Musculoskeletal Anatomy of Lower Extremity Powerpoint Musculature

Question 1

Pectineus

Answer 1

Function: Flexion of femur at hip, adduction of femur at hip
Insertion: Pubis to femur
Nerve: Femoral
Vasculature: Obturator artery (branch off internal illiac

Question 2

Psoas major

Answer 2

Function: Flexion of femur at hip, external rotation of femur at hip
Insertion: T12-L5 to lesser trochanter
Nerve: Femoral
Vasculature: don’t worry bout it

Question 3

Iliacus

Answer 3

Function: Flexion of femur at hip, external rotation of femur at hip
Insertion: Iliac crest to lesser trochanter
Nerve: femoral
Vasculature; Medial femoral circumflex artery

Question 4

Sartorius

Answer 4

Function: Flexion of femur at hip, flexion of tibia at knee, external rotation of femur at hip
Insertion: Anterior superior Iliac spine to medial tibia
Nerve: Femoral
Vasculature: femoral

Question 5

Rectus femoris

Answer 5

Function: Flexion of the femur at the hip, extension of the tibia at the knee
Insertion: Anterior inferior iliac spine to tibial tuberocity
Nerve: Femoral
Vasculature: femoral artery

Question 6

Vastus lateralis

Answer 6

Function: Extension of tibia at the knee
Insertion: Linea aspera of femur to the tibial tuberocity
Nerve: Femoral
Vasculature: Descending limb of the lateral circumflex femoral artery

Question 7

Vastus intermedius

Answer 7

Function: Extension of tibia at the knee
Insertion: Linea aspera of femur to the tibial tuberocity
Nerve: Femoral
Vasculature: Femoral artery

Question 8

Vastus medialis

Answer 8

Function: Extension of tibia at the knee
Insertion: Linea aspera of femur to the tibial tuberocity
Nerve: Femoral
Vasculature: femoral artery

Question 9

Adductor longus

Answer 9

Function: Adduct femur at hip
Insertion: Pubis to linea aspera of femur
Nerve: Obturator
Vasculature: Profunda femoral artery

Question 10

Adductor brevis

Answer 10

Function: Adduct femur at hip
Insertion: Pubis to linea aspera of femur
Nerve: Obturator
Vasculature: Profunda femoral artery

Question 11

Adductor magnus

Answer 11

Function: Adduct femur at hip
Insertion: Pubis to linea aspera AND adductor tubercle of femur
Nerve: Obturator and sciatic
Vacsulature: Profunda femoral artery

Question 12

Gracillis

Answer 12

Function: Adduct femur at hip, flex tibia at knee
Insertion: Pubis to medial tibia
Nerve: Obturator
Vasculature: Medial circumflex branch of femoral artery

Question 13

Tensor fascia lata

Answer 13

Function: Flexion of femur at hip, abduction of femur at hip, internal rotation of femur at hip
Insertion: Iliac crest to lateral tibia
Nerve: Gluteal nerve
Vasculature: Superior gluteal artery

Question 14

Gluteus maximus

Answer 14

Function: Extension of femur at hip, external rotation of femur at hip
Insertion: Iliosacrum to IT tract
Nerve: inferior gluteal nerve
Vasculature: Gluteal arteries

Question 15

Gluteus medius

Answer 15

Function: Abduction of femur at hip
Insertion: Ilium to greater trochanter
Nerve: Superior gluteal nerve
Vasculature: superior gluteal artery

Question 16

Gluteus minimus

Answer 16

Function: Abduction of femur at hip
Insertion: Ilium to greater trochanter
Nerve: Superior gluteal nerve
Vasculature: superior gluteal artery

Question 17

Piriformis

Answer 17

Function: Abduction of femur at hip
Insertion: Sacrum to greater trochanter
Nerve: Superior gluteal nerve
Vasculature: superior gluteal artery

Question 18

Obturator internus/externus

Answer 18

Function: Lateral rotation of femur at hip
Insertion: Obturator foramen to greater trochanter
Nerve: Obturator
Vasculature: Obturator artery

Question 19

Superior/Inferior Gemelli

Answer 19

Function: Lateral rotation of femur at hip
Insertion: Ischial spine to greater trochanter
Nerve: Obturator
Vasculature: Inferior gluteal artery

Question 20

Quadratis femoris

Answer 20

Function: Lateral rotation of femur at hip
Insertion: Ischial spine to greater trochanter
Nerve: Obturator
Vasculature: Inferior gluteal artery

Question 21

Semimembranosus

Answer 21

Function: Flexion of the tibia at the knee, extension of femur at the hip
Insertion: Ischial tuberosity to medial tibia
Nerve: Tibial nerve (sciatic)
Vasculature: Profunda femoral artery

Question 22

Semitendinosus

Answer 22

Function: Flexion of the tibia at the knee, extension of femur at the hip
Insertion: Ischial tuberosity to medial tibia
Nerve: Tibial nerve (sciatic)
Vasculature: Perforating arteries

Question 23

Biceps femoris long head

Answer 23

Function: Flexion of tibia at knee, extension of femur at hip
Insertion: Ischial tuberosity and femur to fibula
Nerve: Tibial nerve(sciatic)
Vasculature: Perforating arteries

Question 24

Tibialis anterior

Answer 24

Function: Dorsiflextion of the foot at the ankle, Inversion of foot at the ankle
Insertion: Tibia to the medial cuniform
Nerve: Deep fibular nerve
Vasculature: Anterior tibial artery

Question 25

Extensor digitorum longus

Answer 25

Function: Dorsiflection of foot at ankle, Extension of toes at MTP joint Insertion: Tibia to distal phalanx digits 2-5 Nerve: Deep fibular nerve Vasculature: Anterior tibial artery

Question 26

Extensor hallucus longus

Answer 26

Function: Dorsiflexion of the ankle, extension of digit 1 at MTP joint Insertion: Tibia to distal phalanx digit 1 Nerve: Deep fibular nerve Vasculature: Anterior tibial artery

Question 27

Fibularis tertius

Answer 27

Function: Dorsiflexion of foot at ankle, eversion of the foot at the ankle Insertion: Fibula to inferior side of 5th metatarsal underside Nerve: deep fibular nerve Vasculature: anterior tibial artery

Question 28

Fibularis longus

Answer 28

Function: plantarflexion of foot at ankle, eversion of foot at ankle Insertion: Fibula to inferior side of first metatarsal Nerve: Superficial fibular nerve Vasculature: Anterior tibial artery

Question 29

Fibularis brevis

Answer 29

Function: Plantarflexion of foot at ankle, eversion of foot at ankle Insertion: Fibula to superior side of 5th metatarsal Nerve: Superficial fibular nerve Vasculature: Anterior tibial artery

Question 30

Gastrocnemius

Answer 30

Function: plantarflexion of foot at ankle, flexion of tibia at knee Insertion: Condyle of the femur to achilles tendon Nerve: Tibial nerve Vasculature: sural arteries

Question 31

Soleus

Answer 31

Function: Plantarflexion of foot at ankle Insertion: Tibia to achilles tendon Nerve: Tibial nerve Vasculature: Sural arteries

Question 32

Plantaris

Answer 32

Function; Plantarflexion of foot at ankle Insertion: Femur to achilles tendon Nerve: Tibial Vasculature: Popliteal artery

Question 33

Flexor Hallucis longus

Answer 33

Function: Dorsiflexion of foot at ankle, flexion of 1st toe at MTP Insertion: tibia to distal phalanx of toe one Nerve: Tibial Vasculature: Posterior tibial artery

Question 34

Flexor digitorum longus

Answer 34

Function: Dorsiflexion of foot at ankle, flexion of 2-5 toes at MTP Insertion: tibi to distal phalanges of toes 2-5 Nerve: tibial Vasculature: posterior tibial artery

Question 35

Tibialis posterior

Answer 35

Function: Plantarflexion of foot at ankle, Inversion of foot at ankle Insertion: Tibia to navicular Nerve: Tibial Vasculature: Posterior tibial artery

Question 36

Biceps femoris short head

Answer 36

Function: Flexion of tibia at knee Insertion: Femur to fibula Nerve: Common fibular nerve Vasculature: Perforating arteries