Muscles OIA

Deltoid - Origin

clavicle, scapula

Deltoid - Insertion

deltoid tuberosity

Deltoid - Action

abduct arm at the shoulder

Biceps brachii Long head - Origin

supraglenoid tubercle

Biceps brachii Long head - Insertion

radial tuberosity

Biceps brachii Long head - Action

flex elbow

Biceps brachii Short head - Origin

coracoid process

Biceps brachii Short head - Insertion

radial tuberosity

Biceps brachii Short head - Action

flex elbow

Brachialis - Origin

anterior humerus

Brachialis - Insertion

coronoid process

Brachialis - Action

flex elbow

Coracobrachialis - Origin

coracoid process

Coracobrachialis - Insertion

shaft of humerus

Coracobrachialis - Action

adduct arm at the shoulder

Brachioradialis - Origin

lateral supracondylar ridge of humerus

Brachioradialis - Insertion

styloid process of radius

Brachioradialis - Action

flex elbow

Sartorius - Origin

anterior superior iliac spine

Sartorius - Insertion

medial tibia

Sartorius - Action

laterally rotate thigh at the hip

Tensor fasciae latae - Origin

anterior superior iliac spine

Tensor fasciae latae - Insertion

iliotibial tract

Tensor fasciae latae - Action

abduct thigh at the hip

Psoas major - Origin

body, transverse processes, & discs of T12 & L1-L5

Psoas major - Insertion

lesser trochanter

Psoas major - Action

flex thigh at the hip

Iliacus - Origin

iliac fossa, ala of sacrum

Iliacus - Insertion

lesser trochanter

Iliacus - Action

flex thigh at the hip

Rectus femoris - Origin

anterior inferior iliac spine

Rectus femoris - Insertion

tibial tuberosity via the quadriceps tendon, patella, & patellar ligament

Rectus femoris - Action

flex thigh at the hip

Vastus lateralis - Origin

linea aspera

Vastus lateralis - Insertion

tibial tuberosity via the quadriceps tendon, patella, & patellar ligament

Vastus lateralis - Action

extend knee

Vastus medialis - Origin

linea aspera

Vastus medialis - Insertion

tibial tuberosity via the quadriceps tendon, patella, & patellar ligament

Vastus medialis - Action

extend knee

Vastus intermedius - Origin

proximal shaft of femur

Vastus intermedius - Insertion

tibial tuberosity via the quadriceps tendon, patella, & patellar ligament

Vastus intermedius - Action

extend knee

Pectineus - Origin

pectineal line of pubis

Pectineus - Insertion

pectineal line of femur

Pectineus - Action

flex thigh at the hip

Gracilis - Origin

body of pubis

Gracilis - Insertion

tibia

Gracilis - Action

adduct thigh at the hip

Adductor longus - Origin

body of pubis

Adductor longus - Insertion

linea aspera

Adductor longus - Action

adduct thigh at the hip

Adductor brevis - Origin

body of pubis

Adductor brevis - Insertion

linea aspera

Adductor brevis - Action

adduct thigh at the hip

Adductor magnus - Origin

inferior ramus of pubis

Adductor magnus - Insertion

linea aspera

Adductor magnus - Action

adduct thigh at the hip

Tibialis anterior - Origin

interosseous membrane

Tibialis anterior - Insertion

medial cuneiform

Tibialis anterior - Action

dorsiflex foot

Extensor hallucis longus - Origin

interosseous membrane

Extensor hallucis longus - Insertion

distal phalanx of hallux

Extensor hallucis longus - Action

extend hallux

Extensor digitorum longus - Origin

interosseous membrane

Extensor digitorum longus - Insertion

distal phalanges 2-5

Extensor digitorum longus - Action

extend digits 2-5

Fibularis tertius - Origin

interosseous membrane

Fibularis tertius - Insertion

5th metatarsal

Fibularis tertius - Action

dorsiflex foot

Pectoralis major - Origin

sternum

Pectoralis major - Insertion

intertubercular sulcus

Pectoralis major - Action

horizontally adduct arm at the shoulder

Pectoralis minor - Origin

ribs 3-5

Pectoralis minor - Insertion

coracoid process

Pectoralis minor - Action

protract scapula

Subclavius - Origin

costal cartilage of rib 1

Subclavius - Insertion

clavicle

Subclavius - Action

stabilize pectoral girdle

Serratus anterior - Origin

ribs 1-8

Serratus anterior - Insertion

medial border of scapula

Serratus anterior - Action

protract scapula

Trapezius - Origin

occipital bone

Trapezius - Insertion

spine of scapula

Trapezius - Action

retract scapula

Latissimus dorsi - Origin

iliac crest

Latissimus dorsi - Insertion

intertubercular sulcus

Latissimus dorsi - Action

adduct arm at the shoulder

Levator scapulae - Origin

transverse processes (C1-C4)

Levator scapulae - Insertion

medial border of scapula

Levator scapulae - Action

elevate scapula

Rhomboid major - Origin

spinous processes (T2-T5)

Rhomboid major - Insertion

medial border of scapula

Rhomboid major - Action

retract scapula

Rhomboid minor - Origin

spinous processes (C7-T1)

Rhomboid minor - Insertion

medial border of scapula

Rhomboid minor - Action

retract scapula

Supraspinatus - Origin

supraspinous fossa

Supraspinatus - Insertion

greater tubercle of humerus

Supraspinatus - Action

abduct arm at the shoulder

Infraspinatus - Origin

infraspinous fossa