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61 Cards in this Set
- Front
- Back
study of tissue is called
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histology
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what are the three primary germ layers
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ectoderm
endoderm mesoderm |
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gives rise to the epidermis and the nervous system
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ectoder
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gives rise to digestive tract nad respitory tract
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endoderm
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gives rise to muscle,bone,blood
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mesoderm
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what are the 4 classes of tissue
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muscle tissue, nervous tissue, connective tissue, and epithelial tissue
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composed of cells specialized for contraction
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muscular tissue
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skeletal tissue
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\cells are strited(banded) and multinucleated,
cyndrical, and lie in parallel, usually attached to bones, |
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cardiac
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shortr thin branching cells
only found in heart produces heartbeat cells are called mytocytes |
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smooth tissue
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non straighted one nucleus per cell
are spindel shaped and short |
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consists of two types of cells
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nervous tissue
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neurons
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functional unit of of the nervous system
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composed of soma(cell body), dentrites(fibers that recieve message) and one axon(nerve fiber that conveys message away from soma
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neurons
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protect and support the neurons(often called helper cells)
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neuroglia
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most abundant, variable, and widely distributed tissue in the body
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connective tissue
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most common cells; produce fibers and ground substance
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fibroblast
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are macrophages
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histiocytes
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provide immune defense
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leukosytes
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produce antibodies
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plasma cells
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produces heparin and histamine
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mast cells
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fat cells
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adipocytes
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are made of protiens
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fibers``
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tough flexibleand resist streching "white fibers"
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collagenous fibers
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thin collagen in reticular conn
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reticular fibers
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composed of protein and elastin "yellow fiberss"
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elastic fibers
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types of fibers
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collagenous fibers
reticular fibers elastic fibers |
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loose connective tissue
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areolar
adipose reticular |
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types of dense connective tissue
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dense regualr
dense irregular |
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loosely organized fibers and all 6 cell types
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areolar tissue
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ais areolar tissue with adipocytes(fat cells)
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adipose tissue
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reticular tissue
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composed of of reticualr fibers
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dense regular
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all fibers run in parallel;tissue of tendons and ligaments
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dense irregular run in random direction
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dense irregular tissue
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composed of cells called chrondroblast
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cartilage
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smooth glassy, found at the ends of bones and movable joints
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hyaline cartilage
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is yellow has ellastic fibers found in outer ear
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ellastic cartilage
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fibro cartilage
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parallel fibers forms in vertible disc and pubis symphasis
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fills heads of shafts of long bone
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spongy bone
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compact bone
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forms exterior of all bones
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teeth are composed of of dentine and cementum
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dental tissue
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consist of ground subsatance(plasma) and formed elements, the formed elements are red blood cells(erythrocytes), white blood cells
(leukocytes), and platelets |
blood
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is the fluid that flow through lymphatic vessels
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lymph
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covers body surface, lines cavaties, and covers many organs
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epithelial tissue
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simple epithelia types
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simple squamous epithelium
simple cubodial epithelium simple columnar epithelium pseudostrfied epithelium |
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well adapted for transporting substances across; lines alveoli
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simple squamous epithelium
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common in glands;lines kidney tubules
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simple cubodial epithelium
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has secretory function; absorbs nutrients in small intestine
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simple columnar epithelium
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found in respitory tract
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pseudostratified epithelium
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types of stratified epithelia
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stratified squamos epithelium
stratified cubodial epithelium stratified columnar epithelium tansitional epithelium |
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tissue of epidermis of skin
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srtatified squamos epithelium
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lines follicles of ovary and seminiferous tubules in testes
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stratifiea cubodial epithelium
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type of tissue found in anal canal and pharynx
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stratified columnar epithelium
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type of tissue found in urinary system
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transitional epithelium
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occur between adjacent cells
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intercelular junction
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formed by zipper like fusion of membrane proteins
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tight junction
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"spot weld" holds cells together resist mechanical stress
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desmosomes
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formed by ring like structure made up of membrane protiens;allow chemicals and nutrients to pass from cell to cell
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gap junctions
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made up of individual cell organs that produce substance and secret it elsewhere
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glands
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types of glands
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endocrine glands
exocrine glands |
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ductless glands;secret harmones into bloodstream
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endocrine glands
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have ducts;secret their products (not harmones) into ducts
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exocrine glands
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