Term
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Definition
Epithelial
Connective
Muscle
Nervous |
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Term
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Definition
| groups of cells similar in structure and function |
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Term
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Definition
Forms boundaries between different environments, protects, secretes, absorbs, filters
(ex: skin surface, lining of GI tract/hollow organs) |
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Term
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Definition
Supports, protects, binds other tissues together
(ex: bones, tendons, fat and padding)
*originate from mezenchyme & have matrix |
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Term
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Definition
| elongated cells specialized to contract to cause movement, structure, function |
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Term
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Definition
internal communication
(ex: brain, spinal cord, nerves) |
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Term
| Types of epithelial tissue |
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Definition
1. covering and lining - on external & internal surfaces
2. glandular - secretory tissues in glands |
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Term
| Epithelial tissue functions |
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Definition
1. provide physical protection
2. control permeability
3. provide sensation
4. produce specialized secretions (glandular) |
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Term
| Characteristics of Epithelial |
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Definition
1. cells have polarity - apical (upper, free) and basal (lower, attached) surfaces
2. made of closely packed cells = sheets held together by tight junctions and desmosomes
3. supported by connective tissue reticular lamina
4. avascular but innervated
5. high regeneration rate |
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Term
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Definition
| ductless glands that secrete hormones via exocytosis that travel through interstitial fluid, lymph, or blood to target organs |
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Term
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Definition
*more numerous than exocrine glands
secrete products into ducts & secretions are released in body cavities or on body surfaces
(i.e. salivary, mucous, sweat, oil glands) |
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Term
| 3 distinctions of connective tissue |
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Definition
1. origin cell is mesenchymal
2. varying degrees of vacularity
3. extracellular matrix |
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Term
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Definition
1. cutaneous
2. mucous
3. serous
4. synovial |
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Term
| Functions of Connective tissue |
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Definition
Binding and support
Protection
Insulation
Transportation (blood) |
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Term
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Definition
| Medium through which solutes diffuse between blood capillaries and cells |
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Term
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Definition
Strongest and most abundant type
Provides high tensile strength |
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Term
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Definition
| Networks of long, thin, elastin fibers that allow for stretch |
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Term
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Definition
| Short, fine, highly branched collagenous fibers |
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Term
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Definition
| most abundant tissue type |
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Term
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Definition
loose and dense varieties
*well vascularized |
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Term
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Definition
| avascular; hyline, fibrocartilage, elastic |
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Term
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Definition
hard, collagen matrix
calcium salts
(skeleton) |
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Term
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Definition
blood cells in plasma matrix
transports nutrients, wastes, etc |
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Term
| Areolar *loose connective |
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Definition
| gel like matrix with cells, fibroblasts; cushions organs & plays role in inflammation |
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Term
| Adipose *loose connective |
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Definition
| fat gel matrix; nucleus pushed to side by large fat drop - provides stored fuel, insulates, supports/protects (fat cells) |
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Term
| Reticular tissue *loose connective |
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Definition
finely woven reticular fibers
soft ground substance
(bone marrow, stroma) |
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Term
| Dense regular *dense connective |
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Definition
dense parallel bundles of collagen
few cells
little ground substance
high tensile strength (tendons, ligaments) poorly vascular |
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Term
| Dense irregular *dense connective |
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Definition
fibers arranged in different planes
-resist multidirectional tension
(dermis) |
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Term
| Elastic *dense connective |
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Definition
elastic fibers
flexible support (ear, epiglottis) |
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Term
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Definition
hyaline
elastic
fibrocartilage |
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Term
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Definition
skin - covers the body surface
*areolar and epithelial tissue |
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Term
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Definition
line body cavities open to the exterior (e.g., digestive and respiratory tracts)
*areolar and epithelial tissue |
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Term
Serous membrane
Parietal vs visceral |
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Definition
serous membranes line body cavities
 closed to the exterior.
Parietal serosa = lines internal body walls
visceral serosa = covers internal organs
*mesothelium and areolar tissue |
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Term
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Definition
line moving, articulating joint cavities
produce synovial fluid
protect ends of bones |
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Term
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Definition
1. inflammation
-release of inflammatory chemicals
-dilation of blood vessels
-increase in vessel permeability
-clotting occurs
2. organization and restored blood supply
-The blood clot is replaced with granulation tissue
-epithelium begins to regenerate
-fibroblasts produce collagen fibers to bridge the gap
-debris is phagocytized
3. regeneration and fibrosis
-the scab detaches
-fibrous tissue matures; epithelium thickens and begins to resemble adjacent tissue
-results in a fully regenerated epithelium with underlying scar tissue |
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Term
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Definition
attached to and move bony skeleton
*cells cylindrical & striated |
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Term
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Definition
forms walls of heart; pumps blood
*cells branched and striated |
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Term
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Definition
walls of hollow organs; propels substances
*cells spindle shape - no striations |
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Term
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Definition
firm ground substance
collagen fibers
resists compression
(bone surface, trachea) |
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Term
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Definition
parallel collagen fibers
support &_compressible
(intervertebral disks,knees) |
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Term
| Types of Connective Tissue |
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Definition
1. Connective tissue proper
2 Cartilage
3. Bone
4. Blood |
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Term
| Functions of Connective Tissue |
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Definition
Binding
Support
Transport (Blood)
Insulation
Fat Storage
Protection |
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