Week 5: Muscles of the Pelvic Limb Cont. (Origins, Insertions, Actions)

Question 1

Tendon of the cranial tibial muscle is held down by

Answer 1

The crural extensor retinaculum

Question 2

Cranial tibial origin

Answer 2

Proximal and lateral aspect of the tibia near the extensor groove

Question 3

Cranial tibial insertion

Answer 3

Proximal plantar surface of metatarsals I and II

Question 4

Cranial tibial action (2)

Answer 4

• Flex tarsus

- Rotate paw laterally so plantar surface faces medially

Question 5

Long digital extensor muscle tendon is held down by

Answer 5

• The crural extensor retinaculum

- The tarsal extensor retinaculum which holds it in place on the dorsal surface of the metatarsus

Question 6

Long digital extensor origin

Answer 6

Extensor fossa of the femur

Question 7

Long digital extensor insertion

Answer 7

Extensor processes of distal phalanges of digits 2-5

Question 8

Long digital extensor action (2)

Answer 8

• Extend digits

- Flex tarsus

Question 9

Fibularis longus is also referred to as

Answer 9

The peroneus

Question 10

Fibularis longus origin (2)

Answer 10

• Lateral collateral ligament

- Proximal aspect of tibia and fibula

Question 11

Fibularis longus insertion (2)

Answer 11

• Tarsal bone IV

- Plantar aspect of proximal ends of metatarsals

Question 12

Fibularis longus action (2)

Answer 12

• Flex tarsus

- Pronation

Question 13

Gastrocnemius origin

Answer 13

Medial and lateral supracondylar tuberosities of the femur

Question 14

Gastrocnemius insertion

Answer 14

Tuber calcanei

Question 15

Gastrocnemius action (2)

Answer 15

• Extend tarsus

- Flex stifle

Question 16

Superficial digital flexor tendon forms the main central component of the

Answer 16

Common calcanean tendon

Question 17

What is located between the between the SDF and gastrocnemius?

Answer 17

The intertendinous bursa

Question 18

What is located between the skin and the tendon of the SDF?

Answer 18

Subcutaneous calcanean bursa

Question 19

Superficial digital flexor origin

Answer 19

Lateral supracondylar tuberosity of the femur

Question 20

Superficial digital flexor insertion (2)

Answer 20

• Tuber calcanei

- Plantar aspect of the base of middle phalanx of digits 2-5

Question 21

Superficial digital flexor action (3)

Answer 21

• Flex stifle
• Extend tarsus (hock)
• Flex digits

Question 22

Deep digital flexor heads

Answer 22

• Lateral digital flexor

- Medial digital flexor

Question 23

The tendon of the lateral head of the deep digital flexor passes over ____ and is held down by _______

Answer 23

• Sustentaculum tali

- Flexor retinaculum

Question 24

Deep digital flexor origin

Answer 24

Proximal tibia and fibula and adjacent interosseus membrane between the two

Question 25

Deep digital flexor insertion

Answer 25

Plantar aspect of the base of distal phalanx of digits 1-5

Question 26

Deep digital flexor action (2)

Answer 26

• Flex digits

- Extend tarsus

Question 27

Popliteus has what in its tendon of origin?

Answer 27

Popliteal sesamoid bone

Question 28

Popliteus origin

Answer 28

Lateral condyle of femur

Question 29

Popliteus insertion

Answer 29

Proximal and caudomedial aspect of the tibia

Question 30

Popliteus action

Answer 30

Flex stifle