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21 Cards in this Set
- Front
- Back
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Describe Skeletal muscle;
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Controlled voluntarily, Attached to connective tissue, Striated, >1 Nucleus.
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Describe Cardiac muscle;
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Only in the heart, Involuntarily pump blood, Striated, One nucleus, Intercalieted.
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Describe Smooth Muscle;
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Involuntary, Surrounds hollow organs, Attached to other muscle cells, No visible striations, One nucleus.
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Describe Nervous Tissue;
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Neurons & nerve support cells, Function; send impulses to other areas of the body (Irritability, Conductivity)
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What is Regeneration?
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Replacement of destroyed tissue by the same kind of cells.
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What is Scar Tissue?
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Repair by dense fibrous connective tissue.
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What happens to the capillaries during tissue repair?
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They become very permeable, clotting proteins are introduced, a fibrin mesh walls off the injured area.
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What tissue makes up most of the body weight?
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Muscle Tissue
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What causes bones to move?
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Contraction of muscle tissue.
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What are the contractile elements of muscle fibers?
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Myofibrils
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What accounts for the striation of skeletal muscle?
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Myofilaments (actin & myosin)
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Name the muscles of the neck?
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Sternocleidomastoid & Trapezius
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Name the muscle of the shoulder?
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Pectoral girdle
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Name the muscles of the arm?
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Biceps & triceps
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Name the muscle of the thigh?
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Illiopsoas & Gluteus maxima
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Name the muscle of the lower leg?
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Quadriceps femoris group & hamstring group
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Name the muscle of the ankle & foot?
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Gastrecnemius (plantar flexion), Tibialis anterior (orsiflexion of the foot), Flexor & Extensor digitorum (moves toes & feet)
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What is a isotonic Contraction?
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Shortening
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What is a isometric contraction?
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Lengthening
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What ion & cellular component is responsible for muscle contraction?
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Ca+ & ATP
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What is a sarcomere?
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Unit of contraction of the myofibrils of a muscle cell, made of protein filaments arranged between two Z disks.
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