BIOL 205 Lecture Notes - Lecture 32: Theca Interna, Extracellular Fluid, Thoracic Wall
Document Summary
Excess interstitial fluid and solutes enter lymph vessels: after entering vessels, it is call lymph, increasingly larger lymph vessels in lymph network. Components of the lymphatic system: lymph is comprised of: T-lymphocyte (white blood cells that mature in thymus) b. ii. T and b are acquired and specific immunity cells b. iii. Present in childhood, degenerates during puberty (no longer functioning) b. i. 4. Structure of lymph node b. ii. 2. a. b. ii. 2. b. b. ii. 2. c. b. ii. 2. d. Cortex filled with t-lymphocytes, b- lymphocytes, dendritic cells b. iii. Initiates an immune response when antigens are found in blood (white pulp function) b. iii. 1. b. Serves as a reservoir for erythrocytes and platelets (red pulp function) b. iii. 1. c. Phagocytizes old, defective erythrocytes and platelets (red pulp function) b. iii. 1. d. Divided into red pulp (contain erythrocytes, macrophages, platelets) and white pulp (contain t and b- lymphocytes) Lymph tracing: a post-capillary venule (which branches from capillaries of the axillary region)
