BIOL 2130 Lecture Notes - Lecture 13: Signet Ring Cell, Loose Connective Tissue, Lamina Propria
Document Summary
Forms cushion like discs between vertebrae of the spinal column. Dense connective tissue (dense fibrous tissue: main matrix element is collagen fiber, fibroblasts are cells that make fibers, locations: Ligaments- attach bone to bone at joints and are more elastic than tendons. Functions as a universal packing tissue and glue to hold organs in place. Layer of areolar tissue called lamina propria underlies all membranes. All fiber types form a loose network. Can soak up excess fluid (causes edema) Matrix is an areolar tissue in which fat globules predominate. Many cells contain large lipid deposits with nucleus to one side (signet ring cells) Serves as a site of fuel storage: reticular connective tissue. Delicate network of interwoven fibers with reticular cells (like fiboblasts) Forms stroma (internal framework) of organs, such as these lymphoid organs: Blood cells surrounded by fluid matrix known as blood plasma. Functions as the transport vehicle for the cardiovascular system, carrying:
