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70 Cards in this Set
- Front
- Back
matrix
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extracellular material that surrounds cell.
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matrix is composed of
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fibers and ground substances
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types of tissue preparation
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fixation, section, stain and observations
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fixation
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phermedahide so tissue doesn't rott.
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planes of section
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long, cross, transverse and oblique
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primary tissue classes
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epthelial, connective , nervous and muscular
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epthelial tissue clas
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cover or line body parts and form glands
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connective tissue class
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diverse and connect things together
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nervous
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specialize cell. allows communication from one cell to another
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muscular
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specialized for contractions and able to shrink
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epithelial tissues
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one of more layers. very little space. exposed surface. basement membrane connects to another tissue to get supplies because it avascular.
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epithelial tissue is characterized by..
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number of layers and shape of cells
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simple cell is
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one layer
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stratified cell is
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more than one layer.
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pseudostratified columar
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... looks like a bunch but all connects to base. has goblet cells.
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goblet cells
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secretes mucus
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simple squamous are
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endothelium and mesothelious
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endothelium
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lining lumina of blood and lymphatic vessels
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mesothelium
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covers visceral organs and lines body cavities
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simple cuboidal are in
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most kidney tubules and salivary ducts
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pseudostratified cells are in
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mucosa of the trachea and respiratory tract from the nasal cavity to bronchi
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keratinized strat. squamous
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foot epidermis and palms. cells becoming flat and scaly toward front. surface is dead cells with no nuclei. resist abrasion, water loss and penetratration
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non keratinized strat. squamous
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vaginal mucosa, tounge , esophagus and anal canal. no dead layer of cells. resist abrasion and penetratration
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strat. cuboidal in?
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sweat glands, ovaries and testies
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transtional epithelium
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resembles strat. squamous. except surface layer is round. stretches by flattening cells-bladder... urinary tract
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connective tissue categories
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fibrous connective tissue, adipose tissue, supportive connective tissue, and fluid connective tissue.
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extracellular space..
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takes up more room than the cell. no free surface
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connective tissue functions
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binding organs, support, protection , movement, storage,heat production, and transport
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fibrous connective tissue is
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most diverse, nearly all contain fibers and consist of ground substance
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components of fibrous connective tissue
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fibroblasts, macrophages, leukocytes, plasma cells, mast cells and adipocytes
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fibroblast produce
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fibers and ground tissue
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macrophages is
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large phagocytic cells. wander though connective tissue
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plasma cells does what?
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synthesizes disease fighting proteins called antibodies
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mast cells does what?
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inhibits blood clotting. secrets histamine.
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histamine does..
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increases blood flow by dilating blood vessels
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fibroblasts produces what types of fibers
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collagenous fibers, reticular fibers and elastic fibers
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collagenous fiber
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tough and flexible and resist stretching. 25% of the body's protein
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reticular fibers
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from a spongy like frame work for such organs and spleen and lymph nodes
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elastic fibers
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thinner than collagenous fiber. made up of protein called elastin.
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elastin ...
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coiled structure allows it to stretch and recoil like a rubber band
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type of fibrous connective tissue
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loose and dense
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loose connective tissue
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areolar and reticular
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dense connective tissue
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regular and irregular
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areolar
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abundant, binds epthelial to deeper tissue. mostly collagenous but also elastic and reticular. underlying epithelia, surrounding blood vessels, nervous between muscles and skin. binging and packing material. flexible and strong in any direction
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reticular
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supports lymphatic organs. spleen. lymph node and bone marrow. loose net work of reticular fibers and cells.
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dense regular conective tissue.
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parallel collagen fibers. slender fibroblast nuclei and compressed between collagen bundles. little open space. avascular. tendons and ligaments
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irregular connective tissue
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random arrangement . strong and multiple directions. most dermis. protective capsules- kidney testies and spleen
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adipose tissue
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adipocytes. nucleus pressed against membrane. empty looking.
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cartilage is
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chondroblasts, rubbery matrix, lacunae, chondrocytes and avascular
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three types of cartilage
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hyaline, elastic, and fibrocartilage
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hyaline cartilage
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clear and glassy matrix. collagen fibers Fine and not visible. chondrocytes enclosed in lacunae. functions. ease joint movement, holds airway open,forms growth zones for babies
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elastic cartilage
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external ear. elastic fibers form Web like mesh amid lacunae. provides flexibility
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fibrocartilage
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parallel collagen fibers. rows of chondrocytes in lacunae between fibers. where? pubic symphysis, intervertebral discs and menisci. function resist compression and absorbs shock in some joints
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bone tissue
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spongy bone and compact bone
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compact bone stuff
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osteon bone tissue cell as a whole. central canal in the middle. canaliculi give supply to cells. lamellar are the rings.
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blood is
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a liquid connective tissue. consist of ground substance called plasma and formed elements
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formed elements are
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cells and cell fragments
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nervous tissue
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communication with electric and chemical signals. consist of neurons and neuroglia.
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neuroglia
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protect and assist neurons
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dendrites
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receive signals from other cells and transmits it the soma
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axon
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sends outgoing signals
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muscle tissue
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skeletal cardiac and smooth. all move from contractions
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skeletal muscle tissue
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muscular fibers, striations, voluntary and multiple nucluei
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cardiac muscle tissue
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striations but different direction. intercalated disc space where striations split.
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smooth muscle tissue
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non striated, fusiform, involuntary. in stomach
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glands
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secretes substance for use in body or waste disposal. digestive enzymes. mostly epithelial tissue some connective tissue
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exocrine glands
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maintian contact with surface way of duct. maybe be released to body surface.
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4 types of extocrines glands
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serous glans- thin watery fluid
mucous glands- absorb water for mucus mixed glands- both serous and mucous cytogenic glands- whole cells testies and overies |
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endocrine glands
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no contact with surface. use hormones not ducts.
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unicellular glands
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isolated gland cells found in epithelium example goblet cells
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