Sheath around the muscle of connective tissue
Neurotransmitter released at the synapse. Interacts with cell membranes to cause contraction.
Chemicals that cause contraction.
Actin and myosin
State of firmness
Muscle that produces movement
Main muscle if a group of muscles is used to cause movement.
Muscle that relaxes during movement.
Muscle that assists a prime mover
The point where the muscle is attached to the stable part of the body
Point where the muscle is attached to the moving part
Closing the angle at a joint
Opening an angle at a joint
Moving away from the midline of the body
Moving towards the midline of the body
Turning a part of the body on its own axis
Circular movement from a central point
Bending the sole of the foot
Kin/o, kine, kinesi/o, kinet/o
Group of hereditary diseases involving progressive, noninflammatory, muscle degeneration.
Duchenne muscular dystrophy
Sex linked diseases passed from mother to son. Appears at 3-4 years of age. Patients are incapacitated by 10-15. Death is commonly caused by respiratory failure or infection.
Inflammation of the skeletal muscle leading to weakness, frequently associate with dysphagia.
When the skin is involved with skeletal muscle weakness. Redness of the skin, dermatitis, lilac colored rash.
Difficult to diagnose. Associated with muscle aches, tenderness, stiffness along with fatigue and sleep disorders.
Chronic fatigue syndrome (CFS)
Persistent fatigue of no known cause. May be associated with impaired memory, sore throat, painful lymph nodes, muscle and joint pain, headaches, sleep problems, and immune disorders.
Myasthenia Gravis (MG)
Acquired autoimmune disorder in which antibodies interfere with muscle stimulation at the neuromuscular junction.
Amyotrophic Lateral Sclerosis (ALS)
Progressive degeneration of motor neurons that leads to muscle atrophy. Early signs are weakness, cramping, and muscle twitching. Usually leads to death from respiratory paralysis in 3-5 years.
Injury to a ligament caused by abnormal or excessive force at a joint without bone dislocation or fracture
Inflammation or tearing of ligaments and tendons
Tendinitis. Inflammation of the tendon, tendon sheath, and synovial membrane at the joint.