Short Hip Rotators/Quads/Hamstring

Question 1

Name the Short Hip Lateral Rotators

Hint: there are 6!

Answer 1

1) Piriformis
2) Obturator Internus
3) Gemellus Superior
4) Gemellus Inferior
5) Quadratus Femoris
6) Obturator Externus

Question 2

Origin: inner margin of obturator foramen

Insertion: posteromedial aspect of greater trochanter

Action: external rotation

Answer 2

Obturator Internus

Question 3

Origin: Anterior Sacrum through the greater sciatic notch to…

Insertion: posteromedial aspect of the greater trochanter

Actions: external rotation, abduction at 60 degrees, medial rotation at >60 degrees

Answer 3

Piriformis

Question 4

Origin: ischial spine
Insertion: posteromedial aspect of the greater trochanter (via tendon of obturator internus)

Action: external rotation

Answer 4

Gemellus Superior

Question 5

Origin: ischial tuberosity
Insertion: posteromedial aspect of greater trochanter

Action: External Rotation

Answer 5

Gemellus Inferior

Question 6

Origin: outer margin of the obturator foramen
Insertion: posteromedial aspect of the greater trochanter

Action: external rotation

Answer 6

Obturator Externus

Question 7

A triangle-shaped sesamoid bone in the tendon of the quadriceps

Answer 7

The Patella

Question 8

Origin: lateral ischial tuberosity
Insertion: intertrochanteric crest

Action: external rotation

Answer 8

Quadratus Femoris

Question 9

Name the muscles of the Quadriceps

Answer 9

1) Rectus Femoris
2) Vastus Lateralis
3) Vastus Medialis
4) Vastus Intermedius

Question 10

Origin: AIIS and superior acetabular rim
Insertion: tibial tuberosity

Action: hip flexion; knee extension

Answer 10

Rectus Femoris

Question 11

Origin: Anterior Pubic Bone
Insertion: Just inferior to lesser trochanter

Action: Hip adduction; hip flexion

Hint: makes up the floor of the femoral triangle

Answer 11

Pectineus

Question 12

Origin: Anterior Pubic Bone
Attachment: Proximal Linea Aspera

Action: Hip adduction; hip flexion

Answer 12

Adductor Brevis

Question 13

Origin: Anterior Pubic Bone
Insertion: Linea Aspera

Action: Hip Adduction; Hip Flexion

Answer 13

Adductor Longus

Question 14

Origin: Anterior Pubic Bone
Insertion: Proximal Anteromedial Tibia (1 of Pes Anserinus Muscles)

Action: Hip adduction; knee flexion; knee medial rotation

Hint: Only hip adductor to cross the knee

Answer 14

Gracilis

Question 15

Origin: Anterior Pubic Bone
Insertion: Linea Aspera, Supracondylar

Action: Hip adduction; hip flexion

Answer 15

Adductor Magnus - (adductor part)

Question 16

Origin: Ischial Tuberosity
Insertion: Adductor Tubercle

Action: hip adduction; hip extension

Answer 16

Adductor Magnus - (hamstring part)

Question 17

Origin: Ischial Tuberosity
Insertion: Fibular Head

Action: Hip extension; knee flexion; knee lateral rotation

Answer 17

Biceps Femoris (long head)

Question 18

Origin: Line Aspera (mid-shaft)
Insertion: Fibular Head

Action: Knee Flexion; Knee Lateral Rotation

Answer 18

Biceps Femoris (short head)

Question 19

Origin: Ischial Tuberosity
Insertion: Proximal Anteromedial Tibia (one of the pes anserinus)

Action: Hip extension: knee flexion; knee medial rotation

Answer 19

Semitendinosus

Question 20

Origin: Ischial tuberosity
Insertion: posterior aspect of the medial condyle of the tibia

Action: hip extention; knee flexion; knee medial rotation

Answer 20

Semimembranosus