lower limb Flashcards
synovial joints
more mobile limb joints enclosed by an articular capsule outer fibrous and inner synovial membrane which secretes synovial fluid into the capsule
hip joint
ball and socket joint
round head of femur articulates with cup-like acetabulum
surrounded by labrum
Abduction, adduction, flexion, extension, rotation
labrum
ring of cartilage surrounding the hip joint
knee joint
hinge joint
round femoral condyles articulate with flat tibial condyles
only flexion and extension
fibular collateral ligament
(LateralCL) extends between lateral epicondyle of femur to the head of the fibula
tibial collateral ligament
(MedialCL) extends between the medial epicondyle of the femur to the superior and medial tibia
anterior cruciate ligament
runs from the anterior tibia, in-between the condyles to the posteromedial surface of the femoral lateral condyle
posterior cruciate ligament
runs fro the posterior intercondylar tibia to the anterolateral surface of the femoral medial condyle
medial and lateral menisci
shallow, cup-like discs, of cartilage, adhering to the flat surfaces of the tibial condyles
shock absorbers
distribute weight across the joint
superior tibiofibular joint
where the fibula proximally articulates with the tibia
inferior tibiofibular joint
where the fibula distally articulates with with the tibia compound joint held together by anterior and posterior tibiofibular ligaments
ankle joint
hinge joint at the junction of the tibia, fibula and talus
allows for plantar flexion and dorsiflexion
arches of the feet
tarsal and metatarsal bones for two longitudinal arches, and one transverse arch
psoas major: origin
bodies and transverse processes of lumbar vertebrae
psoas major: insertion
lesser trochanter
psoas major: action
flex thigh
psoas major: innervation
femoral nerve
iliacus: origin
iliac fossa
iliacus: insertion
lesser trochanter
iliacus: action
flex thigh
iliacus: innervation
femoral nerve
rectus femoris: origin
anterior inferior iliac spine
rectus femoris: insertion
tibial tuberosity (via patellar tendon)
rectus femoris: action
flex thigh
extend leg
rectus femoris: innervation
femoral nerve
vastus lateralis: origin
linea aspera
greater trochanter
vastus lateralis: insertion
tibial tuberosity (via patellar tendon)
vastus lateralis: action
extend leg
vastus lateralis: innervation
femoral nerve
vastus medialis: origin
linea aspera
vastus medialis: insertion
tibial tuberosity (via patellar tendon)
vastus medialis: action
extend leg
vastus medialis: innervation
femoral nerve
vastus intermedius: origin
anterior later shaft of femur
vastus intermedius: insertion
tibial tuberosity (via patellar tendon)
vastus intermedius: action
extend leg
vastus intermedius: innveration
femoral nerve
sartorius: origin
anterior superior iliac spine
sartorius: insertion
medial proximal tibia
sartorius: action
laterally rotate thigh
flex thigh
flex leg
sartorius: innervation
femoral nerve
gluteus maximus: origin
posterior ilium and sacrum
sacrotuberous ligament
gluteus maximus: insertion
gluteal tuberosity of femur
iliotibial tract
gluteus maximus: action
abducts thigh
laterally rotates thigh
extends thigh
gluteus maximus: innervation
inferior gluteal nerve
tensor fasciae latae: origin
anterior superior iliac spine
tensor fasciae latae: insertion
iliotibial tract
tensor fasciae latae: action
abducts thigh
medially rotates thigh
flexes thigh
tensor fasciae latae: innervation
superior gluteal nerve
gluteus medius: origin
lateral ilium (superior to minimus)
gluteus medius/minimus: insertion
greater trochanter
gluteus medius/minimus: action
abduct thigh
medially rotate thigh
gluteus medius/minimus: innervation
superior gluteal nerve
piriformis: origin
anterior surface of sacrum
piriformis: insertion
greater trochanter
piriformis: action
laterally rotates thigh
piriformis: innervation
S1-S2 ventral rami
semitendonosus: origin
ischial tuberosity
semitendonosus: insertion
medial proximal tibia
semitendonosus: action
extend thigh
flex leg
semitendonosus: innervation
tibial division of sciatic nerve
semimembranosus: origin
ischial tuberosity
semimembranosus: insertion
posterior surface of medial condyle of tibia
semimembranosus: action
extend thigh
flex leg
semimembranosus: innervation
tibial division of sciatic nerve
biceps femoris long head: origin
ischial tuberosity
biceps femoris long head: insertion
head of fibula
biceps femoris long head: action
extend thigh
flex leg
biceps femoris short head: origin
linea aspera
biceps femoris short head: insertion
head of fibula
biceps femoris short head: action
flex leg
biceps femoris short head: innervation
common fibular division of sciatic nerve
pectineus: origin
superior pubic ramus
pectineus: insertion
posterior surface of femur just distal to lesser trochanter
pectineus: action
adduct thigh
flex thigh
pectineus: innervation
obturator nerve
adductor longus: origin
body of pubis
adductor longus: insertion
linea aspera distal to adductor brevis
adductor longus: action
adduct thigh
flex thigh
adductor longus: innervation
obturator nerve
adductor brevis: origin
body of pubis
inferior pubic ramus
adductor brevis: insertion
linea aspera proximal to adductor longus
adductor brevis: action
adduct thigh
flex thigh
adductor brevis: innervation
obturator nerve
gracilis: origin
body of pubis
inferior pubic ramus
gracilis: insertion
medial surface of proximal tibia
gracilis: action
adduct thigh
flexes thigh
flexes leg
gracilis: innervation
obturator nerve
adductor magnus: origin
inferior pubic ramus
ischial ramus
ischial tuberosity
adductor magnus: insertion
adductor tubercle
linea aspera
adductor magnus: action
adduct thigh
extend thigh
adductor magnus: innervation
obturator nerve
tibial nerve
gastrocnemius: origin
posterior surface of lateral and medial epicondyles of femur
gastrocnemius: insertion
posterior calcaneus via achilles tendon
gastrocnemius: action
flex leg
plantar flex foot
gastrocnemius: innervation
tibial nerve
plantaris: origin
posterior surface of femur proximal to lateral epicondyle
plantaris: insertion
posterior calcaneus via achilles tendon
plantaris: action
flex leg
plantar flex foot
plantaris: innervation
tibial nerve
soleus: origin
posterior surface of proximal tibia and fibula
soleus: insertion
posterior calcaneus via achilles tendon
soleus: action
plantar flex foot
soleus: innervation
tibial nerve
flexor hallucis longus: origin
posterior surface of distal 2/3 fibula
flexor hallucis longus: insertion
distal phalanx of hallux
flexor hallucis longus: action
invert foot
flex hallux
plantar flex foot
flexor hallucis longus: innervation
tibial nerve
flexor digitorum longus: origin
posterior surface of middle tibia
flexor digitorum longus: insertion
distal phalanges of digits 2-5
flexor digitorum longus: action
flexes digits 2-5
inverts foot
plantar flexes foot
flexor digitorum longus: innervation
tibial nerve
tibialis posterior: origin
posterior surface of proximal tibia and fibula and interosseus membrane
tibialis posterior: insertion
navicular
cuneiforms
metatarsals 2-4
tibialis posterior: action
inverts foot
plantar flexes foot
tibialis posterior: innervation
tibial nerve
fibularis longus: origin
lateral surface of proximal fibula
head of fibula
fibularis longus: insertion
metatarsal 1
medial cuneiform
fibularis longus: action
everts foot
plantar flexes foot
fibularis longus: innervation
superficial fibular nerve
fibularis brevis: origin
lateral surface of distal fibula
fibularis brevis: insertion
dorsal surface of metatarsal 5
fibularis brevis: action
everts foot
plantar flexes foot
fibularis brevis: innervation
superficial fibular nerve
tibialis anterior: origin
lateral surface of proximal tibia
tibialis anterior: insertion
metatarsal 1
medial cuneiform
tibialis anterior: action
invert foot, DFF
tibialis anterior: innervation
deep fibular nerve
extensor hallucis longus: origin
anterior surface of middle fibula and interosseous membrane
extensor hallucis longus: insertion
distal phalanx of digit 1
extensor hallucis longus: action
extends digit 1
Dorsiflexes foot
extensor hallucis longus: innervation
deep fibular nerve
extensor digitorum longus: origin
anterior surface of proximal fibula and interosseous membrane
extensor digitorum longus: insertion
distal phalanges of digits 2-5
extensor digitorum longus: action
extends digits 2-5
dorsiflexes foot
extensor digitorum longus: innervation
deep fibular nerve
fibularis tertius: origin
anterior surface of distal fibula
fibularis tertius: insertion
dorsal surface of metatarsal 5
fibularis tertius: action
evert foot
dorsiflex foot
fibularis tertius: innervation
deep fibular nerve