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148 Cards in this Set
- Front
- Back
Epithelial cells are made from
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all germ layers
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Epithelial cells are held together by
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tight junctions
(limit passage) |
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Simple Squamous Function
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diffusion, osmosis, filtration and secretion.
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Simple Squamous locations (5)
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1. around heart
2. kidney tubules 3. air sacs of lungs 4. Lining of blood vessels 5. Cheek |
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Simple Squamous is NOT found in areas that are....
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subject to wear and tear
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Endothelium function
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lines heart, blood vessels and lymphatic vessels.
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Mesothelium function
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forms pericardium, forms pleura
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Simple Cuboidal function
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secretion & absorption
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Simple cuboidal location
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1. Kidneys
2. Glands (sweat, saliva) |
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Simple Columnar function
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movement by cillilary action
aids in digestion |
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Simple Columnar Location
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Lines small intestine (digestion)
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Simple columnar contains....
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Goblet cells & microvilli
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Pseudostratified Columnar Function
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Secretion and Movement by cilliary action.
(cilliated) absorbtion and protection (non cilliated) |
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Psuedostratified Columnar Location
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Trachea
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Stratified Squamous function
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Protection
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Stratified Squamous location
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Keratinized -- skin
Nonkeratinized -- lining of mouth and esophagus. |
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Serous membranes
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Do NOT open directly to the outside
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Example of a serous membrane
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around heart, or lungs (2 layers)
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Mucus membrane
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Lines space that DOES open to outside
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Example of a mucus membrane
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Esophagus (contains goblet cells)
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Steps to repair tissue (3)
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1. regeneration (tissue repair)
2. Fibrosis (scar tissue) 3. Granulation ( connective tissue acts as a frame) |
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Types of muscle tissue (3)
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1. Skeletal muscle
2. Cardiac muscle 3. Smooth muscle |
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Which type of muscle tissue contains intercollated disks?
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Cardiac muscle
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Smooth muscle function
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non striated
lines blood vessels, airway to lungs, gallbladder and intestines. |
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Types of Connective tissue (4)
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1. Areolar
2. Adipose 3. Hylaine cart. 4. Compact bone |
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Areolar CT function (3)
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strength, elasticity and support
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Areolar CT location
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ONLY in subq layer
around organs |
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Areolar CT ground substance
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many cells
collagen and elastic fibers |
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Adipose tissue function (4)
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reduces heat loss, energy source, supports, protects
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Hylaine Cart. function (3)
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provides smooth surface, flexability, support
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Hylaine cart. location
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ends of bones
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Hylaine cart. Blood supply?
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NONE
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Compact bone function (3)
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support, protection, lever
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Fibroblasts
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make fibers (most numerous)
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Adipocytes
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fat drops (around heart and kidneys)
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Mast cells
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RXNS
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White blood cells
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infection
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Macrophages
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engulf bacteria
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Plasma
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Immune response
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Chondrotin
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matrix of cart.
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Reticular Fibers
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delicate (fine bundles)
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Collagen Fibers
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Tough (bundles --> tendons)
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Elastic Fibers
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Can stretch and retract
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Erythro
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RED (o2 transport)
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Leuko
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White blood cells
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Thrombo
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Platelets (clotting)
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Exocrine Glands
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secrete into duct
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subtypes of exocrine glands (2)
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1. merocrine
2. holocrine |
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How do merocrine glads secrete substance?
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exocytosis
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How do holocine glands secrete substance?
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Rupture
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Example of a holocrine gland
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sebacous gland.
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ENDOcrine glands diffuse
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directly into blood stream
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haversian canal
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tube for nutrient blood supply;
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Skeletal System Functions (6)
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1. Support
2. Protection 3. Assistance in movement 4. Storage and release of minerals (ca+) 5. Blood cell production 6. Triglyceride storage |
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The episeal plate is at which part of the long bone?
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metaphyses
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The endostinum is the
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inner portion of the bone
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The periostinum
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outer portion of the bone
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Calcification
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tissue hardening
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Hydroxiapatite
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calcium phosphate + calcium hydroxide
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Steps of the devlopment of bone (4)
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1. osteogenic cells from mesenchyme
2. osteoblasts (synthasize and create collagen fibers) 3. Osteocytes (exchange of nutrients and waste in blood) 4. Osteoclasts |
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Bone tissue characteristics (4)
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1. few spaces
2. collagen fibers 3. hydroxiapatite 4. heels well! |
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Cart. tissue characteristics (2)
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1. Matrix of chondrotin
2. doesnt heel well. |
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Fibrocart. characteristics (2)
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1. Strongest
2. Found in menisci (knee) |
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Elastic cart. (2)
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1. Flexible
2. Found in outer ear. |
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Functions of bone (4)
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1. Support
2. Movement 3. Calcium storage 4. Hemopoeisis (RBC maker) |
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Blood Ca+ is regulated by
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Parathyroid hormone
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Function of calcitonin
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Inhibits production of osteoclasts and speeds up reuptake.
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Spongy bone is always covered by
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COMPACT BONE
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Intermembranosus ossification (4)
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1. ossification center forms from osteogenic cells
2. calcification (matrix of bones harden) 3. Formation of trabecular (bones fuse together) 4. Devlopment of periostinum. |
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Endrochondral Ossification (6)
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1. Devlopment of cart. model (in future bone shape)
2. Growth 3. Devlopment of primary ossification center (osteoblasts are now made) 4. Devlopment of medullary cavity. 5. Devlopment of 2nd ossification center 6. Formation of articular cart. |
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Interstitial growth
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from within
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appositional growth
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from outer surface
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Resting Cart.
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Anchor epipsieal plate to epiphysis of bone
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Peripherlating cart.
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divide and undergo interstitial growth (from within) secrete extracellular matrix
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Hypertrophic cart,
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Large maturing chodrocytes
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Calcified cart.
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Death of chondrocytes b/c martix is to hard.
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Repair of a fracture (4)
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1. hemotoma
2. collagen fibers make callus 3. osteogenic cells make osteoblasts, (bony callus) 4. Bone remodeling. |
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Skin Functions (5)
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1. protect
2. insulate 3. support 4. vit D absorption 5. sense organ |
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Layers of the skin
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1. EPIdermis
2. DERMIS 3. Hypodermis (subq) |
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Epidermis contains
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1. NO blood vessels
2. Keratinocytes (dead) |
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Dermis contains
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1. collagen &elastic fibers
2. dense irregular CT |
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Keratincytes
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waterproof 90%
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Melonocytes
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pigment 8%
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Langer Horn cells
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Bacteria
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Merkle cells
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Sensory nerve cells ( least numerous)
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Appocrine Glands
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open to hair follicles
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Eccrine Glands
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Heat regulation
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Sebaceous Glands
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Oil secretion into the hair shaft
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Papillary blood vessels uses (3)
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1. temp regulation
2. constriction 3. dilation |
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Vitamin D sythesis
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Cholestrol --> kindeys & liver synthasize to calcitrol.
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Nail plate is made of
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hard, dead, keratinized epidermal cells
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nail plate
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useiable part (typing)
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free edge
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extends past finger
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nair root
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burried under skin
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Lunala
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White half moon
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Nail matrix
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where cells divide to produce growth
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sense organs (2)
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Touch (nerve endings in epidermis)
Temp (blood flow, sweat) |
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Wound healing (5)
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1. inflamatory phase (blood clot and elimination of bacteria)
2. Migratory phase (clot forms scab) 3. Granulation tissue (tissue filling wound) 4. Proliferation phase (epithelial cell growth and deposits collagen fibers) 5. maturation phase (scab falls off) |
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Muscle types (3)
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1. Skeletal muscle
2. Cardiac muscle 3. Smooth muscle |
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Skeletal muscle characteristics
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1. striated
2. volantary |
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Cardiac muscle characteristics
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1. intercolated disks
2. involantary |
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Smooth muscle characteristics
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1. non striated
2. located in hollow tubes and structures. 3. involantary |
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Functions of muscles (4)
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1. production of body movements
2. stabolizing body positions 3. storing and moving 4. Generating heat |
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Flexors
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decrese a joint angle
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extensors
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increase joint angle
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adductors
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move bone closer to midline
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abductors
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move bone further from midline
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rotators
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rotates bone alone longitudinal axis
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Prime mover (Agonist)
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contracts to move a muscle
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Antagonist
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stretches and allows prime mover to work
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synergist
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contract and stabolize intermediate joints
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stabolizer/ fixators
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stabolizes origin of prime mover.
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Lever
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ridid structure that moves around a fixed point
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Fulcrum
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Fixed point
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mechanical advantage
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small effort is required
load is close to fulcrum |
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mechanical disadvantage
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more effort to move load
effort close to fulcrum |
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Elasticity
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ability to return to original length
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Contractility
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contract forcefully when stimulted by an action potential
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Endomysium
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seperates each muscle fiber
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Perimyosium
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surrounds groups of 10 to 100 muscle fibers, seperates them into bundles
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Epimyosium
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outermost layer, encircles entire muscle
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Muscle metobolism (3 ways)
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1. creatine phosphate 1 ATP
2. Glycolosis (anarobic resp.) 2 ATP 3. aerobic resp 36 ATP |
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Slow muscle fibers
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a lot of myoglobin 100-200 msec (contraction
fatigue slowly are red |
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Fast muscle fibers
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most powerful contractions
fatigue quickly are white |
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Isotonic
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tension remains the same length changes
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Concentric
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muscle shortens
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Eccentric
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muscle lengthens
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Isometric
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length same tension changes
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Hypertrophy
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enlargement of EXSISTING muscle fibers
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Hyperplasia
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INCREASE IN NUMBER of muscle fibers
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Suture characteristics (4)
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1. composed of dense irregular CT
2. immovable 3. connected by CT 4. Interdigitate |
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Syndesmoses example
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roots of teeth
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Synarthrosis
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immovable
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Amphiarothrosis
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slightly moveable
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Diarthrosis
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freely moveable
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Characteristics of a cartliginous joint (1)
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1. lack synovial cavity
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Synchondroses (2)
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1. connects
2. immovable |
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Symphyses
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1. slightly moveable
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Function of bursae
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decrese friction between joints
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synovial joint
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covered with hylaine cart.
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synovial membrane
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areolar CT with elastic fibers
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Synovial Fluid
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produced by synovial membrane
lubracation shock absorber phagocytosis |
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tendon sheaths
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wrap around tendons that expierence a lot of friction
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Ligament
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Bone to Bone
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Tendon
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Muscle to Bone
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Origin
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attachment of muscle to stationary bone
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Insertion
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attachment of muscle or tendon to movable bone
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