Name a muscle that is named for its:
Size and action:
Orientation of muscle fibers and location:
Action and location:
What does the name "sternocleidomastoid" tell you about this muscle?
Size and action: Biceps (Latin term "bis" meaning "two" and "ceps" meaning "head" referring to the muscle having two heads and its action of flexing the elbow joint)
Orientation of muscle fibers and location: Rectus abdominis (Latin term "rectus" meaning "straight" and "abdominis" referring to the location of the muscle in the abdomen and the straight orientation of its fibers)
Action and location: Deltoid (Greek term "delta" referring to the triangular shape of the muscle and its action of abducting the shoulder)
The name "sternocleidomastoid" tells us that this muscle originates from the sternum and clavicle and inserts on the mastoid process of the temporal bone.