Muscles of the Pelvic Limb

Question 1

What is the origin of the m. tensor fascia lata?

Answer 1

Tuber coxae

Question 2

What is the insertion of the m. tensor fascia lata?

Answer 2

Fascia lata

Question 3

What is the function of the m. tensor fascia lata?

Answer 3

Tough connective tissue; aids in the process of abduction; involved in extension of the hock

Question 4

What is the origin of the m. biceps femoris?

Answer 4

Sacrum, sacrosciatic ligament, ischial tuber

Question 5

What is the insertion of the m. biceps femoris?

Answer 5

Patellar ligament, patella, calcaneal tuber, tibia (via fascia)

Question 6

What is the function of the m. biceps femoris?

Answer 6

Extension of the hip, flexion of the stifle, extension of the caudal region of the hock

Question 7

What is the origin of the m. semitendinosus?

Answer 7

Sacrum and caudal vertebrae, sacrosciatic ligament, ischial tuber

Question 8

What is the insertion of the m. semitendinosus?

Answer 8

Cranial tibia, crural fascia, calcaneal tuber

Question 9

What is the function of the m. semitendinosus?

Answer 9

Extension of the hip, stifle, and hock (when the limb is weight-bearing), and flexion of the stifle (when the limb is suspended); ventral to the m. biceps femoris

Question 10

What is the origin of the m. semimembranosus?

Answer 10

Caudal vertebrae, sacrosciatic ligament, ischial tuber

Question 11

What is the insertion of the m. semimembranosus?

Answer 11

Medial distal femur, medial proximal tibia, fascia lata

Question 12

What is the function of the m. semimembranosus?

Answer 12

Extension of the hip and stifle (when the limb is weight-bearing) and flexion of the stifle (when the limb is suspended); deep to m. semitendinosus

Question 13

What is the origin of the m. gluteus medius?

Answer 13

Wings of ilium, tuber coxae, sacrum, sacrosciatic ligament

Question 14

What is the insertion of the m. gluteus medius?

Answer 14

Greater trochanter of the femur

Question 15

What is the function of the m. gluteus medius?

Answer 15

Extension of the hip

Question 16

What is the origin of the m. adductor?

Answer 16

Ventral pelvis

Question 17

What is the insertion of the m. adductor?

Answer 17

Medial femur

Question 18

What is the function of the m. adductor?

Answer 18

Adduction of the pelvic limb

Question 19

What is the origin of the m. gracilis?

Answer 19

Pelvic symphysis

Question 20

What is the insertion of the m. gracilis?

Answer 20

The medial aspect of the proximal tibia

Question 21

What is the function of the m. gracilis?

Answer 21

Main muscle responsible for the adduction of the pelvic limb

Question 22

What is the origin of the m. quadratus femoris?

Answer 22

Ventral sacrum; lateral border of the ischium

Question 23

What is the insertion of the m. quadratus femoris?

Answer 23

Caudal proximal femur; next to m. adductor

Question 24

What is the function of the m. quadratus femoris?

Answer 24

Outward (external) rotation of the hip; adductor of the thigh

Question 25

What is the origin of the m. gastrocnemius?

Answer 25

Caudal aspect of the femoral condyles

Question 26

What is the insertion of the m. gastrocnemius?

Answer 26

Tuber calcanei (calcaneus)

Question 27

What is the function of the m. gastrocnemius?

Answer 27

Extension of the hock

Question 28

What is the origin of the m. iliopsoas?

Answer 28

Ventral aspect of lumbar vertebrae, sacrum, and ilium (underneath transverse processes of the vertebrae)

Question 29

What is the insertion of the m. iliopsoas?

Answer 29

Lesser trochanter of the femur

Question 30

What is the function of the m. iliopsoas?

Answer 30

Flexion of the hip

Question 31

What is the origin of the m. quadriceps femoris?

Answer 31

Proximal femur, body of ilium

Question 32

What is the insertion of the m. quadriceps femoris?

Answer 32

Patella

Question 33

What is the function of the m. quadriceps femoris?

Answer 33

Pulls on patella, allowing for extension of the knee; contains 4 heads