Lecture 17 Anatomy Notes (Muscles of the Upper Extremity)

Upper extremity muscles

17 cards   |   Total Attempts: 182
  

Cards In This Set

Front Back
Synergistic
Muscles that work together to produce a movement
Antagonistic
Muscles that work in opposition to one another; one moves and another moves to slow the movement down (ex: hamstrings)
Examples of shoulder movements
Flexion, extension, adduction, abduction, Internal rotation, external rotation, horizontal adduction, horizontal abduction
Examples of elbow movement
Flexion and extension
Appendicular muscles of the arm
Muscles that move the:-pectoral girdle-glenohumeral joint/arm
Muscles that move the pectoral girdle:
Originate on the axial skeleton and inserts on the clavicle and scapulastabilizes the scapula
Anterior muscles that move the pectoral girdle:
Pectoralis major, Serratus anterior, subclavius
Posterior muscles that move the pectoral girdle:
Levator scapulae, rhomboid major, rhomboid minor, Trapezuis
The action of the pectoralis major
Adduction and internal rotation
The action of the serratus anterior
Protracts and stabilizes the scapula
The action of the subclavius
Stabilizes the scapula... its VERY small!
Action of rhomboid major and minor
Retraction
Action of trapezius
Elevates and retracts shoulder and scapula, rotates the scapula
Muscles of the rotator cuff
Subscapularis, supraspinatus, infraspinatus and teres minor
Muscles that move the glenohumeral joint: axial skeleton region
Latissimus dorsipectoralis major