Anatomy Chapter 5
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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Agonist | role played by a skeletal muscle to cause a movement
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Antagonist | role played by a skeletal muscle acting to slow or stop a movement
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Aponeurosis | a flat, sheetlike fibrous tissue the connects muscle or bone to other tissues
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Concentric | type of contraction that results in shortening of a muscle
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Ecccentric | contraction accompanies by lengthening of a muscle
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Endomysium | fine, protective sheath of connective tissue that surrounds a skeletal muscle
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Epimysium | outermost sheath of connective tissue that surrounds a skeletal muscle
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Fascile | bundle of muscle fibers
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Isometric | a type of contraction that involves no change in muscle length
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Muscular fiber | an individual skeletal muscle cell
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Perimysium | a connective tissue sheath that envelops each primary bundle of muscle fibers
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Peristalsis | wave of symmetrical squeezing of the digestive tract walls that occurs during digestion
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Acetylecholine | neurotransmitter chemical that stimulates muscle
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Neuromuscular junction | link between an axon terminal and muscle fiber
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Synaptic Cleft | tiny gap that separates the axon terminal and muscle fiber
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Fast-twitch | Type of muscle that contracts quickly
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Motor neuron | nerve that stimulates skeletal muscle tissue
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Slow-twitch | type of muscle that contracts slowly and is fatigue resistant
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Abduction | movement of a body segment away form the body in the frontal plane
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Adduction | movement of a body segment closer to the body in the frontal plane
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Circumduction | rotational movement of a body segment such that the end of the segment traces a circle
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Dorsiflexion | movement of the top of the foot toward the lower leg
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Eversion | movement in which the sole of the foot is rolled outward
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Flexion | forward movement of a body segment away from anatomical position in the sagittal plane
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Hyperextension | backward movement of a body segment past anatomical position in the sagittal plane
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Inversion | movement in which the sole of the foot is rolled inward
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Lateral rotation | outward (lateral) movement of a body segment in the transverse plane
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Medial rotation | inward (medial) movement of a body segment in the transverse plane
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Opposition | touching any of you four fingers to your thumb; this movement enables grasping of objects
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Plantar flexion | downward motion of the foot away from the lower leg
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Pronation | medial rotation of the forearm (palm down)
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Radial deviation | rotation of the hand toward the thumb
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Supination | lateral rotation of the forearm (palm up)
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Ulnar deviation | rotation of the hand toward the little finger
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Tendinitis | inflammation of a tendon, usually accompanied by pain and swelling
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Muscle strain | injury that occurs when a muscle is stretched beyond the limits to which it is accustomed
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Contusion | bruises or bleeding within a muscle that results from an impact
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Muscular dystrophy | group of similar inherited disorders characterized by progressively worsening muscle weakness and loss of muscle tissue.
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Shin splints | name for pain localized to the anterior lower leg
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Hernia | a balloon-like section of the lining of the abdominal cavity
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