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What are the properties of muscles?
excitability, contractibility, extensibility, elasticity and adaptability
What is a circular muscle that opens and closes?
sphincter
What forearm motion is in this picture?
supination
What motions are required at the hip to create a snow angel?
abduction and adduction
What is the type of contraction where there is no joint motion?
isometric
What is the name of the muscle that assists the prime mover?
synergist
What is the main neurotransmitter in the neuromuscular junction?
Acetylcholine
Name three muscular injection sites?
deltoid, gluteus medius, vastus lateralis
What is the motion of bringing your toes to your nose?
dorsiflexion
What is a sustained muscle contraction caused by a decrease in Ca+?
tetany
What anatomical structure involved in a strain?
muscle
What causes the pain involved in carpal tunnel syndrome?
pinching of a nerve (median nerve)
What is the autoimmune disease that attacks the acetylcholine receptors in the neuromuscular junction?
myasthenia gravis
What test is performed to determine a pinched nerve?
electromyography - EMG
Where are the erector spinae muscles?
Along the vertebral column
Biceps femoris is part of what muscle group?
hamstrings
