Girdle
•Distal Attachment–Medial and horizontal border of the coracoid process of the scapula
•Action–Protraction, Downward rotation
Pectoralis Minor
–Raise arm toward the anterior
Flexion
•Rotation of the radioulnar joint, to face the palms of the hands anterior
Supination
Proximal attachment •The medial epicondyle of the humerus (Common flexor tendon
Distal attachment •The annular (transverse carpal) ligament, the palmar aponeurosis
Palmaris Longus
Blood supply for trapezius
Ascending and descending branches of the transverse cervical a
•Proximal Attachment –Upper surface of the medial side of the first rib, where it joins the costal cartilage, and adjacent costal cartilage
Subclavius
–Movement of the anterior surface of the arm, away from the midline of the body
Lateral Rotation
Distal Attachment •Anterior surface of the coronoid process of the ulna •The tuberosity of the ulna immediately below the coronoid process
Brachialis
Proximal attachment - The medial epicondyle of the humerus (Common flexor tendon
Distal attachment - The anterior surface of the base of the second metacarpal, with a tendinous slip to the anterior surface of the base of the third metacarpal
Flexor carpi radialis
Sternocleidomastoid is responsible for several actions, what are they?
Flexion, Lateral Flexion to the same side, rotation to the opposite side
•Distal Attachment –Vertebral border of the scapula from the scapular spine to the inferior angle.
•Action –Retraction, Downward turning of the Scapula
Rhomboid Major/Minor
•Proximal Attachment –Whole length of the sternum, costal cartilage of the first 6 ribs near the sternum, medial 2/3 of the anterior border of the clavicle
Pectoralis Major
Actions
•Flexes the humerus at the humeroulnar joint
•Supinates the humerus from a pronated position
•Pronates the humerus from a supinated position
Brachioradialis
Distal attachment •Posterior surface of the base of the second metacarpal
Action •Extension and radial deviation of the hand at the wrist
Extensor carpi radialis longus
If the quadriceps muscle was damaged beyond function, it would still be possible to flex the knee with other muscular involvement. True or False
False
•Proximal Attachment –Occipital bone, ligamentum nuchae, spinous process of the 7th cervical and all 12 thoracic vertebrae
Trapezius
•Distal Attachment –Deltoid tuberosity of the humerus (lateral aspect of the humerus near the mid point
Deltoid
Proximal Attachment •Lateral epicondyle of the humerus, the annular ligament, the radial collateral ligament, and the supinator crest, which descends from the posterior side of the radial notch of the ulna
Supinator
Flexes the distal phalanx of the thumb (IP), flexes the proximal phalanx of the thumb (mp)
Assists with flexion of the hand at the wrist
Flexor pollicis longus
Medial rotation of the knee joint takes place in which plane?
Transverse
•Upper Attachment –Transverse process of the upper 5 cervical vertebrae
•Action –Elevates the scapula, turns the glenoid fossa and lateral angle downward
Levator Scapulae
•Distal Attachment –Posterior surface of the middle of the greater tubercle of the humerus
•Action –Lateral rotation of the humerus
–Horizontal abduction of the humerus from a flexed position
Infraspinatus
Action •Initiates extension of the forearm at the humeroulnar joint, helps to maintain the fully extended position at the elbow joint
Anconeus
Proximal attachment - Lateral epicondyle of the humerus
Distal attachment - Posterior surface of the base of the 2nd and 3rd phalanges of the four fingers
Extensor digitorum communis
Muscles only do one thing.....what is it?
PULL!!