Exam 2 Flashcards
muscles of the talocrural (ankle) and subtalar (foot)
gastrocnemius
soleus
flexor digitorum longus
flexor hallucis longus
tibialis posterior
peroneus longus
peroneus brevis
tibialis anterior
peroneus tertius
extensor digitorum longus
extensor hallucis longus
gastrocnemius
origin - posterior, medial and lateral femoral condyles
insertion - posterior calcaneus (via Achilles tendon)
joint actions - knee flexion, ankle plantarflexion
soleus
origin - posterior, proximal tibia & fibula
insertion - posterior calcaneus (via Achilles tendon)
joint actions - ankle plantarflexion
flexor digitorum longus
origin - middle 1/3 of posterior tibia
insertion - distal phalanges of digits 2-5 (plantar)
joint actions - ankle plantarflexion, foot inversion, flexion of toes 2 -5
flexor hallucis longus
origin - middle 2/3 of the posterior fibula
insertion - distal phalanx of the 1st digit (plantar)
joint actions - ankle plantarflexion, foot inversion, great toe flexion
tibialis posterior
origin - posterior, proximal tibia & fibula
insertion - navicular, cuboid, cuneiforms, and base of metatarsals 2 - 5
joint actions - ankle plantarflexion, foot inversion
peroneus longus
origin - head and upper 2/3 of the lateral fibula
insertion - base of the 1st metatarsal and medial cuneiform (plantar)
joint actions - ankle plantarflexion, foot eversion
peroneus brevis
origin - middle 2/3 of lateral fibula
insertion - base of the 5th metatarsal (plantar)
joint actions - ankle plantarflexion, foot eversion
tibialis anterior
origin - upper 2/3 of lateral tibia
insertion - base of the 1st metatarsal, medial cuneiform
joint actions - ankle dorsiflexion, foot inversion
peroneus tertius
origin - distal 1/3 of anterior fibula
insertion - base of the 5th metatarsal (dorsal)
joint actions - ankle dorsiflexion, foot eversion
extensor digitorum longus
origin - upper 2/3 of anterior fibula
insertion - distal phalanges of digits 2 - 5 (dorsal)
joint actions - ankle dorsiflexion, foot eversion, extension of toes 2 - 5
extensor hallucis longus
origin - middle 2/3 of anterior fibula
insertion - distal phalanx of great toe
joint actions - ankle dorsiflexion, extension of great toe
dorsiflexors
Tibialis anterior
Peroneus Tertius
Extensor digitorum longus
Extensor hallucis longus
plantarflexors
gastrocnemius
soleus
Flexor digitorium longus
Flexor hallucis longus
Tibialis posterior
Peroneus longus
Peroneus brevis
subtalar inversion
Flexor digitorum longus
Flexor hallucis longus
Tibialis posterior
Tibialis anterior
subtalar eversion
Peroneus longus
Peroneus brevis
Peroneus tertius
Extensor digitorum longus
toe flexion
Flexor digitorum longus
toe extension
Flexor digitoum longus
Extensor digitorum longus
Extensor hallucis longus
coxafemoral joint/pelvis muscles
iliopsoas (psoas major + iliacus)
pectineus
tensor fascia latae (tfl)
gluteus maximus
gluteus medius
gluteus minimus
ADductor longus
ADductor brevis
ADductor magnus
deep lateral rotators
Piriformis
Obturator internus
Superior gemellus
Inferior gemellus
Quadratus femoris
Obturator externus
iliopsoas
origin: iliac fossa, transverse processed of L1-L5
insertion: lesser trochanter of femur
joint actions: hip flexion, lumbar flexion, anterior pelvic tilt
pectineus
origin: superior pubic ramus
insertion: lesser trochanter of femur and pectineal line of femur
joint actions: hip flexion, hip ADduction
tensor fascia latae (tfl)
origin: anterior iliac crest
insertion: anterolateral proximal tibia (Gerdy’s tubercle)
joint actions: hip ABduction, hip flexio, hip internal rotation, ipsilateral lateral pelvic tilt
gluteus maximus
origin: posterior ilium, sacrum and lumbar fascia
insertion: gluteal tuberosity and iliotibial tract
joint actions: hip extension, hip external rotation
gluteus medius
origin: superior lateral ilium
insertion: greater trochanter of femur
JOINT ACTION(s):
Hip abduction, ipsilateral lateral tilt of the pelvis, hip external rotation (posterior fibers) and hip internal rotation (anterior fibers)
gluteus minimus
origin: inferior lateral ilium
insertion: greater trochanter of femur
JOINT ACTION(s) :
Hip abduction, hip internal rotation
ADductor longus
origin: anterior pubic crest
insertion: middle 1/3 linea aspera
JOINT ACTION(s) :
Hip adduction
ADductor brevis
origin: inferior pubic ramus
insertion: proximal línea aspera
JOINT ACTION(s) :
Hip adduction
adductor magnus
origin: inferior pubic ramus and ischial tuberosity
insertion: adductor tubercle and línea aspera
JOINT ACTION(s) :
Hip adduction, hip extension
coxafemoral joint flexion
iliopsoas
Pectineus
coxafemoral joint ADduction
Pectineus
Adductor longus
Adductor brevis
Adductor magnus
coxafemoral joint internal rotation
Tensor fascia latae
Gluteus medius
Gluteus minimus
coxafemoral joint extension
Gluteus maximus
Adductor magnus
coxafemoral joint ABduction
Tensor fascia latae
Gluteus medius
Gluteus minimus
coxafemoral joint external rotation
Gluteus maximus
Gluteus medius
anterior tilt of pelvis
iliopsoas
ipsilateral lateral tilt
tensor fascia latae
gluteus medius
tibiofemoral (knee) joint
gastrocnemius
rectus femoris
vastus lateralis
vastus intermedius
vastus medialis
sartorius
gracilis
biceps femoris (long & short head)
semitendinosus
semimembranosus
popliteus
hamstring group
Biceps Femoris
Semitendinous
Semimembranous
quadriceps group
Rectus Femoris
Vastus Lateralis
Vastus Intermedius
Vastus Medialis
rectus femoris
O- anterior inferior iliac spine (AIIS)
I- tibial tuberosity (via patellar tendón)
JOINT ACTION(s) :
Knee extension, hip flexion, anterior tilt of pelvis
vastus lateralis
O- intertrochanteric line and linea aspera
I- tibial tuberosity via patellar tendon
JOINT ACTION(s)
Knee extension
vastus intermedius
O- upper 2/3 of anterior femur
I- tibial tuberosity via patellar tendon
JOINT ACTION(s)
Knee extension
vastus medialis
O- linea aspera
I- tibial tuberosity via patellar tendon
JOINT ACTION(s)
Knee extension
sartorius
O- anterior superior illiac spine (ASIS)
I- anteromedial proximal tibia
JOINT ACTION(s)
Hip flexion, hip external rotation, hip abduction, knee flexion
gracilis
O- inferior pubic ramus
I- anteromedial proximal tibia
JOINT ACTION(s)
Hip adduction, knee flexion
biceps femoris long head
O- ischial tuberosity
I- head of the fibula, lateral condyle of the tibia
JOINT ACTION(s)
Knee flexion, knee external rotation
biceps femoris short head
O- lower ½ of the linea aspera
I- head of the fibula, lateral condyle of the tibia
JOINT ACTION(s)
Knee flexion, knee external rotation
semitendinosus
O- ischial tuberosity
I- anteromedial proximal tibia
JOINT ACTION(s)
Hip extension, knee flexion, knee internal rotation, posterior pelvic tilt
semimebranosus
O- ischial tuberosity
I- posteromedial medial tibial condyle
JOINT ACTION(s)
Hip extension, knee flexion, knee internal rotation, posterior pelvic tilt
popliteus
O- posterior lateral condyle of the femur
I- proximal, posterior tibia
JOINT ACTION(s)
Knee flexion, knee internal rotation
knee flexion
Popliteus
Semimembranosus
Semitendinosus
Biceps femoris (both heads)
Gracilis
Sartorius
knee extension
Vastus medialis
Vastus intermedius
Vastus lateralis
Rectus femoris
Gastrocnemius
knee internal rotation
Popliteus
Semimembranosus
Semitendinosus
knee external rotation
biceps femoris (both heads)
muscles of the trunk & spine
sternocleidomastoid
splenius cervicis
splenius capitis
erector spinae
quadratus lumborum
rectus abdominis
external oblique
internal oblique
transverse abdominis
upper trapezius
iliopsoas (psoas major & iliacus)
sternocleidomastoid
O- manubrium of sternum, medial clavicle
I-mastoid process
JOINT ACTION(s)
Bil – flexion of cervical spine
Uni – ipsilateral lateral flexion and contralateral rotation of cervical spine
splenius cervicis
O- spinous processes of T3-T6
I- transverse process of C1-C3
JOINT ACTION(s)
Bil – extension of cervical spine
Uni – ipsilateral lateral flexion and rotation of cervical spine
splenius capitis
O- spinous processes of C7-T4
I-mastoid process
JOINT ACTION(s)
Bil – extension of cervical spine
Uni – ipsilateral lateral flexion and rotation of cervical spine
erector spinae
O-medial iliac crest, spinous & transverse processes, sacrum
I-posterior ribs, transverse processes, mastoid process
JOINT ACTION(s)
Bil: extension of cervical/lumbar spine, anterior tilt of pelvis
Uni: ipsilateral lateral flexion and rotation of cervical/lumbar spine
quadratus lumborum
O-posterior iliac crest
I-12th rib and transverse processes of L1-L4
JOINT ACTION(s)
Bil: extension of lumbar spine, anterior tilt of pelvis
Uni: ipsilateral lateral flexion of lumbar spine, contralateral lateral tilt of pelvis
rectus abdominis
O-pubic crest
I-xiphoid process, costal cartilage of ribs 5-7
JOINT ACTION(s)
Bil – flexion of lumbar spine, posterior tilt of pelvis
external oblique
O-lower 8 ribs
I-inguinal ligament, iliac crest, fascia of rectus abdominis
JOINT ACTION(s)
Bil – flexion of lumbar spine, posterior tilt of pelvis
Uni – ipsilateral lateral flexion, contralateral rotation of lumbar spine, contralateral lateral tilt of pelvis
internal oblique
O-inguinal ligament, iliac crest, lumbar fascia
I-costal cartilage ribs 8-10, linea alba
JOINT ACTION(s)
Bil: flexion of lumbar spine, posterior tilt of pelvis
Uni: ipsilateral lateral flexion,
ipsilateral rotation of lumbar spine, contralateral lateral tilt of pelvis
transverse abdominis
O- inguinal ligament, iliac crest, lumbar fascia
I-pubic crest, linea alba
JOINT ACTION(s)
Bil: forced expiration
upper trapezius
O-occipital protuberance
I-posterior lateral 1/3 of clavicle
JOINT ACTION(s)
Bil: cervical extension, shoulder girdle elevation
trunk/spine (lumbar and cervical) flexion (sagittal)
sternocleidomastoid
Rectus abdominus
Internal oblique
External oblique
iliopsoas
trunk/spine (lumbar and cervical) ipsilateral lateral flexion (frontal)
Internal oblique
Splenius cervicis
Splenius capitis
Erector spinae
Erector spinae
trunk/spine (lumbar and cervical) ipsilateral rotation (transverse)
Splenius cervicis
Splenius capitis
Erector spinae
sternocleidomastoid
Quadratus lumborum
Internal oblique
External oblique
trunk/spine (lumbar and cervical) extension (sagittal)
Splenius cervicis
Splenius capitis
Erector spinae
Upper trapezius
Erector spinae
Quadratus lumborum
trunk/spine (lumbar and cervical) contralateral rotation (transverse)
sternocleidomastoid
External oblique
trunk/spine (lumbar and cervical) anterior tilt of pelvis
Erector spinae
Quadratus lumborum
External oblique
iliopsoas
trunk/spine (lumbar and cervical) posterior tilt of pelvis
Rectus abdominis
Internal oblique
trunk/spine (lumbar and cervical) contralateral lateral tilt
Quadratus lumborum
External oblique
Internal oblique