2. In upper limb lymphatic drainage, the deeper superficial lymphatic vessels follow which vessel?
1. Basilic and cephalic veins
2. Brachial vein.
1. Head and neck lymphatic drainage is bilaterally symmetrical; true or false?
2. Thoracic lymph drainage is symmetrical; true or false?
3. Abdominal lymph drainage is symmetrical; true or false?
Cisterna Chyli collects lymph from what regions?
All viscera inferior to the diaphragm and lower limbs.
Normal lymph + fat collected by lacteals in the small intestines.
1. What are the primary sites (lymphoid organs)?
2. What're the secondary sites?
3. What happens in primary and secondary sites?
1. Thymus and bone marrow
2. Spleen, lymph nodes, tonsils and GALT
3. Primary: Formation and maturation. Secondary: storage and maturation.
1. Which organ is the largest single mass of lymphoid tissue?
2. What does it filter?
3. What are its three other functions?
3. a. Produce fetal RBCs.
b. Store platelets
c. remove old, defective RBCs
1. 70% of what is found througout the Gastro-Intestinal tract?
2. This tissue is found where?
1. Immune system
2. Appendix and small intestines (Peyers patches)
What are the components of the anterior, posterior, roof and floor of the inguinal canal?
Anterior: External Oblique aponeurosis, reinforced laterally by fibers of int. obl.
Posterior: transversalis fascia and conjoint tendon (fusion of int obl apo + trans abd apo)
Roof: Internal obl and trans abd
Floor: Superior part of inguinal ligament.
Origin of External Oblique?
Insertion of External Oblique?
Origin of Internal Oblique?
Thoracolumbar fascia, ant 2/3 Iliac crest, lateral 1/2 of Inguinal ligament