Ch.4: Tissues, Connective Tissue Flashcards
The most abundant and widely distributed of the primary tissues
Connective tissue
Connective tissues 5 major functions are ______
Binding and supporting Protecting Insulating Storing Transporting
4 Characteristics of Connective tissues include
Deeper tissue, large intracellular spaces, varies in vascularity, nonliving extracellular matrix
Connective tissue has three main elements _______
Ground substance, fibers, and Cells
Unstructured material that fills space between the cell and contains the fibers. Composed of interstitial (tissue) fluid, cell adhesion proteins and proteoglycans
Ground Substance
The three connective fibers are ____
Collagen fiber, elastic fiber, reticular fiber
Type of fiber that are extremely tough and provide high tensile strength
Collagen fibers
Type of fiber that are long, thin fibers that form branching networks in the extracellular matrix. Allows them to be stretch and recoil like rubber bands. Found where great elasticity is needed, skin, lungs, and blood vessel walls
Elastic fibers
Type of fiber that are short, collagenous fibers. branch extensively, forming delicate networks. surround small blood vessels and support the soft tissue of organs.
Reticular fiber
7 types of Tissue cells
Erythrocytes Leukocytes Thrombocytes (blood clotting) adipocytes chondrocytes osteocytes fibrocytes
Mast cells function is to ______
detect foreign microorganisms and initiate local inflammatory responses against them
An anticoagulant chemical that prevents blood clotting when free in the bloodstream
Heparin
substances that make capillaries leaky
Histamine
Irregulary shaped cells that avidly phagocytize foreing particles, viruses, bacteria, dead tissues, central actors of the immune system
Macrophages
A mature connective tissue arise from a common embryonic tissue
Mesenchyme