Breadcrumb Home Hematopoietic & Lymphatic System Block HLS 122 HLS 122: Hematopoietic & Lymphatic System Download as PDF Class Program Hematopoietic & Lymphatic System Block Credits 2 This is a multidisciplinary block integrating topics in basic and applied clinical anatomy, histology, embryology, and physiology related to hemopoietic system. Prerequisites None Corequisites CVP 121, REN 123