| Term 
 | Definition 
 
        | Simple Squamous Epithelium 
 Description: Single layer of flattened cells
 disc-shaped nuclei
 
 Function: Diffusion and filtration (in sites where protection is not important)
 
 Location: Kidney glomeruli, air sacs of lungs
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        |  | 
        
        | Term 
 | Definition 
 
        | Simple Squamous Epithelium 
 Description: Single layer of flattened cells
 disc-shaped nuclei
 
 Function: Diffusion and filtration (in sites where protection is not important)
 
 Location: Kidney glomeruli, air sacs of lungs
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        |  | 
        
        | Term 
 | Definition 
 
        | Simple Squamous Epithelium 
 Description: Single layer of flattened cells
 disc-shaped nuclei
 
 Function: Diffusion and filtration (in sites where protection is not important)
 
 Location: Kidney glomeruli, air sacs of lungs
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        |  | 
        
        | Term 
 | Definition 
 
        | Simple Cuboidal Epithelium 
 Definition: single layer of cubelike cells with large, spherical nuclei
 
 Function: Secretion and absorption
 
 Location: kidney tubules, ducts and secretory portions of small glands, ovary surface
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        |  | 
        
        | Term 
 | Definition 
 
        | Simple Cuboidal Epithelium 
 Definition: single layer of cubelike cells with large, spherical nuclei
 
 Function: Secretion and absorption
 
 Location: kidney tubules, ducts and secretory portions of small glands, ovary surface
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        |  | 
        
        | Term 
 | Definition 
 
        | Simple Columnar Epithelium 
 Description: single layer of tall cells with round to oval nuclei
 
 Function: absorption, secretion of mucus and other enzymes (ciliated type propel mucus0
 
 Location: non-ciliated line digestive tract, ciliated line small bronchi
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        |  | 
        
        | Term 
 | Definition 
 
        | Simple Columnar Epithelium 
 Description: single layer of tall cells with round to oval nuclei
 
 Function: absorption, secretion of mucus and other enzymes (ciliated type propel mucus0
 
 Location: non-ciliated line digestive tract, ciliated line small bronchi
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        |  | 
        
        | Term 
 | Definition 
 
        | Stratified Squamous Epithelium 
 Description: thick membrane composed of several cell layers.  Basal cells are cuboidal or columnar.  Surface cells a flattened (squamous).
 
 Function: protects underlying tissue in areas subject to abrasion.
 
 Location: keratinized type form epidermis. non-keratinized form moist linings of esophagus, mouth, and vagina.
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        |  | 
        
        | Term 
 | Definition 
 
        | Stratified Squamous Epithelium 
 Description: thick membrane composed of several cell layers.  Basal cells are cuboidal or columnar.  Surface cells a flattened (squamous).
 
 Function: protects underlying tissue in areas subject to abrasion.
 
 Location: keratinized type form epidermis. non-keratinized form moist linings of esophagus, mouth, and vagina.
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        | Term 
 | Definition 
 
        | Stratified Cuboidal Epithelium 
 Description: generally two layers of cubelike cells.
 
 Function: Protection
 
 Location:  largest ducts of sweat glands, mammary glands, and salivary glands
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        |  | 
        
        | Term 
 | Definition 
 
        | Stratified Columnar Epithelium 
 Description: several cell layers.  basal cells are cuboidal, superficial cells are elongated and columnar.
 
 Function: Protection and secretion
 
 Location: Rare in the body, small amounts in male urethre and in large ducts of some glands
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        |  | 
        
        | Term 
 | Definition 
 
        | Pseudostratified Columnar Epithelium 
 Description: single layer of cells of differing heights, nuclei seen at different levels
 
 Function: secretion, particilularly mucus, ciliated versions propel mucus
 
 Location: ciliated variety line trachea, non-ciliated type in male sperm-caryying ducts
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        |  | 
        
        | Term 
 | Definition 
 
        | Pseudostratified Columnar Epithelium 
 Description: single layer of cells of differing heights, nuclei seen at different levels
 
 Function: secretion, particilularly mucus, ciliated versions propel mucus
 
 Location: ciliated variety line trachea, non-ciliated type in male sperm-caryying ducts
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        |  | 
        
        | Term 
 | Definition 
 
        | Transitional Epithelium 
 Description:  resembles stratified squamous and stratified cuboidal.  Basal cells are cuboidal or columnar, surface cell are dome or squamous shaped, depending on stretch.
 
 Function: stretches readily and permits distension of urinary organ by contained urine.
 
 Location: lines ureters, urinary bladder, and part of the urethra.
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        |  | 
        
        | Term 
 | Definition 
 
        | Transitional Epithelium 
 Description:  resembles stratified squamous and stratified cuboidal.  Basal cells are cuboidal or columnar, surface cell are dome or squamous shaped, depending on stretch.
 
 Function: stretches readily and permits distension of urinary organ by contained urine.
 
 Location: lines ureters, urinary bladder, and part of the urethra.
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        | Term 
 | Definition 
 
        | Areolar, Loose Connective Tissue 
 Description: gel-like matrix with all three fiber types; cells: fibroblasts, macrophages, mast cells, and some white blood cells.
 
 Function: wraps and cushions organs
 
 Location: widely distributed under epithelia of body, packages organs, surrounds capillaries
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        |  | 
        
        | Term 
 | Definition 
 
        | Areolar, Loose Connective Tissue 
 Description: gel-like matrix with all three fiber types; cells: fibroblasts, macrophages, mast cells, and some white blood cells.
 
 Function: wraps and cushions organs
 
 Location: widely distributed under epithelia of body, packages organs, surrounds capillaries
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        |  | 
        
        | Term 
 | Definition 
 
        | Adipose, Loose Connective Tissue 
 Description: Matrix as in areolar, but very sparse.  closely packed adipocytes.  Nucleus is pushed aside by large fat droplets.
 
 Function: provides reserved fuel, insulates against heat loss, supports and protects organs.
 
 Location: under skin, around kidneys and eye-balls, within abdomen and breasts.
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        |  | 
        
        | Term 
 | Definition 
 
        | Adipose, Loose Connective Tissue 
 Description: Matrix as in areolar, but very sparse.  closely packed adipocytes.  Nucleus is pushed aside by large fat droplets.
 
 Function: provides reserved fuel, insulates against heat loss, supports and protects organs.
 
 Location: under skin, around kidneys and eye-balls, within abdomen and breasts.
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        |  | 
        
        | Term 
 | Definition 
 
        | Reticular, Loose Connective Tissue 
 Description: network of reticular fibers in a typical loose ground network
 
 Function: fibers form a soft internal skeleton that supports other cell types, including white blood cells
 
 Location: lymphoid organs
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        |  | 
        
        | Term 
 | Definition 
 
        | Reticular, Loose Connective Tissue 
 Description: network of reticular fibers in a typical loose ground network
 
 Function: fibers form a soft internal skeleton that supports other cell types, including white blood cells
 
 Location: lymphoid organs
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        |  | 
        
        | Term 
 | Definition 
 
        | Dense Connective Tissue, Regular 
 Description: primarily parallel collagen fibers, a few elastic fibers, major cell type is fibroblast
 
 Function: attaches muscles to bones or to muscles, attaches bones to bones
 
 Location: tendons, most ligaments
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Dense Connective Tissue, Regular 
 Description: primarily parallel collagen fibers, a few elastic fibers, major cell type is fibroblast
 
 Function: attaches muscles to bones or to muscles, attaches bones to bones
 
 Location: tendons, most ligaments
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Dense Connective Tissue, Regular 
 Description: primarily parallel collagen fibers, a few elastic fibers, major cell type is fibroblast
 
 Function: attaches muscles to bones or to muscles, attaches bones to bones
 
 Location: tendons, most ligaments
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        |  | 
        
        | Term 
 | Definition 
 
        | Dense Connective Tissue, Irregular 
 Description: primarily irregularly arranged collagen fibers, some elastic fibers, major cell is fibroblast
 
 Function: able to withstand tension exerted in many directions
 
 Location: fibrous capsules of organs and of joints; dermis of skin, submuscosa of digestive tract
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        |  | 
        
        | Term 
 | Definition 
 
        | Dense Connective Tissue, Irregular 
 Description: primarily irregularly arranged collagen fibers, some elastic fibers, major cell is fibroblast
 
 Function: able to withstand tension exerted in many directions
 
 Location: fibrous capsules of organs and of joints; dermis of skin, submuscosa of digestive tract
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        |  | 
        
        | Term 
 | Definition 
 
        | Dense Connective Tissue, elastic 
 Description: dense regular connective tissue containing a high proportion of elastic fibers
 
 Function: allows recoil of tissue following stretching
 
 Location: walls of large arteries
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        |  | 
        
        | Term 
 | Definition 
 
        | Dense Connective Tissue, elastic 
 Description: dense regular connective tissue containing a high proportion of elastic fibers
 
 Function: allows recoil of tissue following stretching
 
 Location: walls of large arteries
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        |  | 
        
        | Term 
 | Definition 
 
        | Hyaline Cartilage 
 Description: amorphous but firm matrix, collagen fibers form an imperceptilbe network; chondoblasts produce the matrix and when mature lie in lacunae
 
 Function: supports and reinforces, resilient cushioning properties
 
 Location: cartilages of the nose, trachea, and larynx
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        |  | 
        
        | Term 
 | Definition 
 
        | Hyaline Cartilage 
 Description: amorphous but firm matrix, collagen fibers form an imperceptilbe network; chondoblasts produce the matrix and when mature lie in lacunae
 
 Function: supports and reinforces, resilient cushioning properties
 
 Location: cartilages of the nose, trachea, and larynx
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        |  | 
        
        | Term 
 | Definition 
 
        | Elastic Cartilage 
 Description: similar to hyaline cartilage, but more elastic fibers in matrix
 
 Function: maintains shape of structure while allowing great flexibility
 
 Location: supports the external ear; epiglotis
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        |  | 
        
        | Term 
 | Definition 
 
        | Elastic Cartilage 
 Description: similar to hyaline cartilage, but more elastic fibers in matrix
 
 Function: maintains shape of structure while allowing great flexibility
 
 Location: supports the external ear; epiglotis
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Fibrocartilage 
 Description: matrix similar to but less firm than that in hyaline cartilage; thick colllagen fibers predominate
 
 Function: tensile strength with the ability to absorb compressive shock
 
 Location: intevertebral discs
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        |  | 
        
        | Term 
 | Definition 
 
        | Fibrocartilage 
 Description: matrix similar to but less firm than that in hyaline cartilage; thick colllagen fibers predominate
 
 Function: tensile strength with the ability to absorb compressive shock
 
 Location: intevertebral discs
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        |  | 
        
        | Term 
 | Definition 
 
        | Bone Tissue 
 Description: hard, calcified matrix containing many collagen fibers
 
 Function: bone supports and protects, provides levers for muscles to act on
 
 Location: bones
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Blood 
 Description: red and white blood cells in fluid matrix
 
 Function: transport of respiratory gases, nutrients, waste, and other substances
 
 Location: contained within blood vessels
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        |  | 
        
        | Term 
 | Definition 
 
        | Nervous Tissue 
 Description: neurons are branching cells; cell processes may be long and extended from nucleus containing cell body, also contains non-irritable supporting cells
 
 Function: transmit electrical signals from sensory receptors and to effectors which control their activity
 
 Location: brain, spinal cord, and nerves
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        |  | 
        
        | Term 
 | Definition 
 
        | Skeletal Muscle 
 Description: long, cylindrical, multinucleate cells, obvious striations
 
 Function: voluntary movement, locomotion manipulation, facial expression
 
 Location: in skeletal muscles attached to bones or occasionally to skin
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        |  | 
        
        | Term 
 | Definition 
 
        | Skeletal Muscle 
 Description: long, cylindrical, multinucleate cells, obvious striations
 
 Function: voluntary movement, locomotion manipulation, facial expression
 
 Location: in skeletal muscles attached to bones or occasionally to skin
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        |  | 
        
        | Term 
 | Definition 
 
        | Smooth Muscle 
 Description: spindle-shaped cells with central nuclei, no striations, cells arranged closely to form sheets
 
 Function: propels substances or objects along internal passageways, involuntary control
 
 Location: mostly in the walls of hollow organs
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Smooth Muscle 
 Description: spindle-shaped cells with central nuclei, no striations, cells arranged closely to form sheets
 
 Function: propels substances or objects along internal passageways, involuntary control
 
 Location: mostly in the walls of hollow organs
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Cardiac Muscle 
 Description: branching, striated, generally uninucleate cells that interdigitate at specialized junctions
 
 Functions: as it contracts it propels blood into the circulation, involuntary
 
 Location: walls of the heart
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        |  | 
        
        | Term 
 | Definition 
 
        | Cardiac Muscle 
 Description: branching, striated, generally uninucleate cells that interdigitate at specialized junctions
 
 Functions: as it contracts it propels blood into the circulation, involuntary
 
 Location: walls of the heart
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