Muscles of the leg (caudal and craniolateral) Flashcards Preview

Anatomy Midterm > Muscles of the leg (caudal and craniolateral) > Flashcards

Flashcards in Muscles of the leg (caudal and craniolateral) Deck (17)
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1

deep crural fascia

the medial and lateral femoral fasciae blend over the stifle and continue distally in the leg as this

2

Crural extensor retinaculum

deep crural fascia that thickens to form a oblique band binding down the tendons of the long digital extensor and cranial tibial muscles

3

Tarsal Extensor Retinaculum

fibrous loop that attaches to the calcaneus and wraps around the tendon of the long digital extensor

4

Cranial Tibial Muscle
Origin
Insertion
Action
Innervation

Origin: the extensor groove and adjacent articular margin of the tibia, and lateral edge of the cranial tibia border

Insertion: plantar surface of the base of metatarsals I and II

Action: flex the tarsocrural joint and rotate the paw laterally

Innervation: Fibular Nerve

5

Long digital Extensor
Origin
Insertion
Action
Innervation

Origin: extenser fossa of the femur

Insertion: extensor process of the distal phalanges of digits 2-5

Action: extend the digital joints and flex the tarsal joints

Innervation: Fibular Nerve

6

The Fibularis/ Peroneus longus
Action
Innervation

Action:
- flex the tarsal joints
- rotate the paw medially

Innervation: Fibular nerve

7

Gastrocnemius m.
Origin
Insertion
Action
Innervation

Lateral and Medial Head

Origin: medial and lateral supracondylar tuberosities of the femur

Insertion: the proximal dorsal surface of the tuber calcanei

Action: extend the tarsal joints and flex the stifle joint

Innervation: Tibial Nerve

8

Superficial digital flexor m.
Origin
Insertion
Action
Innervation

Origin: lateral supracondylar tuberosity of the femur

Insertion: tuber calcanei and base of the middle phalanges of digits 2-5

Action:
- flex the first two digital joints of the 4 digits
- flex the stifle joint
- extend the tarsal joints

Innervation: Tibial Nerve

9

Deep digital flexor m.
3 heads and read pg 66

made of the lateral and medial digital flexor
Action: flex the digits and extend the tarsal joints
Innervation: tibial nerve

10

The popliteus m.
Action
Innervation

Action: to rotate the leg medially

Innervation: tibial nerve

11

The interosseous muscles
Action
Innervation

Action: flex the digits and extend the tarsal joints
Innervation: Tibial Nerve

12

The short digital extensor muscle (aka - extensor bravis m.)
Action:
Innervation

Action: (same as long digital extensor) extend the digital joints and flex the tarsal joints

Innervation: Fibular Nerve

13

Extends digits and flexes the tarsus?

Flexes the digits and extends the tarsus?

extensor bravis and long digital extensor

interosseous muscle and deep digital flexor

14

thoracocolumbar fascia

deep fascia of the trunk that covers the doral muscles of the lumbar area, pelvis, and tail

15

deep gluteal fascia

covers the muscles of the pelvis

16

lateral and medial femoral fascia

medial - thin
later - fascia lata, - thick - serves as an aponeurotic insertion for thigh muscles

17

crural fascia

femoral fascia on the leg