11 Questions
What is the criterion for muscles named according to the direction of their muscle fibers?
Direction of muscle fibers
Which of the following is an example of a muscle named after its location?
Sternocleidomastoid (SCM)
What is the criterion for muscles named according to the number of their origins?
Number of origins
Which of the following is an example of a muscle named after its action?
Flexor
What is the criterion for muscles named according to their relative size?
Relative muscle size
Which of the following structures is a bundle of myofilaments?
Myofibril
What is the connective tissue sheath that wraps around individual muscle fibers?
Endomysium
Which muscle is responsible for stabilizing a structure so that a particular action can be performed?
Fixator
What is the broad sheet of fibrous connective tissue that attaches muscle to muscle?
Aponeurosis
Which of the following structures is the smallest contractile unit of skeletal muscle?
Sarcomere
What is the muscle that produces an opposing action to the agonist muscle called?
Antagonist
This review sheet covers the identification and definitions of key structures in skeletal muscle anatomy, including myofilaments, myofibrils, muscle fibers, fascicles, and sarcomeres. Learn about the components that make up the structural hierarchy of skeletal muscle.
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