DISSECTION 1: GLUTEAL REGION AND POSTERIOR LOWER LIMB 1

Question 1

Gluteus Maximus

Answer 1

O: (4) ilium (posterior to posterior gluteal line, dorsal surface of sacrum and coccyx, sacrotuberous ligament

I(2): iliotibial tract, gluteal tuberosity

A: extend and laterally rotate thigh

N: inferior gluteal N

Question 2

Gluteus Medius

Answer 2

O(2): external surface of ILIUM between anterior and posterior gluteal lines and GLUTEAL FASCIA

I: greater trochanter(laterally)

A: abduct and medially rotate thigh

N: superior gluteal N

Question 3

Gluteus Minimus

Answer 3

O(2): lateral surface of ILIUM , SACROTUBEROUS LIGAMENT

I: anterior surface of GREATER TROCHANTER

A: abducts and medially rotates hip

N: superior gluteal nerve

Question 4

Tensor fascia Lata

Answer 4

O: Anterior superior iliac spine
I: iliotibial tract
A: abducts, medially rotates, flexes thigh
N: superior gluteal N

Question 5

Piriformis

Answer 5

O: anterior surface of sacrum
I: greater trochanter(laterally)
A: lateral rotation
N: anterior rami of S1 and S2 (spinal nerves)

Question 6

Superior gemellus

Answer 6

O: ischial spine(medial)
I: greater trochanter(lateral)
A: lateral rotation
N: Nerve to obturator internus

Question 7

Obturator internus

Answer 7

O: OBTURATOR FORAMEN(internal margin) and OBTURATOR MEMBRANE(inner surface)
A: lateral rotation
I: greater trochanter(lateral)
N: nerve to obturator internus

Question 8

Inferior gemellus

Answer 8

O: ischial tuberosity( medial)
I: greater trochanter(lateral) AND OBTURATOR INTERNUS TENDON
A: lateral rotation
N: nerve to quadratus femoris

Question 9

Quadratus femoris

Answer 9

O: ischial tuberosity(medial)
I: quadrate tubercle(lateral)
A: lateral rotation
N: nerve to quadratus femoris

Question 10

Biceps Femoris

Answer 10

O:
LONG HEAD: ischial tuberosity
SHORT HEAD: lateral lip of linea aspera

I: head of fibula (Fem=Fib)

A: extend hip, flex knee
N:
LONG HEAD: tibial division of sciatic N
SHORT HEAD: fibular division of sciatic N

Question 11

Semitendinosus

Answer 11

O: ischial tuberosity
I: tibia (medial surface of superior part)
A: extend thigh, flex knee, medial rotation
N: tibial division of sciatic N

Question 12

Semimembranosus

Answer 12

O: ischial tuberosity
I: medial condyle of tibia (posteriorly)
A: extend thigh, flex knee, medial rotation
N: tibial division of sciatic N

Question 13

Adductor magnus

Answer 13

O:
Hamstring Part: ischial tuberosity
Adductor part: inferior ramus of pubis and ramus of ischium

I:
hamstring part: adductor tubercle
adductor part(3): gluteal tuberosity, linea aspera, medial supracondylar line of femur

A:
Adductor part: adduct and flex thigh at hip joint
Hamstring part: extend thigh

N: hamstring part: tibial division of sciatic N
Adductor part: obturator N