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GE 258 CH 4

Cellularity-composed almost entirely of cells Epithelial Tissue
Special contacts-form continuous sheets held together by tight junctions and desmosomes Epithelial Tissue
Polarity-apical and basal surfaces Epithelial Tissue
supported by connective tissue-reticular and basal laminae Epithelial Tissue
Avascular but innervated-contains no blood vessels but supplied by nerve fibers Epithelial Tissue
Regenerative-rapidly replaces lost cells by cells division Epithelial Tissue
single layer of flattened cells with disc-shaped neclei and sparse cytoplasm Epithelial: Simple Squamous
Function: diffusion and filtration Epithelial: Simple Squamous
Present in the kidney glomeruli, lining of heart, blood vessels, lumphatic vessels and serosae Epithelial: Simple Squamous
single layer of cube-like cells with large, spherical central nuclei Epithelial: Simple Cuboidal
Function in secretion and absorption Epithelial: Simple Cuboidal
Present in the kidney tubules, ducts and secretory portions of small glands, and ovary surface Epithelial: Simple Cuboidal
Single layer of tall cells with oval nuclei; many contain cilia Epithelial: Simple Columnar
Goblet cells are often found in this layer Epithelial: Simple Columnar
Functions in absorption and secretion Epithelial: Simple Columnar
single layer of cells with different heights; some do not reach the free surface Epithelial: Pseudostratified Columnar
Nuclei are seen at different layers Epithelial: Pseudostratified Columnar
Function in secretion and propulsion of mucus Epithelial: Pseudostratified Columnar
Present in the male sperm-carrying ducts and trachea Epithelial: Pseudostratified Columnar
Thick membrance composed of several layers of cell Epithelial: Stratified Squamous
Function in protection of underlying areas subjected to abrasion Epithelial: Stratified Squamous
Forms external part of skin's epidermis, and linings of the esophagus, mouth, and vagina Epithelial: Stratified Squamous
several cell layers, basal cells are cuboidal, surface cells are dome shaped Epithelial: Transitional
Stretches to permit the distension of the urinary bladder Epithelial: Transitional
Lines the urinary bladder, ureters, and part of the urethra Epithelial: Transitional
Functions of connective tissue 1. binding and support 2. protection 3. insulation 4. transportation
Common tissue of origin Mesenchyme
unstructured material that fills the space between cells ground substance
collagen, elastic, or reticular fibers
tought; provides high tensile strength collagen
long; thing fibers that allow for stretch elastic
branched collagenous fibers that form delicate networks reticular
embryonic connective tissue mesenchyme
gel-like matrix with all three connective tissue fibers aerolar connective tissue
wraps and cushions organs aerolar connective tissue
reserves food stores, insulates against heat loss, and supports and protects adipose connective tissue
found under skin, around kidneys, within abdomen, and in breast adipose connective tissue
forms a soft internal skeleton, or stroma, that supports other cell types reticular connective tissue
found in lymph nodes, bone marrow, and the spleen reticular connective tissue
parallel collagen fibers with a few elastic fibers connective tissue proper: dense regular
attaches muscles to bone or to other muscles, and bone to bone connective tissue proper: dense regular
found in tendons, ligaments, and aponeuroses connective tissue proper: dense regular
irregularly arranged collagen fibers with some elastic fibers conntective tissue proper: dense irregular
withstands tension in many directions providing structural stength connective tissue proper: dense irregular
found in the dermis, submucosa of the digestive tract, and fibrous organ capsules connective tissue proper: dense irregualr
supports, reinforces, cushions, and resists compression connective tissue: hyaline cartilage
found in embryonic skeleton, the end of long bones, noes, trachea, and larynx connective tissue: hayline cartilage
maintains shape and structure while allowing flexibility connective tissue: elastic cartilage
supports external ear and the epiglottis connective tissue: elastic cartilage
provides tensile strength and absorbs compression shock connective tissue: fibrocartilage cartilage
found in intervertebral discs, the pubic symphysis, and in discs of the knee joint connective tissue: fibrocartilage cartilage
hard, calcified matrix with collagen fibers found in bone connective tissue: bone
supports, protects, and provides levers for muscular action connective tissue: bone
functions in the transport of respiratory gases, nutrients, and wastes connective tissue: blood
transmits electrical signals from sensory receptors to effectors nervous tissue
long, cylindrical, multinucleated cells with obvious triations muscle tissue: skeletal
inititates and controls voluntary movement muscle tissue: skeletal
found in skeletal muscles that attach to bones or skin muscle tissue: skeletal
branching, striated, uninucleated cells interlocking at intercalated discs muscle tissue: cardiac
propels blood into the circulation muscle tissue: cardiac
found in the walls of the heart muscle tissue: cardiac
sheets of spindle-shaped cells with central nuclei that have no striation muscle tissue: smooth
propels substances along internal passageways muscle tissue: smooth
found in walls of hollow organs muscle tissue: smooth
Created by: evang



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