Muscles Of The Upper Body

Front 1

Trapezius

Back 1

Muscle that moves the Scapula
Origin- Skull Cervical & Thoracic Vertebra
spec - U Occipital Bone, Ligament Nuchae, SP of C7
M SP of T1-T5

L SP of T6-T12

Insertion- Clavicle & Scapula
spec U Clavicle
M Acromion Process
L Spine of Scapula

Actions- Elevation (u), Depression (l), Retraction (m) Lateral Rotation (m&l)

Hint 1

Front 2

Levator Scapulae

Back 2

Muscle that moves the Scapula
Origin- Cervical Vertebrae

spec - TP C1-C4, Posterior Tubercles of TP C1-C4

Insertion- Scapula
spec - Medial border from the superior angle to the root of the spine

Actions- Elevation, Downward Rotation, Retraction

Hint 2

Front 3

Pectoralis Minor

Back 3

Muscle that moves the Scapula
Origin- Ribs
spec - Ribs 3-5

Insertion- Scapula
spec- Coracoid Process

Actions-Elevates Ribs 3-5, Depression, Protraction, Downward Rotation

Hint 3

Front 4

Triceps Brachii

Back 4

Muscle that moves the Elbow
Origin- Scapula & Humerus
spec- LH: Infraglenoid tubercle of the scapula
LatH: Posterior shaft of the Humerus
MedH: Posterior shaft of the Humerus

Insertion: Ulna
spec- LH: Olecranon process
LatH: Olecranon process

MedH: Olecranon process

Actions: Elbow Extension, Shoulder Extension, Shoulder Adduction

Hint 4

Front 5

Forearm Extensors

Back 5

Muscles that move the Wrist, Hand, Fingers

Origin- Humerus & Ulna
Insertion- Metacarpals & Phalanges

Actions- Wrist Extension, Interphalangeal Extension, Metacarpophalangeal Extension

Hint 5

Front 6

Forearm Flexors

Back 6

Muscles that move the Wrist, Hand, Fingers

Origin- Humerus, Ulna, Radius
Insertion- Carpals, Metacarpals, Phalanges

Actions- Wrist Flexion, Interphalangeal Flexion, Metacarpophalangeal Flexion

Hint 6

Front 7

Supraspinatus

Back 7

Muscle that moves the Shoulder - Rotator Cuff
Located in the Supraspinous fossa, deep to the Traps upper fibres. Its belly runs underneath the acromion & attaches to the humerus' greater tubercle
Actions - Shoulder Abduction

Hint 7

Front 8

Infraspinatus

Back 8

Muscle that moves the Shoulder - Rotator Cuff
Located in the Infraspinous fossa. Most of its belly is superficial with a medial portion deep to the Traps and lateral portion deep to the Deltoid. Attaches immediately posterior to the supraspinatus on the Greater Tubercle & is a synergist with the Teres Minor in lateral rotation.
Actions- Lateral Rotation, Adduction, Extension, Horizontal Extension

Hint 8

Front 9

Teres Minor

Back 9

Muscle that moves the Shoulder - Rotator Cuff
Squeezed between Infraspinatus & Teres Major located high in the arm pit (axilla).

Teres Minor & Major are antagonists in the rotation of the Humerus

Hint 9

Front 10

Subscapularis

Back 10

Muscle that moves the Shoulder - Rotator Cuff
Located on the scapulas anterior surface between subscapula fossa and the Serratus Anterior. Attaches to the humerus' lesser tubercle.
Action- Medial Rotation

Hint 10

Front 11

Brachialis

Back 11

Muscle that moves the Elbow
Origin- Humerus
spec: Distal half of the Anterior Shaft

Insertion- Ulna
Spec: Tuberosity

Actions: Elbow Flexion, Supinates the Forearm to mid-supine, Pronates the Forearm to Mid-Prone.

Hint 11

Front 12

Brachioradialus

Back 12

Muscle that moves the Elbow
Origin- Humerus
spec: Lateral Supracondylar ridge of the Humerus

Insertion- Radius
spec: Styloid process of the Radius

Actions- Elbow Flexion, Supinates the forearm to mid supine, pronates the forearm to mid pronate

Hint 12

Front 13

Teres Major

Back 13

Muscle that moves the Shoulder

Origin- Scapula
spec: Inferior third of the dorsal surface of the inferior lateral border.

Insertion- Humerus
spec: Medial lip of the Bicipital groove

Actions- Shoulder Adduction, Shoulder Extension, Medial Shoulder Rotation

Hint 13

Front 14

Latissimus Dorsi

Back 14

Muscle that moves the Shoulder
Origin- Lower Thoracic Vertebra, Lumbar Vertebra, Sacrum & Illium
spec: SP of T7 to T12 & L1 to L5, Sacrum, Posterior illiac crest, Thoracolumbar Fascia, Lowest 3 or 4 Ribs, Inferior angle of Scapula.

Insertion- Humerus
spec: Bicipital Groove

Actions: Shoulder Extension, Shoulder Adduction, Horizontal Shoulder Extension, Medial Shoulder Rotation

Hint 14

Front 15

Pectoralis Major

Back 15

Muscle that moves the Shoulder
Origin- Clavicle, Sternum, Ribs
spec: Medial clavicle, Sternum, Costal Cartilages of Ribs 1-7

Insertion- Humerus
spec: Bicipital Groove

Actions: Flexion, Horizontal Flexion, Extension, Adduction, Medial Rotation

Hint 15

Front 16

Deltoids

Back 16

Muscle that moves the Shoulder

Origin- Clavicle & Scapula

spec: Lateral Clavicle, acromion process & spine of scapula.

Insertion- Humerus
spec: Deltoid tuberosity of the Humerus

Actions- Abduction, Flexion, Extension, Horizontal Flexion, Horizontal Extension, Medial Rotation, Lateral Rotation

Hint 16

Front 17

Serratus Anterior

Back 17

Muscles that move the Scapula

Origin- Ribs
spec: Ribs 1-9

Insertion- Scapula
spec: Anterior surface of the medial border

Actions- Protraction, Lateral Rotation, Elevation, Depression

Hint 17

Front 18

Rhomboids Major & Minor

Back 18

Muscles that move the scapula
Origin- Thoracic Vertebra
spec: Minor- SP of C7-T1 & Inferior part of the ligamentum nuchae
Major: SP T2-T5

Insertion- Scapula
Minor: Root of the spine
Major: Between the root of the spine & the inferior angle

Actions- Retraction, Elevation, Medial Rotation

Hint 18