Lab 4: Muscles of respiration, the abdomen & the lower extremity

diaphragm

external intercostals

internal intercostals

rectus abdominis

pubic crest & symphysis

rectus abdominis origin

xiphoid process & costal cartilages

rectus abdominis insertion

flexes trunk

rectus abdominis action

linea alba

tendinous inscriptions

external obliques

internal obliques

external obliques

transverse abdominus

iliopsoas

psoas major & iliacus

psoas major

iliacus

psoas major

iliacus

iliac fossa & ala of sacrum

iliacus origin

lesser trochanter of femur

iliacus insertion

flexes the hip and trunk

iliacus action

lumbar vertebrae

psoas major origin

lesser trochanter of femur

psoas major insertion

flexes the hip and trunk

psoas major action

sartorius

sartorius

gracilis

inferior ramus, body of pubis & ischial ramus

gracilis origin

medial condyle of tibia

gracilis insertion

adducts the hips

gracilis action

adductor longus

iliopsoas

adductor magnus

ischial tuberosity, ischial ramus & pubic ramus

adductor magnus origin

linea aspera & adductor tubercle of femur

adductor magnus insertion

adducts the hip

adductor magnus action

quadriceps femoris

rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

rectus femoris

anterior inferior iliac spine & acetabular labrum

rectus femoris origin

patella & tibial tuberosity

rectus femoris insertion

extends the knee & flexes hip

rectus femoris action

vastus lateralis

linea aspera, greater trochanter & intertrochanteric line

vastus lateralis origin

patella & tibial tuberosity

vastus lateralis insertion

extends the knee

vastus lateralis action

vastus intermedius

anterior shaft of femur

vastus intermedius origin

patella & tibial tuberosity

vastus intermedius insertion

extends the knee

vastus intermedius action

vastus medialis

linea aspera, medial supracondylar line & intertrochanteric line

vastus medialis origin

patella & tibial tuberosity

vastus medialis insertion

extends the knee

vastus medialis action

quadriceps tendon

tensor fasciae latae

iliotibial tract (IT band)

gluteus maximus

gluteus maximus

ilium, sacrum & coccyx

gluteus maximus origin

gluteal tuberosity of femur

gluteus maximus insertion

extends the hip

gluteus maximus action

gluteus medius

gluteus minimus

piriformis

superior gemellus

obturator internus

inferior gemellus

quadratus femoris

gluteus medius

piriformis

superior gemellus

obturator internus

inferior gemellus

quadratus femoris

biceps femoris

long head and short head

ischial tuberosity

biceps femoris long head origin

head of fibula & lateral condyle of tibia

biceps femoris long head insertion

extends the hip & flexes the knee

biceps femoris long head action

long head of biceps femoris

short head of biceps femoris

linea aspera

short head of biceps femoris origin

head of fibula & lateral condyle of tibia

short head of biceps femoris insertion

extends the hips & flexes the knees

short head of biceps femoris action

semimembranosus

ischial tuberosity

semimembranosus origin

medial & upper shaft of tibia

semitendinosus insertion

medial condyle of tibia

semimembranosus insertion

ischial tuberosity

semitendinosus origin

extends thigh & flexes knee

semimembranosus action

semitendinosus

extends the hip & flexes the knee

semitendinosus action

tibialis anterior

lateral condyle & proximal shaft of tibia

tibialis anterior origin

medial cuneiform & 1st metatarsal

tibialis anterior insertion

dorsiflexion

tibialis anterior action

extensor digitorum longus

extensor hallucis longus

extensor digitorum longus

peroneus longus/fibularis longus

peroneus brevis/fibularis brevis