Anatomy of the lower limb Flashcards

1
Q

what are the 3 intrinsic ligaments of the hip joint?

A

iliofemoral
pubofemoral
ischiofemoral

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2
Q

which muscles are responsible for hip abduction and medial rotation?

A

gluteus medius and minimus

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3
Q

which nerves innervate gluteus Maximus, medium and minimus?

A

maximus- inferior gluteal nerve

medius and minimus- superior gluteal nerve

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4
Q

what is the action of gluteus Maximus?

A

hip extension and assists in lateral rotation

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5
Q

name the deep lateral rotators of the gluteal region and their innervation?

A

piriformis- nerve to piriformis
obturator internus- nerve to obturator internus
gemelli- superior- nerve to obturator internus, inferior- nerve to quadratus femoris
quadratus femoris- nerve to quadratus femoris

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6
Q

which muscles are responsible for hip flexion and their innervation?

A

anterior thigh muscles- Iliopsoas, sartorial and quadriceps femoris (rectus femoris)
innervation- femoral nerve except psoas major portion of iliopsoas (anterior rami of L1 to L3 )

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7
Q

what are the muscles of quadriceps femoris and their action and innervation?

A
rectus femoris
vastus lateralis 
vastus intermedius 
vastus medius 
action- mainly knee extension, some hip flexion 
innervation- femoral nerve
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8
Q

what is the action and innervation of pectinius?

A

transitional muscle between the anterior and medial compartment
action- adduction and hip flexion
innervation- femoral nerve and obturator nerve

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9
Q

what are the muscles of the posterior compartment of the thigh and their action ?

A

biceps femoris
semitenidinous
semimembranous
action- knee flexion, hip extension

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10
Q

what is the common origin and innervation of the posterior compartment of the thigh?

A

origin- ischial tuberosity (except short head of biceps femoris- linea aspera)
innervation- sciatic nerve- all tibial part except short head of biceps femoris- common fibular part

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11
Q

what is the blood supply of the posterior compartment of the thigh ?

A

inferior gluteal nerve and perforating branches of profunda femoris

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12
Q

what is the action of the medial compartment of the thigh?

A

adduction of thigh (some knee flexion and lateral rotation)

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13
Q

what are the muscles of the medial compartment?

A

Adductor Magnus, adductor longus, adductor brevis, obturator externus, gracilis

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14
Q

what is the innervation of the medial compartment?

A

all obturator nerve except hamstring part of Adductor Magnus- tibial part of siatic nerve

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15
Q

what is the blood supply of the medial compartment?

A

obturator artery- branch of internal iliac

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16
Q

what is the pas anserinus?

A

the common tendinous insertion of sartorius, gracilis and semitendinous onto the medial surface of the tibia

17
Q

what are the muscles of the anterior compartment of the leg?

A

tibialis anterior
extensor digitorum longus
extensor hallucis longus
fibularis tertius

18
Q

what are the actions of the anterior compartment of the leg?

A

dorsiflex and invert the foot and ankle

19
Q

what is the innervation of the anterior compartment of the leg?

A

deep fibular (peroneal) nerve

20
Q

what is the blood supply of the anterior compartment of the leg?

A

anterior tibial artery

21
Q

what are the muscles of the lateral compartment of the leg and their action?

A

fibularis longus
fibularis brevis
action- eversion of the foot (some plantar flexion)

22
Q

what is the innervation of the lateral compartment of the leg?

A

superficial fibular (peroneal) nerve- terminal branch of common fibular nerve

23
Q

what is the arterial supply of the lateral compartment of the leg?

A

perforating branches from the anterior tibial artery (proximally) and from the fibular artery (distally)

24
Q

what are the superficial muscles of the posterior compartment of the leg and their common insertion?

A

gastrocnemius
plantaris
soleus
insertion- form the calcaneal tendon and insert on the calcneous

25
Q

what are the deep muscles of the posterior compartment of the leg?

A

popliteus- unlocks knee
tibialis posterior
flexor digitorum longus
flexor hallucis longus

26
Q

what are the actions of the posterior compartment of the leg?

A

plantar flexes foot and toes and invert the foot

also flexes knee (gastrocnemius and plantaris)

27
Q

what is the innervation of the posterior compartment of the leg?

A

tibial nerve

28
Q

what is the blood supply of the posterior compartment of the leg?

A

posterior tibial artery

29
Q

what are the seven tarsal bones?

A

talus, calmness, navicular, cuboid, medial, intermediate and lateral cuneiform

30
Q

what is the subtalar joint?

A

a plane synovial joint between the talus and calcaneus

31
Q

what are the arches of the foot?

A

medial longitudinal arch
lateral longitudinal arch
transverse arch