Nerve Supply To The Pelvic Limb

Question 1

The lumbosacral plexus consists of the intermingling of the ventral spinal branches of spinal nerves ___-___

Answer 1

L4-S4

Question 2

Femoral spinal nerve origin

Answer 2

L4-L6

Question 3

Obturator spinal nerve origin

Answer 3

L4-L6

Question 4

Sciatic spinal nerve origin

Answer 4

L6-S2

Question 5

Pudendal spinal nerve origin

Answer 5

S2-S4

Question 6

Muscle protecting the femoral nerve;

Another muscle lies above the femoral nerve

Answer 6

Iliopsoas

Sartorius

Question 7

Nerve that runs through the vascular lacuna wth branches that run with the lateral circumflex femoral artery

Answer 7

Femoral

Question 8

The femoral nerve supplies mostly

Answer 8

Muscle, but has some cutaneous function

Question 9

Branch of the femoral nerve that supplies the cutaneous area of the media portion of the pelvic limb; also supplies the medial crus and dorsomedial skin of the tarsus and metatarsus

Answer 9

Saphenous

Question 10

Nerve that supplies the flexors of the hip and extensors of the stifle

Answer 10

Femoral

Question 11

Clinical signs of femoral nerve damage

Answer 11

Collapse of the stifle

Inability to support weight due to paralysis of quadriceps femoris

Analgesia over medial crural region

Question 12

Nerve that exits the pelvis through the Obturator foramen

Answer 12

Obturator

Question 13

Nerve that supplies the adductors of the hip

Answer 13

Obturator

Question 14

Nerve that does not provide any skin innervation, but does inner ate part of the hip and stifle joints

Answer 14

Obturator

Question 15

Nerve that emerges though the greater ischiatic foramen

Answer 15

Cranial gluteal

Question 16

Nerve that innervates the abductors of the hip (all heads of the gluteal muscle)

Answer 16

Cranial gluteal

Question 17

Nerve that has no skin innervation, but does innervates part of the hip

Answer 17

Cranial gluteal

Question 18

Clinical signs of Obturator nerve damage

Answer 18

Non-compensated abduction of the limb

In cow, bilateral damage (calving paralysis) will cause the animal to go down in a split

Question 19

Clinical signs of cranial gluteal nerve damage

Answer 19

Little alteration in gait

Partial atrophy of middle gluteal

Question 20

Nerve that runs over the sacrosciatic ligament

Answer 20

Caudal gluteal

Question 21

Nerve that innervates partial supply to the extensors of the hip and abductors of the hip

Answer 21

Caudal gluteal

Question 22

Nerve with no skin or joint innervation

Answer 22

Caudal gluteal

Question 23

Clinical signs of caudal gluteal nerve damage

Answer 23

Little alteration in gait

Question 24

Nerve that emerges through the greater ischiatic foramen and passes on the ventral surface of the sacrosciatic ligament and descends into the thigh medial to the biceps femoris muscle

Answer 24

Sciatic

Question 25

Nerve that supplies most hindlimb muscles directly or via branches. Flexors of the stifle, extensors and flexors of the tarsus, extensors and flexors of the digit

Answer 25

Sciatic

Question 26

Nerve that innervates almost all of the skin from the stifle to the hoof; supplies part of the hip joint and all joints dismally via branches

Answer 26

Sciatic

Question 27

Clinical signs of sciatic nerve damage

Answer 27

Poor limb flexion Extended stifle Extended tarsus Overflexed fetlock with wight borne on dorsal surface of digit Analgesia of lateral limb and entire foot

Question 28

Caudal division of the sciatic nerve that passes through the gastrocnemius

Answer 28

Tibial

Question 29

Nerve that comes off of the tibial before the tibial passes between the heads of the gastrocnemius

Answer 29

Caudal cutaneous sural

Question 30

Division of the tibial nerve proximal to the tarsus

Answer 30

Medial and lateral plantar nerves

Question 31

Nerve that innervates the flexors of the stifle, extensors of the tarsus, and flexors of the digit

Answer 31

Tibial

Question 32

Nerve that supplies the skin caudolateral from stifle to hoof Also supplies the stifle joint, plantar aspects of the fetlock, pastern and coffin joints, and the navicular bursa

Answer 32

Tibial

Question 33

Clinical signs of damage to the tibial nerve

Answer 33

Hypermetric gait with dropped hock (hyperflexion of the tarsus at rest) Inability to flex digit Analgesia of plantar metatarsus and digit

Question 34

Cranial division of the sciatic nerve

Answer 34

Common peroneal

Question 35

Nerve that gives off the lateral cutaneous sural nerve

Answer 35

Common peroneal

Question 36

Division of the common peroneal nerve

Answer 36

Superficial and deep peroneal nerves

Question 37

Divisions of the deep peroneal nerve

Answer 37

Medial dorsal metatarsal nerve Lateral dorsal metatarsal nerve

Question 38

Nerve that innervates the flexors of the tarsus and extensors of the digit

Answer 38

Common peroneal nerve

Question 39

Nerve that supplies the skin over the dorsolateral surface of the crus and pets, tarsal joints, fetlock joint, and dorsal portions of pastern and coffin joints

Answer 39

Common peroneal

Question 40

Clinical signs of damage to the common peroneal nerve

Answer 40

Inability to flex the tarsus Inability to extend the digit Hyperextension of the hock Hyperflexion of the digit Fetlock knuckles during walking Dragged toe when walking Analgesia of dorsolateral pes from the tarsus to the fetlock

Question 41

Stringhalt

Answer 41

Hypermetric, hyperflexion of the leg

Question 42

Tarsal joint innervation

Answer 42

Deep peroneal nerve

Question 43

Fetlock joint innervation

Answer 43

Medial dorsometatarsal nerve Lateral dorsometatarsal nerve Medial plantar nerve Lateral plantar nerve

Question 44

Plantar pastern and coffin joint innervation

Answer 44

Medial plantar digital nerve Lateral plantar digital nerve

Question 45

Dorsal pastern and coffin joint innervation

Answer 45

Medial dorsal digital nerve Lateral dorsal digital nerve

Question 46

The most important region of the equine pelvic limb

Answer 46

Distal limb