Assignment 27 Equine

Question 1

Which nerve provides motor innervation to the quadriceps femoris? What nerve does it give off?

Answer 1

femoral nerve gives off saphenous n.

Question 2

What nerve provides sensory innervation to the medial limb?

Answer 2

saphenous n.

Question 3

What nerve provides motor to sartorius?

Answer 3

saphenous n.

Question 4

What does the obturator nerve supply?

Answer 4

motor to external obturator, pectineus, gracilis, and adductor

Question 5

What does the caudal gluteal nerve supply?

Answer 5

superficial gluteal, vertebral heads of biceps femoris, semitendinosus and semimembranosus

Question 6

What does the cranial gluteal nerve supply?

Answer 6

gluteal muscles and tensor fascia latae

Question 7

What are the divisions of the sciatic nerve?

Answer 7

tibial and common peroneal

Question 8

What does the sciatic nerve innervate?

Answer 8

semimembranosus, and pelvic heads of the semitendinosus, and biceps femoris

Question 9

The tibial nerve is a terminal division of what nerve?

Answer 9

sciatic

Question 10

What nerve supplies sensory to the distal limb?

Answer 10

tibial n and common peroneal

Question 11

What nerve provides motor to flexors of the hock and extensors of the digit?

Answer 11

common peroneal n.

Question 12

The craniolateral muscles of the crus are ______ of the hock and _____ of the fetlock and digit.

Answer 12

flexors; extensors

Question 13

What is the most cranial muscle in the crus of the horse?

Answer 13

long digital extensor

Question 14

What muscle joins the tendon of the long digital extensor?

Answer 14

lateral digital extensor

Question 15

What muscle does peroneus tertius arise from?

Answer 15

long digital extensor

Question 16

The caudal muscles of the crus generally are ____ of the stifle, _____ of the hock, and _____ of the fetlock digit.

Answer 16

flexors, extensors, flexors

Question 17

What makes up the calcanean tendon?

Answer 17

gastroc and soleus

Question 18

What are the tarsal tendons?

Answer 18

biceps femoris, semitendinosus

Question 19

What makes up the common calcanean tendon?

Answer 19

gastroc, biceps femoris, semitendinosus, SDF, soleus, gracilis

Question 20

Damage to the cranial or caudal portion of the reciprocal apparatus results in poor prognosis?

Answer 20

caudal

Question 21

What makes up the reciprocal apparatus?

Answer 21

cranial- peroneus tertius

caudal- SDF and gastroc fibrous band

Question 22

The reciprocal apparatus results in opposing actins of the hock and stifle. True or false?

Answer 22

False- when one flexes or extends, so does the other

Question 23

What retinacula are associated with the hock?

Answer 23

proximal, middle, and distal extensor retinacula

lateral extensor retinaculum

flexor retinaculum

Question 24

There are proximal and distal check ligaments in the thoracic and pelvic limbs of the horse. True or false?

Answer 24

False- There are proximal and distal check ligaments in the forelimb.

In the hindlimb, there are only accessory ligaments of the DDF.

Question 25

What acts as the proximal check ligament in the rear limb of the horse?

Answer 25

Attachment of the SDF to the tuber calcanei