Muscular Anatomy: Naming Muscles.......

I). Classifying Muscle Function

A). Agonist or Prime Mover

major force for movement

B). Antagonists

oppose a specific movement.

C). Synergist

Aid prime movers

D). Fixators

muscles origin immobile.

Depending on the type of movement, the same muscle can function in all three categories

II). Attachments

A).  Insertion (I):

   moves the bone.

B).  Origin (O): 

  less movable.

C).  Direct attachments:

   the muscles outer connective tissue fuses to the bone.

D).  Indirect attachments: 

  the muscles outer connective tissue extends and forms a tendon that connects to the bone

III).  Naming of Muscles

A). Location of the muscle

B). Shape of the muscle

C). Relative size of muscle

	Maximus
	Minimus

	Longus
	Brevis

D). Number of origins

	Biceps
	Triceps
	Quadriceps

E). Location of the attachments

F). Action