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Undeleted > Lab 11: Hindlimb > Flashcards

Lab 11: Hindlimb Flashcards

0
Q

what is the fascia called overlying the crural region? What are its 3 layers?

A

crural fascia. Superficial, middle, and deep layers of the crural fascia

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1
Q

crural region

A

region from the stifle to the tarsus

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2
Q

what aponeuroses is the middle layer of the crural fascia continuous with?

A

aponeuroses of the biceps femoris, semitendinosus, gracilis, and sartorius, which insert on the tuber calcaneus

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3
Q

what muscles does the deep layer of the crural fascia surround?

A

muscles of the crus (lower leg)

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4
Q

between which 2 muscles does the superficial peroneal n. run?

A

long and lateral digital extensors.

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5
Q

from what nerve does the superficial peroneal n. originate?

A

common peroneal n.

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6
Q

what do the peroneal nerves innervate?

A

muscles that flex the hock and extend the digit

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7
Q

Name 3 muscles innervated by tibial n.?

A

gastrocnemius, superficial digital flexor, and deep digital flexor. All of these extend the hock

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8
Q

fx of peroneus tertius

A

serves as a long ligament over joints. Made up of thick band of tendinous tissue

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9
Q

Caudal cutaneous sural nerve is cutaneous branch of which nerve?

A

tibial n.

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10
Q

What does the femoral artery continue as after the caudal femoral a. branches off over the gastrocnemius m.?

A

popliteal a.

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11
Q

Which muscles are visible on the medial side of the crus?

A

deep digital flexor and portion of the tibialis cranialis

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12
Q

Origin and insertion of superficial digital flexor

A

origin: supracondylar fossa of the femur
insertion: tuber calcaneus

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13
Q

What are extensor retinacula?

A

fibrous bands with transverse fibers that bind the tendon of the long digital extensor

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14
Q

2 terminal branches of the popliteal a.

A

cranial and caudal tibial arteries

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15
Q

What supplies the majority of the blood to the digit?** Where is it located and what is its clinical significance?

A

dorsal metatarsal artery. Lies in groove between the lateral splint bone (metatarsal IV) and cannon bone (metatarsal III). Can be easily felt on live animal for the purpose of obtaining a pulse

16
Q

Is tibial n. sensory, motor, or both?

A

Both

17
Q

What 2 arteries anastomose at the “S shaped anastomosis?”

A

saphenous and branch of caudal femoral arteries

18
Q

What 2 nerves does the tibial n. divide into? Where does this split occur?

A

Lateral and medial plantar nn. Occurs proximal or within the flexor canal

19
Q

What is the major innervation to the digit?

A

lateral and medial plantar nerves

20
Q

Origin/Insertion/Action/Nerve Supply: Gracilis m.

A

O: subpelvic tendon
I: medial patellar ligament and medial surface of tibia
A: adduct limb
S: obturator n.

21
Q

OIAS: rectus femoris head of quadriceps femoris

A

O: body of ilium
I: tibial tuberosity
A: flex hip, extend stifle
S: femoral n.

22
Q

OIAS: vastus lateralis head of quadriceps femoris

A

O: lateral surface of femur
I: tibial tuberosity
A: extend stifle joint
S: femoral n.

23
Q

OIAS: vastus medialis head of quadriceps femoris

A

O: medial surface of femur
I: tibial tuberosity
A: extend stifle
S: femoral n.

24
Q

OIAS: vastus intermedius head of quadriceps femoris

A

O: cranial surface of femur
I: tibial tuberosity
A: extend stifle
S: femoral n.

25
Q

OIAS: tibialis cranialis

A

O: lateral condyle of tibia
I: third metatarsal and tarsal bones I and II
A: flex hock
S: deep peroneal n.

26
Q

OIAS: peroneus tertius

A

O: extensor fossa of femur
I: third metatarsal, third tarsal, calcaneus and 4th tarsal bones
A: flex hock, extend stifle
S: sensory branches of deep peroneal n.

27
Q

OIAS: long digital extensor

A

O: extensor fossa of femur
I: extensor process of third phalanx
A: extend stifle and digit, flex the hock
S: deep peroneal n.

28
Q

OIAS: lateral digital extensor

A

O: lateral collateral ligament of stifle joint
I: tendon of insertion of long dig. extensor
A: extend digit, flex hock
S: superficial peroneal n.

29
Q

OIAS: Gastrocnemius m.

A

O: supracondyloid tuberosity of femur
I: calcaneal tuberosity
A: flex stifle, extend hock
S: tibial n.

30
Q

OIAS: superficial digital flexor

A

O: supracondyloid fossa of femur
I: calcaneal tuber, proximal extremity of 2nd phalanx, distal extremity of 1st phalanx
A: flex digit, extend hock, flex stifle
S: tibial n.

31
Q

OIAS: deep digital flexor

A

O: lateral condyle and lateral border of tibia and fibula
I: flexor surface of third phalanx
A: flex digit, extend hock
S: tibial n.

32
Q

OIAS: interosseus (suspensory ligament)

A

O: distal row of tarsal bones, proximal extremity of third metatarsal bone
I: abaxial surface of proximal sesamoids and conjoined tendon of long and lateral digital extensor mm.
A: support the fetlock (prevent overextension)
S: sensory branches of tibial n.

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