Tuesday 7-21-9
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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| 4 main functions of the muscular system | External Mobility-Internal mobility-Heat production-Posture Maintence
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| which muscle type contains striations? (2)Skeletal,Smooth or Cardiac? | Skeletal & Cardiac
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| Which muscle type has one centrally located nucleus? (2) Skeletal, Smooth or Cardica? | Smooth & Cardiac
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| Which muscle type has small or elongated fibers | Sketetal
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| Which muscle type is involuntary (2) | Smooth and Cardiac
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| Which muscle type fatigues rapidly | Skeletal
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| Which muscle type is located in the heart | cardiac
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| Which muscle type must be stimulated be a nerve impulse | skeletal
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| Which muscle type forms the walls of hollow organs | smooth
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| Many muscle fibers are grouped into bundles of tissue known as.. | Perimysium
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| when tendons corss multiple joints they are wrapped in ... | Tendon Sheaths
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| Sarcomeres are composed of bundles of protein threads called... | Myofilament
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| Basic muscle cell | Muscle Fiber
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| Basic contractile unit of a muscle cell | Fasciculi
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| A broad flat tendon | Aponeurosis
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| the cytoplasm of the cell | Sarcoplasm
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| bundles of fasciculi are again bound by another fascial layer | Sarcomere
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| the cell membrane-encases sarcoplasm adn organells | Sarcolemma
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| a structure made of deep fascia that anchors muscle to bone | tendon
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| what is the special molecule that stores energy? | ATP
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| what respiration requires oxygen in order to form APT and maintain enegery levels | Aerobic respiration
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| what respiration in the presence of oxygen, breaks down glucose and releases apt to produce lactic acid | Anaerobic respiration
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| what acid is formed as the end product of anaerobic glycolysis | Lactic acide
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| what is fatigue resistant | Slow Twitch
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| the price of a more rapid contraction is a quick depletion of apt and fibers that fatique quickly | fast twitch
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| referred to as pink muscle | intermediate
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| classified in between the 2 extremes of slow and fast twitch fiber | intermediate
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| many world class sprinters have a high ratio of these fibers in their leg muscles | intermediate
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| a high ratio of these fibers would be present in the legs of world class long distance runners | slow twitch
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| known as white muscle | fast twitch
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| known as red muscle | slow twitch
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| the muscle changed in tension but not in length | isometric contraction
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| the tone or tension within a muscle ramins the same as the length of the muscle changeds | isotonic contraction
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| the most common type of muscle contraction | isotonic contraction
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| a type of isotonic contraction that occurs as the muscle SHORTENS | Concentric Contraction
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| a type of isotonic contraction that occurs as the muscle LENGTHENS | Eccentric Contraction
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| Proprioceptors are ____ located in the muscles, tendons and joints | Sensory Receptors
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| the ____ are proprioceptors that are located within the muscle belly & serve as a protective mechanism 2 safeguard the muscle from over-strectching caused by musclular contraction | Muscle Spindles
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| these proprioceptor is located in the musculo-tendinous junction and detects tension applied 2 the tendon during slow static stretch | Golgi tendon Organs
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| myofibrils are made up of what? | Myofilaments
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| retainng bands for tendons | Retinacula
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| wraps around fibers/cells | endomysium
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| covers fasciculi | perimyslium
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| wraps around entire muscle | epimysium
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| wraps around muscle groups | deep fascia
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| fluid filled system of cavities that contain calcium | Sarcoplasmic reticulum
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| unit of measure | Sacromeres
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| power plant | mitochondria
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| channels with in sacrolemma;helps spread nerve impluse | t tubes
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| muscle nerve | motor neuron
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| single motor neuron plus all muscle fibers | motor unit
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| btw motor neuron and motor end plate | neuromuscler junction
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| motor neurons connect 2 folded sections of sarcolemma | motor end plate
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| narrow gap or cleft across which neurotransmitters or chemical messages diffuse | synapse
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| prime mover | Agonist
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| opposite of Agnoist | Antagonist
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| contract same tiem as prime mover to help assist | Synergist
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| Stabilizers | fixators
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| skeletal muscle contraction in which there is an increase in tension by a contraction adn the muscle length does not change | Isometric
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| when the central nervous system sends a message for the agonistic to contract, the tension in the antagonist is inhibited by impluses from motor neurons | Reciprocal Inhibition
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| what is a contractile unit | sarcomere
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| how can you measure a contractile unit (sarcomere) | looking at the Z line
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| muscle condition involves spasms of the sternocleidomastoid muscles that could cause vertigo | Torticollis
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| what condition is caused by collection of genetic dieseases characterized by the progressive atrophy of skeletal muscles w/out any indication of neural degeneration | Muscle Dystrophy
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| what condition describes a decrease in the size of the muscle fibers or wasting away | Atrophy
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| an injury of a muscle or tendon caused by violent contraction. | strain
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