Human Fetal Circulation

Flow Chart of Fetal Circulation

Anatomy of the Lymphatic System

Functions of the Lymphatic System

1. Drain interstitial fluid

2. Transport dietary lipids

3. Facilitate immune responses

Structure of a Lymph Node

• Outer Cortex: contains B lymphocytes

• Germinal Centers: where B lymphocytes proliferate, also contain Macrophages

• Dendritic cells: Serve as antigen-presenting cells

• Medullary Cords: contain B lymphocytes and Plasma cells (modified B lymphocytes)