Lower Limb Muscles

Question 1

Vastus intermedius

Answer 1

O: tibial tuberosity
A: -extends knee
I: femoral nerve

Question 2

Vastus medialis

Answer 2

O: tibial tuberosity
A: -extends knee
I: femoral nerve

Question 3

Vastus lateralis

Answer 3

O: tibial tuberosity, lateral edge of linea aspera
A: -extends knee
I: femoral nerve

Question 4

Rectus femoris

Answer 4

O: AIIS, tibial tuberosity
A: -hip flexion
-knee extension
I: femoral nerve

Question 5

Sartorius

Answer 5

O: ASIS, pes anserinus 
A: -hip flexion
     -hip lateral rotation
     -hip abduction 
I: femoral nerve

Question 6

Iliopsoas

Answer 6

O: lesser trochanter
A: -hip flexion
     -hip lateral rotation
I: -femoral nerve
   -L2-L3 spinal nerves

Question 7

Quadratus Femoris

Answer 7

O: ischial tuberosity
A: -hip lateral rotation
I: nerve to quadratus femoris

Question 8

Inferior gemellus

Answer 8

O: ischial tuberosity, greater trochanter
A: -hip lateral rotation
I: nerve to quadratus femoris

Question 9

Superior gemellus

Answer 9

O: greater trochanter
A: -hip lateral rotation
I: nerve to obturator internus

Question 10

Obturator externus

Answer 10

O: greater trochanter
A: -hip lateral rotation
I: obturator nerve

Question 11

Obturator internus

Answer 11

O: greater trochanter
A: -hip lateral rotation
I: nerve to obturator internus

Question 12

Piriformis

Answer 12

O: greater trochanter
A: -hip lateral rotation
I: S1-S2 spinal nerves

Question 13

Tensor fasciae latae

Answer 13

O: iliotibial tract 
A: -hip flexion
     -hip medial rotation 
     -hip abduction 
I: superior gluteal nerve

Question 14

Gluteus minimus

Answer 14

O: greater trochanter
A: -hip medial rotation
-hip abduction
I: superior gluteal nerve

Question 15

Gluteus medius

Answer 15

O: greater trochanter
A: -hip medial rotation
-hip abduction
I: superior gluteal nerve

Question 16

Gluteus Maximus

Answer 16

O: gluteal tuberosity, iliotibial tract
A: -hip extension
-hip lateral rotation
I: inferior gluteal nerve

Question 17

Gastrocnemius

Answer 17

O: medial and lateral condlye
A: -flexes knee
-plantarflexes foot
I: tibial nerve

Question 18

Gracilis

Answer 18

O: pes anserinus 
A: -adducts hip 
     -flexes hip
     -medially rotates knee
     -flexes knee 
I: obturator nerve

Question 19

Adductor Magnus

Answer 19

O: adductor tubercle, linea aspera 
A: -adducts hip
     -extends hip
     -flexes hip 
I: obturator nerve, sciatic nerve

Question 20

Adductor brevis

Answer 20

O: linea aspera
A: -adducts hip
-flexes hip
I: obturator nerve

Question 21

Adductor Longus

Answer 21

O: linea aspera
A: -adducts hip
-flexes hip
I: obturator nerve

Question 22

Pectineus

Answer 22

O: pubis
A: -flexes hip
-adducts hip
I: femoral nerve

Question 23

Semitendinisus

Answer 23

O: pes anserinus
A: -flexes knee
-extends hip
I: sciatic nerve

Question 24

Semimembranosus

Answer 24

O: ischial tuberosity
A: -extends hip
-flexes knee
I: sciatic nerve

Question 25

Biceps femoris

Answer 25

O: ischial tuberosity, linea aspera
A: -extends knee
-flexes knee
I: sciatic nerve

Question 26

Soleus

Answer 26

O: head of fibula
A: -plantar flexes foot
I: tibial nerve

Question 27

What muscles attach to the tibial tuberosity?

Answer 27

• rectus femoris
• vastus medialis
• vastus laterialis
• vastus intermedius

Question 28

Muscles attached to pes anserinus?

Answer 28

• sartorius
• gracilis
• semitendonosus

“Say grace b4 T”