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Flashcards in exam 4 Deck (27):
0

what are the hamstrings muscles?

semitendinosus
semimembranosus
long head of biceps femoris

1

what nerve innervates the hamstring muscles?

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

2

where do the hamstring muscles originate?

ischial tuberosity

3

what are the muscles of Quadriceps femoris?

Rectus femoris
vastus lateralis
Vastus medialis
Vastus intermedius

4

what is the innervation of Quadriceps femoris?

Femoral Nerve (L2, L3, L4)

5

What is the actions of Quadriceps femoris muscles?

Extend leg at knee joint
Rectus femoris: also steadies hip joint and help iliopsoas flex thigh

6

Origin of Rectus Femoris

AIIS
Ilium superior to acetebulum

7

Origin of Vastus Lateralis

Greater trochanter
Lateral lip of linea aspera of femur

8

Origin of Vastus Medialis

Intertrochanteric line
Medial lip of linea aspera of femur

9

Origin of Vastus Intermedius

Anterior and lateral surfaces of shaft of femur

10

Origin of pectineus

Superior ramus of pubis

11

Insertion of pectineus

Pectineal line of femur-just inferior to lesser trochanter

12

Innervation of pectineus

Femoral nerve (L2,L3)

13

Action of Pectineus

Adducts thigh
flexes thigh
assists with medial rotation of thigh

14

Origin of Sartorius

ASIS
superior part of notch inferior to ASIS

15

Insertion of Sartorius

Superior part of medial surface of tibia

16

Innervation of Sartorius

Femoral nerve (L2,L3)

17

Action of Sartorius

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

18

Adductor longus

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

19

Adductor Brevis

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

20

Adductor Magnus (adductor part)

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

21

Adductor Magnus (Hamstring part)

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

22

Gracilis

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

23

Obturator Externus

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

24

Adductor hiatus

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

25

Femoral Canal contents

Empty space and lymphatics

26

Contents of adductor canal

femoral artery and vein
saphenous nerve
nerve to vastus medialis