Collective name of tissue types that includes epithelial, connective, nervous, and muscular tissues.
Histological term for extracellular material.
Primary Germ Layers
Name of the strata of the first organization of human cells into tissues during development.
Outer layer of germ cells that forms the epidermis and nervous system.
Inner layer of germ cells that forms mucous membranes of digestive and respiratory tracts.
Middle Layer of germ cells that gives rise to muscle, bone, and blood.
Gelatinous tissue composed of collagen fibers and branching cells.
Covers the surface of the body, lines the body cavities and organs, and constitutes the majority of glandular tissue.
Layer between epithelium and underlying connective tissue.
Mucous secreting cell.
Simple Squamous Epithelium
Single layer of flattened cells such as alveoli in the lung.
Simple Cuboidal Epithelium
Single layer of square or round cells such as tubules in the kidney.
Simple Columnar Epithelium
Single layer of tall, narrow cells, oval or sausage shaped nuclei such as the lining of the digestive tract.
Appears as multilayered; some cells don't reach the apical surface but all reach the basement membrane; located in the lining of the upper respiratory tract.
Stratified Squamos Epithelium-Keratinized
Multiple cell layers with cells becoming increasingly flat toward the surface; surfacecovered with a layer of compact dead cells without nuclei.
Stratified Squamos Epithelium-Nonkeratinized
Multiple cell layers with cells becoming increasingly flat toward surface without a superficial layer of dead cells.
Stratified Cuboidal Epithelium
Two or more layers of cells with the surface cells square or round.
Multiple cell layers with cells either round or flat depending on distension.
Type of tissue that is most abundant and serves to support, bind, and protect organs.
Cells that produces fibers and ground substance in connective tissue.
Large phagocytic cells that can engulf and digest microbes and debris.
Cell that synthesizes antibodies.
Cell that secretes heparin and histamine.
Scientific name for a fat cell.
Fibers made of collagen that are tough and flexible but resist stretching.
Thin collagen fibers coated with glycoprotein that form sponge-like frameworks.
Fibers made of elastin which allow stretching and recoiling.
Gelatinous material occupying space around cells and fibers.
Long polysaccharide composed of amino sugars and uronic acid.
GAG responsible for the stiffness of cartilage.
A part of the ground substance that helps hold tissue together and slows pathogens by creating thick colloids.
Protein-Carbohydrate complexes that bind plasma membrane proteins to collagen and proteoglycans outside the cell.
Loose Connective Tissue
Type of fibrous connective tissue comprised mostly of ground substance.
Dense Connective Tissue
Type of fibrous connective tissue comprised mostly of cells.
Contains all six connective tissue cell types and has abundant blood vessels.
Mesh of fibers and fibroblasts that forms the structural framework of many organs.
Tissue comprised of mostly adipocytes.
Dense Regular Connective Tissue
Closely packed collagen fibers running parallel to each other.
Cartilage cell that secretes matrix.
Small cavities that contain chondrocytes.
Type of cartilage with very fine collagen fibers that give it a glassy appearance.
Type of cartilage with large amounts of elastin.
Types of collagen with coarse, visible bundles of collagen.
Scientific name for bone tissue.
Type of bone that fills the head of long bones.
Type of bone that forms the external surface of all bones.
Cylindrical arrangements of compact bone.
Layers surrounding the haversian canal where the bone matrix is deposited.
Collective name of haversian canal and surronding lamellae.
Mature bone cells.
Delicate canals radiating from each lacuna which allow osteons to communicate.
Tough fibrous covering on all bone.
Scientific name for red blood cell.
Scientific name for a nerve cell.
Cell that protects and assists neurons.
Cell body of a neuron.
Short branched process that extends from soma and carries impulses toward the soma.
Long process extending from soma that carries impulses away from the soma.
Tissue type that responds to stimulation by contracting.
Muscle type that is usually attached to bone and consists of long, cylindrical fibers.
Cause by overlapping filaments, it gives muscle a banding appearance.
Muscle type found in the heart.
Junctions connecting cardiac myocytes.
Muscle type that lacks striations and is involuntary
Cellular junction that binds neighboring cells firmly and makes them water tight.