Anatomy Vocab Ch 6 Marieb
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | skeletal, smooth, cardiac
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| muscles | show 🗑
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| show | skeletal and smooth muscle cells, shape of the cell has led to the name muscle fibers
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| muscle fibers | show 🗑
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| myofilaments | show 🗑
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| sarcoplasm | show 🗑
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| show | = muscle
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| skeletal muscle fibers | show 🗑
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| show | fibers have obvious stripes; skeletal muscle
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| show | the only muscle type subject to concious control
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| skeletal muscle tissue | show 🗑
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| show | connective tissue sheath enclosing the muscle fiber
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| show | coarse fibrous membrane wrapping sheathed muscle fibers
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| show | bundle of fibers
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| show | overcoat of connective tissue binding fascicles bundles
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| tendons | show 🗑
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| show | sheetlike fibers that attach muscles indirectly to bones, cartilage or connective tissue coverings
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| show | no striations, involuntary, cannot consciously control it; found in hollow visceral organs ie stomach, urinary bladder, etc; visceral, nonstriated, involuntary
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| smooth muscle cell | show 🗑
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| cardiac muscle | show 🗑
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| intercalated discs | show 🗑
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| skeletal muscle | show 🗑
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| show | used to power muscle contraction, releasing heat in the muscle; the only energy source to power muscle activity; renewable
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| show | the muscle husk; the plasma membrane
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| show | long ribbonlike organelles which nearly fill the cytoplasm
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| show | light (I) and dark (A) bands give the muscle cell as a whole its striped appearance
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| sarcomeres | show 🗑
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| show | threadlike, what causes the banding pattern in the sarcomeres; two types, do not shorten during contraction, slide past each other
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| show | Z is the darker area, H is a lighter central area, H contains tiny protein rods that hold the thick filaments together
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| thick filaments | show 🗑
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| myosin | show 🗑
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| show | myosin heads; link the thick and thin filaments together during contraction
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| show | composed of contractile protein actin and regulatory proteins; AKA actin filaments, overlap thick filaments
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| actin filaments | show 🗑
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| show | the lighter color zones of the thick and thin filaments
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| show | precise arrangement of myofilaments in the myofibrils, producing the banding pattern in the muscle cells
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| sarcoplasmic reticulum (SR) | show 🗑
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| show | excitability (responsiveness, irritability), contractility, extensibility, elasticity
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| show | one neuron and all skeletal muscle cells
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| show | long threadlike extension of the neuron; forming junctions with the sarcolemma of a different muscle cell
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| show | the joining of nerve and muscle cells
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| show | the gap between nerve endings and muscle cell membranes, filled with interstitial fluid
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| neurotransmitter | show 🗑
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| acetylcholine (ACh) | show 🗑
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| action potential | show 🗑
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| show | skeletal muscle cell contracts to its fullest extent, never partially contracts
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| graded responses | show 🗑
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| show | single, brief, jerky contractions (not normal)
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| tetanic contraction (fused)(complete tetanus) | show 🗑
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| show | state of the muscle before tetanic contraction
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| show | creation of creatine phosphate (CP), aerobic respiration, anaerobic glycolysis and lactic acid formation
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| creatine phosphate (CP) | show 🗑
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| aerobic respiration | show 🗑
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| show | the pathways providing aerobic respiration
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| show | the initial step of glucose breakdown, does not require oxygen; glucose is broken down to pyruvic acid and captured in ATP bonds
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| lactic acid | show 🗑
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| show | only 5% of ATP for muscle strength, 2 1/2 times faster; the end result of production of glycolysis and lactic acid
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| muscle fatigue | show 🗑
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| oxygen deficit | show 🗑
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| tension | show 🗑
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| show | myofilaments are successful in sliding movement, muscle shortens, movement occurs
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| isometric contractions | show 🗑
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| show | the state of continuous partial contraction
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| flaccid | show 🗑
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| show | wasting away
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| show | less fatigue, caused when increased blood supply to the muscles, more oxygen is stored and more mitochondria cells are formed
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| show | flexion, extension, rotation, abduction, adduction, circumduction
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| show | attachment of muscle to the immovable or less movable bone
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| show | attachment of muscle to the movable bone
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| show | movement that decreases the angle of the joint and brings two bones closer toegther
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| extension | show 🗑
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| show | movement of a bone around its axis
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| abduction | show 🗑
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| show | movement of a limb toward midline
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| circumduction | show 🗑
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| dorsiflexion | show 🗑
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| show | pointing the foot down so that top surface is farther away from the shin
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| show | turning the sole of the foot to the midline
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| show | turning the sole of the foot away from midline
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| supination (supine) | show 🗑
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| show | lying on the front, back upward
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| opposition | show 🗑
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| prime mover | show 🗑
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| show | muscles that oppose a movement
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| show | help movement by removing opposing movement; balance the movement
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| show | hold something so that movement can be done with no opposition
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| rectus | show 🗑
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| oblique | show 🗑
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| maximus | show 🗑
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| minimus | show 🗑
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| show | long
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| show | two origins
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| triceps | show 🗑
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| show | four origins
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| show | has clavicle attachment site
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| sterno | show 🗑
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| deltoid | show 🗑
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| extensor | show 🗑
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| adductor | show 🗑
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| show | action of bringing toward or together
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| show | sqeezing muscles
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| circular muscle | show 🗑
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| convergent muscle | show 🗑
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| parallel | show 🗑
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| fusiform | show 🗑
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| show | short fascicles attach at a slant to a central tendon
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| unipennate | show 🗑
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| show | fascicles insert into opposite sides of the tendon
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| mutipennate | show 🗑
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| show | congenital muscular problem; inherited muscle-destroying disease that affects specific uscle groups; muscles degenerate and atrophy
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| show | almost exclusively in boys; disease progresses from extremities upward, affecting head and chest muscles; most die young and of respiratory failure; muscles lack dystrophin
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| show | affects muscles during adulthood; difficulty in swallowing and talking, general muscle weakness and fatigue; shortage of acetylcholine receptors; death due to respiratory failure
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