Hindlimbs

Question 1

Origin of the TFL

Answer 1

Coxal tuber

Question 2

Insertion of TFL

Answer 2

Together with the fascia lata on patella, lat. patellar lig., and cran. border of tibia; with supf. gluteal muscle on third trochanter

Question 3

Action of TFL

Answer 3

Flexes hip joint; protracts hindlimb; extends stifle; tenses fascia lata

Question 4

Innervation of TFL

Answer 4

Cran. gluteal n.

Question 5

Origin of gluteus medius

Answer 5

Longissimus lumborum; gluteal surface of ilium; sacroiliac and sacrosciatic ligament

Question 6

Insertion of gluteus medius

Answer 6

Greater trochanter

Question 7

Action of gluteus medius

Answer 7

Extends hip joint; abducts hindlimb

Question 8

Innervation of gluteus medius

Answer 8

Cranial gluteal nerve

Question 9

Origin of biceps femoris

Answer 9

Vertebral head: spinous and transverse processes of last three sacral vertebrae; sacrosciatic ligament and tail fascia

Pelvic head: ischial tuber

Question 10

Insertion of biceps femoris

Answer 10

Patella; lateral and middle patellar ligaments; cranial border of tibia; crural fascia; and via its tarsal tendon on calcaneus

Question 11

Action of biceps femoris

Answer 11

Extends hip and stifle joint; with its caudal division flexes stifle; abducts hindlimb; extends hindlimb; extends hock joint

Question 12

Innervation of biceps femoris

Answer 12

Caudal gluteal and sciatic nerves

Question 13

Origin of semitendinosus

Answer 13

Vertebral head: last sacral and first two caudal vertebrae; tail fascia and sacrosciatic ligament

Pelvic head: ventral aspect of ischial tuber

Question 14

Insertion of semitendinosus

Answer 14

Cranial border of tibia; crural fascia; via tarsal tendon on calcaneus

Question 15

Action of semitendinosus

Answer 15

Limb supporting weight: extends hip, stifle and hock joints

Limb not supporting weight: flexes stifle, retracts and adducts limb

Question 16

Innervation of semitendinosus

Answer 16

Caudal gluteal and sciatic nerves

Question 17

Origin of semimembranosus

Answer 17

Vertebral head: first caudal vertebra; sacrosciatic ligament

Pelvic head: ventromedial aspect of ischial tuber

Question 18

Insertion of semimembranosus

Answer 18

Medial condyles of femur and tibia

Question 19

Action of semimembranosus

Answer 19

Limb supporting weight: extends hip and stifle joints

Limb not supporting weight: retracts, adducts and rotates limb inward

Question 20

Innervation of semimembranosus

Answer 20

Caudal gluteal and sciatic nerve.

Question 21

Origin of vastus lateralis

Answer 21

Proximolateral on femur

Question 22

Insertion of vastus lateralis

Answer 22

Via the intermediate patellar on the tibial tuberosity

Question 23

Action of vastus lateralis

Answer 23

Flexes hip joint (rectus fem.); extends and stabilizes stifle

Question 24

Innervation of vastus lateralis

Answer 24

Femoral nerve

Question 25

Origin of gastrocnemius

Answer 25

With medial and lateral heads from corresponding supracondylar tuberosities of the femur

Question 26

Insertion of gastrocnemius

Answer 26

As part of common calcanean tendon on calcanean tuber

Question 27

Action of gastrocnemius

Answer 27

Extends hock; flexes stifle

Question 28

Innervation of gastrocnemius

Answer 28

Tibial nerve