Anatomy OIAs

triceps brachii long head origin

infraglenoid tubercle of scapula

triceps brachii lateral head origin

posterior shaft of humerus

triceps brachii medial head origin

posterior shaft of humerus

triceps brachii insertion

common tendon onto olecranon process of ulna

triceps brachii action

elbow extension

biceps brachii short head origin

coracoid process of scapula

biceps brachii long head origin

supraglenoid tubercle of scapula

biceps brachii insertion

radial tuberosity of radius

biceps brachii action

elbow flexion/radioulnar supination

deltoid origin

clavicle/acromion/spine of scapula

deltoid insertion

deltoid tuberosity of humerus

deltoid overall action

glenohumeral abduction

anterior deltoid action

flexes/medially rotates the GH joint

middle deltoid action

abducts the GH joint

posterior deltoid action

extends/laterally rotates GH joint

pectoralis major origin

clavicle/sternum/costal cartilages

pectoralis major insertion

greater tubercle of humerus

pectoralis major action

glenohumeral flexion/medial rotation/adduction

gastrocnemius origin

medial/lateral femoral condyles

gastrocnemius insertion

posterior/superior calcaneus

gastrocnemius action

plantarflexion/tibiofemoral flexion

tibialis anterior origin

lateral condyle/proximal tibial shaft

tibialis anterior insertion

medial cuneiform/metatarsal I

tibialis anterior action

dorsiflexion/inversion

biceps femoris short head origin

linea aspera

biceps femoris short head action

tibiofemoral flexion

biceps femoris long head origin

ischial tuberosity

biceps femoris insertion

head of fibula/lateral tibial condyle

biceps femoris long head action

femorocoxal extension/tibiofemoral flexion

semimembranosus origin

ischial tuberosity

semimembranosus insertion

medial tibial condyle

semimembranosus action

femorocoxal extension/tibiofemoral flexion

semitendinosus origin

ischial tuberosity

semitendinosus insertion

medial, proximal shaft of tibia

semitendinosus action

femorocoxal extension/tibiofemoral flexion

vastus intermedius origin

anterior shaft of femur

vastus insertion

patella/tibial tuberosity

vastus action

tibiofemoral extension

vastus medialis origin

linea aspera/medial supracondylar line/ intertrochanteric line

vastus lateralis origin

linea aspera/greater trochanter/intertrochanteric line

rectus femoris origin

AIIS (anterior inferior iliac spine)/acetabular labrum

rectus femoris insertion

patella/tibial tuberosity

rectus femoris action

tibiofemoral extension/femorocoxal flexion

gracilis origin

inferior ramus/body of pubis/ischial ramus

gracilis insertion

medial tibial condyle

gracilis action

femorocoxal adduction

adductor magnus origin

ischial ramus/inferior pubic ramus/ischial tuberosity

adductor magnus insertion

linea aspera/adductor tubercle of femur

adductor magnus action

femorocoxal adduction

gluteus maximus origin

ilium/sacrum/coccyx

gluteus maximus insertion

gluteal tuberosity

gluteus maximus action

extends hip

iliacus origin

iliac fossa/ala of sacrum

iliacus insertion

lesser trochanter of femur

iliacus action

trunk and femorocoxal flexion

psoas major origin

lumbar vertebrae

psoas major insertion

lesser trochanter of femur

psoas major action

trunk and femorocoxal flexion

rectus abdominis origin

pubic crest/symphysis

rectus abdominis insertion

xiphoid process/costal cartilages

rectus abdominis action

trunk flexion

sternocleidomastoid (SCM) origin

manubrium/clavicle

SCM insertion

mastoid process of temporal bone

SCM bilateral action

cervical flexion

SCM unilateral action

cervical lateral flexion/rotation