Muscle/Movement Terminology Flashcards
(33 cards)
Origin (Os)
Less moveable, proximal attachment of muscle.
Insertion (Is)
More moveable, distal attachment of muscle.
Action (As)
Movement(s) produced by a particular muscle.
Unilateral
One side
Bilateral
Both sides
Contralateral
On the opposite side.
Ipsilateral
On the same side.
Agonist
Muscle responsible for a particular action (a.k.a. prime mover).
Antagonist
Muscle that opposes agonist.
Syngergist
Muscle(s) that assist(s) agonist.
Fixator
Muscles(s) that prevent(s) unwanted movement at a joint.
Stabilizer
Muscle(s) that directly stabilizes a joint.
Tendon
Connects muscle to bone
Aponeurosis
Flat, broad tendon
Flexion
Decreasing a joint angle (from 180°)
Extension
Increasing a joint angle (back to 180°)
Lateral flexion
Flexion in the frontal plane (spine)
Abduction
Movement away from the midline.
Adduction
Movement toward the midline.
Protraction
Anterior movement of a body part (e.g. scapula)
Retraction
Posterior movement of a body part (e.g. scapula)
Depression
Movement of a body part inferiorly/caudally (e.g. scapula)
Elevation
Movement of a body part superiorly/crainally (e.g. scapula)
Rotation
Movement in the transverse plane