Equine Pelvic Limb Nerves

Question 1

The superficial peroneal n. innervates __________.

Answer 1

The superficial peroneal n. innervates cutaneous to lateral aspect of crus to fetlock; lateral digital extensor m.

Question 2

Which nerve can be palpated here?

(this is the back end of a horse by the way… come on)

Answer 2

tibial nerve

Question 3

Damage to the __________ nerve results in “knuckling over”

Answer 3

common peroneal n.

Question 4

The deep peroneal n. innervates __________.

Answer 4

The deep peroneal n. innervates cutaneous distribution to pes.

Question 5

The **lateral dorsal metatarsal n. **innervates __________.

Answer 5

The lateral dorsal metatarsal n. innervates cutaneous distribution to dorsal metatarsus.

Question 6

Which nerve can be found running alongside the great metatarsal a.?

Answer 6

lateral dorsal metatarsal n.

Question 7

The lateral dorsal digital n. innervates __________.

Answer 7

The lateral dorsal digital n. provides cutaneous innervation to the dorsal digit.

Question 8

The **caudal cutaneous sural n. **innervates __________.

Answer 8

The caudal cutaneous sural n. innervates cutaneous distribution to caudal crus.

Question 9

The **medial plantar n. **innervates __________.

Answer 9

The medial plantar n. provides cutaneous innervation to medioplantar metatarsal.

Question 10

The **medial (plantar) digital n. **innervates __________.

Answer 10

The medial (plantar) digital n. provides cutaneous innervation to medial digit.

Question 11

The **dorsal branches of the digital nn. **innervate __________.

Answer 11

The dorsal branches of the digital nn. provide cutaneous innervation to the dorsal digit.

Question 12

The communicating branch from the tibial nerve connects which two nerves?

Answer 12

medial and lateral plantar nerves

Question 13

The **lateral plantar n. **innervates __________.

Answer 13

The **lateral plantar n. **innervates interosseus m & cutaneous distribution to lateroplantar metatarsus.

Question 14

The **lateral (plantar) digital n. **innervates __________.

Answer 14

The lateral (plantar) digital n. provides cutaneous distribution to the lateral digit

Question 15

Which branch of the tibial nerve is responsible for innervation to the interosseus m?

Answer 15

lateral plantar n.

Question 16

Which branch of the tibial nerve is responsible for cutaneous innervation to the caudal crus?

Answer 16

caudal cutaneous sural n.

Question 17

Which branch of the tibial nerve is responsible for cutaneous innervation to the medioplantar metatarsal?

Answer 17

medial plantar n.

Question 18

Which branch of the sciatic nerve is responsible for cutaneous innervation to the lateral leg?

Answer 18

common peroneal n.

Question 19

A **palmar digital nerve block **is at the level of the ________ joint or below

Answer 19

A palmar digital nerve block is at the level of the pastern joint or below.

It blocks the palmar/plantar & distal parts of the hoof, PIII, termination of the DDF, and most of the coffin joint

Question 20

Are peroneal & tibial nerve blocks proximal or distal to the hock?

Answer 20

proximal to the hock

Question 21

**common peroneal n. **and tibial n. are both branches of the ________ nerve

Answer 21

sciatic n.

Question 22

If an animal suffers obturator nerve paralysis, what action becomes impossible?

Answer 22

adduction of the limb

Question 23

If an animal comes into your clinic and it is unable to flex the hock or extend the digits (animal is knuckling over), which nerve is most likely to be affected?

Answer 23

peroneal nerve

Question 24

pronounced flexion of the hock & overextension of the digits is indicative of ____________ nerve paralysis

Answer 24

tibial

Question 25

Which nerve provides sensation to the perianal area?

Answer 25

pudendal n.