Term Definition
Strain An injury to either a muscle or a tendon.
Sprain Stretching or tearing is an injury to a ligament.
Atrophy Loss of muscle mass and strength due to a disuse of muscles over time.
Primer Mover The muscle that produces movement in muscle contraction.
Contracture A condition in which shortened muscles around joints cause abnormal and sometimes painful positioning of the joints.
Smooth Muscle Involuntary muscle composed of elongated. spindle-shaped cells.
Tendon Band of connective tissue that attaches muscle to bones.
Ligament Tough fibrous connective tissue that connects bones or connects cartilage to a joint.
Fascia Fibrous sheath that holds together the connective tissue and muscle fibers that makes up muscles.
Ganglion Cyst Benign sac-like swelling that typically develops over a joint or tendon.
Straited Having a stripped appearance.
Fibromyalgia Widespread disorder affecting an estimated 3 million individuals in the US.
Tetanus Often fatal, infectious disease caused by the bacterium Clostridium tetani, usually enters the body through a puncture, cut or open wound.
Insertion In locations where skeletal muscles attach, the attachment point on the bone that moves.
Synergist Muscle that acts with another muscle to produce movement.
Muscular Dystrophy One of a group of genetic diseases characterized by progressive weakness and degeneration of the skeletal or voluntary muscles that control movement.
Lyme Disease Caused by the bacterium Borrelia Burgdorferi, which is transmitted through the bite of an infected tick and results in the tell tale round bull's-eye rash.
Tendonitis Inflammation and irritation of the tendon, caused by microscopic tearing.
Mysathenia Gravis Is a chronic autoimmune neuromuscular disease characterized by varying degrees of weakness of the skeletal or voluntary muscles in the body.
Tonicity Is the body's ability to maintain posture through a continual partial contraction of skeletal muscles.
Agonist/Prime Mover1 A muscle that is the primary actor in a given movement
Origin Is a muscle's attachment point to a bone that is primarily fixed or still.
Antagonist Muscle that counters, or opposes the action of another.
Aspiration Removal by suction of fluid from cyst.
Oxygen Debt Inability of the body to absorb enough oxygen to supply energy.
Orthoses Orthopedic appliance used for support.
Skeletal Muscle Also called voluntary and can perform movement because bone is attached to the muscle.
Cardiac Muscle Found in the heart with a single central nucleus and are roughly quadrangular in shape.
Muscular System Chapter 24 Vocabulary

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