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Histology

Stack #68415

TermDefinitionWhere/More
Eptithelial tissue closely-joined cells classified by degree fo layering or shape on ALL free SURFACES
Simple Single layer
Stratified Multiple layers
Transitional Multiple layers of differnt types of epithelial tissues found in organs which EXPAND/CONTRACT often - URINARY BLADDER
Squamous flat, scaley
Cuboidal cubed
Columnar column shaped
Connective tissue ISOLATED groups of active cells, classified by physical properties of the matrix 1. LOOSE connective tissue 2. DENSE connective tissue 3. VASCULAR connective tissue 4. CARTILAGES 5. BONE
Muscle Tissue elongated, densley-packed contractile cells (fibers) - classified by location and microanatomy 1. Skeletal (striated) 2. Smooth (visceral) 3. Cardiac (heart)
Skeletal Muscle Striated, Multi-nucleated attached to bones - most in the body
Smooth Muscle Visceral, Non-striated, Tapered, Mono-nucleated surrounds hollows in organs
Cardiac Striated, Banded, Mono-nucleated, Branched Heart only
Nerve Tissue long, wirey cell processes, often with stellate bodies Brain and Spinal Column
Neurons Nerve Tissue impulse generation and conduction
Neuroglia Nerve Tissue supportive/insulative
Glands clusters (involutions/ducts) of epithelial cells usually cuboidal
Exocrine gland external secretion via a duct sebum, sweat
Endocrine internal secretion into the bloodstream
Body Membranes combinations of epithelia and connective tissue Mucous Membranes and Serous Membranes
Mucous Membranes different types of epithelium upon Loose connective tissue the lining of hollow organs (almost the entire GI Tract) - Functions: SECRETION and ABSORPTION
Serous Membranes Squamous epithelium over Loose connective tissue double lining of closed cavities: parietal layer = lines the cavity; visceral layer = covers the organ - Function: produces a watery secretion that REDUCES FRICTION
Areolar Tissue LOOSE Connective tissue - RANDOMLY placed cells (Fibroblasts and Macrophages) Matrix: LONG, thread-like fibers made of COLLAGEN and ELASTIN protein. CONNECTS the SKIN to underlying TISSUE and fills spaces BETWEEN ORGANS. -LARGE cells = MACROPHAGES -SMALL cells = FIBROBLASTS -THIN fibers = COLLAGEN -THICK fibers = ELASTIN
Adipose large FAT-filled cells, TIGHTLY packed in SPARSE, NON-fibrous matrix THROUGHOUT the body, especially UNDER the SKIN, amid SKELETAL muscle, and INSIDE long BONES
Hyaline Cartilage clumped cells (chondrocytes), invisible matrix forms CONNECTIONS between RIBS and STERNUM, at the ends of long bones, and surrounding the TRACHEA
Elastic Cartilage clustered chondrocytes scattered amid SHORT, WAVEY, ELASTIN fibers in a COLLAGEN matrix external EAR, EPIGLOTTIS, and EUSTACHIAN tubes
Fibrocartilage small cells, Matrix: PARALLEL bundles of COLLAGEN fibers ARTICULAR DISCS, in larger JOINTS, and PUBIC SYMPHYSIS
Compact Bone ISOLATED cells (osteocytes)in Matrix of inorganic SALTS and COLLAGEN; cells are arranged RADIALLY around HAVERSIAN CANALS ALL BONES of the skeleton
Blood RBC and WBC in liquid matrix (plasma) throughout the CIRCULATORY system
Haversian Canals house small BLOOD VESSELS and NERVE fibers in BONE
Created by: kristel387