Anatomy Lab Exercise 14 Flashcards
origin
nonmoving attachment point
insertion
moving attachment point
belly
enlarged area of the muscle between the origin and insertion
extensors
muscles on the posterior surface of the arm
flexors
muscles on the anterior surface of the arm
adductors
muscles on the medial surface of the thigh
abductors
muscles on the lateral surface of the thigh
agonist
larger muscle in a group; prime mover
synergist
smaller muscle in a group that assists the agonist
antagonist
muscle opposing the movement caused by the agonist
fixators
muscles that stabilize the point of origin
rectus
muscle fibers parallel to body midline
transverse
muscle fibers perpendicular to body midline
oblique
muscle fibers diagonal to body midline
maximus
largest muscle in a group
medius
middle sized muscle in a group
minimus
smallest muscle in a group
magnus
large muscle