MOVESCI 231 Exam 2

erector spinae

erector spinae function 2

F: Trunk extension, ipsilateral lateral flexion

Erector Spinae SA

SA: palpate ridge of deep back muscles either side of Lumbar spinous processes

Interspinalis

Intertransversarius

Lateral Pterygoid I

17

I: Neck of mandible

lateral pterygoid function 3

Contralateral glide, protrudes and depresses jaw

Longus Capitis

32

Longus Colli

Longus colli function 3

F: Neck flexion and rotation (bilateral)

Neck lateral flexion (unilateral)

Masseter O

12

O: Zygomatic arch

Masseter I

12

I: ramus of mandible (lateral surface) and coronoid process

masseter function

elevate and protrude mandible

Medial Pterygoid I

18

I: Ramus and angle of mandible (medial surface)

Multifidus

Obliquus Capitis Inferior

Obliquus Capitis Superior

Obliquus Capitis Superior function 2

MA: Extends the head (bilateral)

Ipsilateral lateral flexion of head (unilateral)

Rectus Capitis Posterior Major

Rectus Capitis Posterior Minor

Temporalis O

1

O: Lateral skull

Temporalis I

1

I: coronoid process and ramus of mandible

Temporalis SA

clench teeth, palpate on temporal bone above the ear

Semispinalis Capitis

Splenius Capitis I

21

I: Mastoid process, occipital bone

Rotatores

Scalenus Anterior

Scalenus anterior Insertion

46A

I: first rib

Scalenus Medius

Scalenus medius I

46B

I: first rib

Scalenus Posterior

Scalenus Posterior I

46C

I: second rib

Psoas Major

psoas major function

F: Hip flexion (superiorly)

Trunk flexion (inferiorly)

Quadratus Lumborum

Quadratus Lumborum function 2

F: Lumbar extension (bilateral), ipsilateral lateral trunk flexion (unilateral)

rectus abdominus function

trunk flexion

Rectus abdominis SA

elicit a muscle contraction (trunk flexion of pelvic tilt)

Sternocleidomastoid I

20

I: Mastoid process

SCM function

contralateral rotation, ipsilateral lateral flexion, neck flexion

SCM surface anatomy

turn the head to the side, bring the ear to the chest, palpate along anterolateral neck

Trapezius I

25

I: Lateral third of clavicle (upper), acromion process (middle), spine of scapula (lower)

Trapezius Insertion on scapula

25 on spine of scapula

Trapezius actions 4

Scapular retraction (all fibers)

Upward rotation (upper and middle)

Scapular elevation (upper)

Scapular depression (lower)

upper trapezius SA

palpate uppermost back and resist scapular elevation

Biceps Brachii, Long Head

12

BBLH actions

elbow flexion, supination, shoulder flexion

Biceps Brachii, Short Head

13

Biceps Brachii, Short Head O

78b

O: Coracoid process

Biceps brachii short head muscle actions 3

Elbow flexion, forearm supination, Shoulder flexion

Biceps Brachii Surface Anatomy

resist elbow flexion

Subscapularis Arm model

5

Subscapularis Torso Model

Subscapularis O

77

O: subscapular fossa of scapula

Subscapularis muscle action

shoulder medial rotation

Infraspinatus Arm Model

7

Supraspinatus Arm model

6

Infraspinatus Torso Model

Infraspinatus O

74

O: Infraspinous fossa

Triceps Brachii, Long Head O

81a

O: Infraglenoid process of scapula

Infraspinatus I

74

O: Infraspinous fossa

I: Greater tubercle

Infraspinatus muscle action

F: Shoulder lateral rotation

Subscapularis I

77

I: Lesser tubercle

Triceps brachii long head muscle actions

Shoulder and elbow extension

Teres Minor O

75

O: Lateral border of scapula

Teres Major O

76

O: Inferior angle of scapula

Teres Major muscle actions 3

Shoulder adduction, extension, medial rotation

Teres major surface anatomy

Resist shoulder extension/medial rotation/adduction (handcuff), palpate lateral to inferior angle of scapula

Rhomboid Major I

48

I: Medial border of scapula

Rhomboid Minor I

49

I: Medial border of scapula

Rhomboids muscle actions 2

Scapular retraction and downward rotation

Pectoralis Minor I

58

I: Coracoid process

Pec Minor actions

Scapular protraction

Coracobrachialis

15

Coracobrachialis O

79

O: coracoid process of scapula

Coracobrachialis muscle actions 2

Shoulder flexion and adduction

Coracobrachialis I

79

I: Anteromedial humerus

Levator Scapulae I

50

I: Superior angle of scapula

Levator Scapulae actions 2

Scapular elevation and downward rotation

Latissimus Dorsi I

47

I: Medial lip of intertubercular groove

Latissimus dorsi muscle action

Shoulder extension, adduction, medial rotation (handcuff)

Lat. Dorsi surface anatomy

handcuff motion, palpate below inferior angle of scapula

Pectoralis Major clavicular head O

57a

O: medial third of clavicle

Pec major sternal head actions

Shoulder extension

pec major clavicular head actions

Shoulder flexion

Pec Major SA

Resist shoulder adduction, palpate just medial to shoulder joint

Serratus Anterior I

51

I: Medial border and inferior angle of scapula

serratus anterior action 2

Scapular protraction and upward rotation

Biceps Brachii I

78

I: Radial tuberosity

Brachialis

14

Deltoid

10

Triceps Brachii, Lateral Head

16

Teres Major Arm model

9

Teres Minor Arm model

8

Brachioradialis

19

Supinator

34

Abductor Pollicis Longus

35

Brevis - 41

Extensor Pollicis Longus

36

Extensor Indicis

37

extensor indicis action 2

extension of index finger, wrist extension