Anatomy I- Canine Pelvic Limb Muscle Actions

Question 1

Sartorius (Cranial Head)

Answer 1

Extends Stifle, flexes hip

Question 2

Sartorius (Caudal Head)

Answer 2

Flexes Stifle, Flexes hip

Question 3

Superficial Gluteal

Answer 3

Extends hip, Abducts the limb

Question 4

Middle Gluteal

Answer 4

Extends hip, Abducts the limb

Question 5

Deep Gluteal

Answer 5

Extends hip, Abducts the limb

Question 6

Tensor Fascia Latae

Answer 6

Flexes hip, Extends Stifle, Abducts the limb

Question 7

Semitendinosus

Answer 7

Extends hip, Flexes Stifle, Extends Tarsus

Question 8

Semimembranosus (Cranial Head)

Answer 8

Extends Stifle

Question 9

Semimembranosus (Caudal Head)

Answer 9

Flexes Stifle

Question 10

Biceps Femoris

Answer 10

Extends hip, flexes and extends stifle, extends tarsus, abducts limb.

Question 11

Piriformis

Answer 11

Extends hip, flexes stifle

Question 12

Internal Obturator

Answer 12

Laterally rotates femur

Question 13

Caudal Crural Abductor

Answer 13

abducts limb, flexes stifle ( helps with leg lifting for urination)

Question 14

Gemelli

Answer 14

Laterally rotates femur

Question 15

Quadratus Femoris

Answer 15

Extends hip, Laterally rotates femur

Question 16

Quadriceps Femoris ( Which are the 4 parts)

Answer 16

Vastus Lateralis (most lateral aspect), Vastus Medialis (most Medial aspect), Vastus Intermedius (closest to femur (bottom of bun), Rectus Femoris (in between medialis and lateralis ( hot dog in bun))

Question 17

Quadriceps Femoris

Answer 17

Extends Stifle (Rectus Femoris flexes hip as well)

Question 18

External Obturator

Answer 18

Laterally Rotates Femur

Question 19

Pectineus

Answer 19

Adducts limb

Question 20

Adductors

Answer 20

Two heads: Magnus et longus and Magnus et brevis - Both adducts limb, extends hip

Question 21

Cranial Tibial

Answer 21

flexes tarsus, supinates pes

Question 22

Fibularis longus

Answer 22

flexes tarsus, pronates pes

Question 23

Long digital Extensor

Answer 23

extends digits, flexes tarsus

Question 24

Gastrocenemius

Answer 24

extends tarsus, flexes stifle ( medial and lateral heads) same action both heads.

Question 25

Deep digital flexor

Answer 25

lateral head and medial head ( medial head much smaller than lateral head ) Flexes digits, extends tarsus

Question 26

Superficial Digital flexor

Answer 26

flexes stifle, extends tarsus, flexes digits

Question 27

Popliteus

Answer 27

pronation

Question 28

Gracilis

Answer 28

adducts limb, flexes stifle, extends tarsus