exam 4

Question 0

what nerve innervates the hamstring muscles?

Answer 0

tibial division of the sciatic nerve (L5, S1, S2)

Question 1

what are the hamstrings muscles?

Answer 1

semitendinosus
semimembranosus
long head of biceps femoris

Question 2

where do the hamstring muscles originate?

Answer 2

ischial tuberosity

Question 3

what are the muscles of Quadriceps femoris?

Answer 3

Rectus femoris
vastus lateralis
Vastus medialis
Vastus intermedius

Question 4

what is the innervation of Quadriceps femoris?

Answer 4

Femoral Nerve (L2, L3, L4)

Question 5

What is the actions of Quadriceps femoris muscles?

Answer 5

Extend leg at knee joint

Rectus femoris: also steadies hip joint and help iliopsoas flex thigh

Question 6

Origin of Rectus Femoris

Answer 6

AIIS

Ilium superior to acetebulum

Question 7

Origin of Vastus Lateralis

Answer 7

Greater trochanter

Lateral lip of linea aspera of femur

Question 8

Origin of Vastus Medialis

Answer 8

Intertrochanteric line

Medial lip of linea aspera of femur

Question 9

Origin of Vastus Intermedius

Answer 9

Anterior and lateral surfaces of shaft of femur

Question 10

Origin of pectineus

Answer 10

Superior ramus of pubis

Question 11

Insertion of pectineus

Answer 11

Pectineal line of femur-just inferior to lesser trochanter

Question 12

Innervation of pectineus

Answer 12

Femoral nerve (L2,L3)

Question 13

Action of Pectineus

Answer 13

Adducts thigh
flexes thigh
assists with medial rotation of thigh

Question 14

Origin of Sartorius

Answer 14

ASIS

superior part of notch inferior to ASIS

Question 15

Insertion of Sartorius

Answer 15

Superior part of medial surface of tibia

Question 16

Innervation of Sartorius

Answer 16

Femoral nerve (L2,L3)

Question 17

Action of Sartorius

Answer 17

Flexes thigh at hip joint
Abducts thigh at hip joint
Laterally rotates thigh at hip joint
Flexes leg at knee joint

Question 18

Adductor longus

Answer 18

Origin: body of pubis inferior to pubic crest
Insertion: Middle 1/3 of linea aspera
Innervation: Obturator nerve (L2,L3,L4)
Action: Adducts thigh

Question 19

Adductor Brevis

Answer 19

Origin: body and inferior ramus of pubis
Insertion: pectineal line and proximal part of linea aspera
Innervation: Obturator nerve (L2,L3,L4)
Actions: Adducts thigh

Question 20

Adductor Magnus (adductor part)

Answer 20

Origin: Inferior ramus of pubis and ramus and ischium
Insertion: gluteal tuberostiy. linea aspera, medial supracondylar line
Innervation: Obturator nerve (L2,L3,L4)
Action: adducts thigh, Flexes thigh

Question 21

Adductor Magnus (Hamstring part)

Answer 21

Origin: ischial tuberosity
Insertion: adductor tubercle of femur
Innervation: tibial part of sciatic nerve (L4)
Action: adducts thigh and extends thigh

Question 22

Gracilis

Answer 22

Origin: body and inferior ramus of pubis
Insertion: superior part of medial surface of tibia
Innervation: Obturator nerve (L2, L3)
Action: adducts thigh, flexes leg, and helps rotate leg medially

Question 23

Obturator Externus

Answer 23

Origin: Margins of obturator foramen and obturator membrane
Insertion: trochanteric fossa of femur
Innveration: obturator nerve (L3,L4)
Action: Laterally rotates thigh and steadies head of femur in acetebulum

Question 24

Adductor hiatus

Answer 24

Transmits the femoral artery and vein from the anterior compartment of the thigh to the popliteal fossa posterior to the knee

Question 25

Femoral Canal contents

Answer 25

Empty space and lymphatics

Question 26

Contents of adductor canal

Answer 26

femoral artery and vein
saphenous nerve
nerve to vastus medialis