Anatomy of the Thoracic Limb

Question 1

Synsarcosis

Answer 1

connection of the scapula to the body via muscles

Question 2

Muscles on the Lateral Scapula and Shoulder

Answer 2

Deltoideus
Infraspinatus
Teres minor
Supraspinatus

Question 3

Muscles on the Medial Scapula and Shoulder

Answer 3

Subscapularis
Teres major
Coracobrachialis

Question 4

Muscles on the Caudal Upper Brachium

Answer 4

Tensor fasciae antebrachii
Triceps brachii
Anconeus

Question 5

Muscles on the Cranial Upper Brachium

Answer 5

Biceps brachii

Brachialis

Question 6

Muscles on the Cranial and Lateral Antebrachium

Answer 6

Extensor carpi radialis
Common digital extensor
Ulnaris lateralis
Lateral digital extensor
Supinator
Abductor digiti I longus (abductor pollicis longus)

Question 7

Muscles on the Caudal and Medial Antebrachium

Answer 7

Pronator teres
Flexor carpi radialis
Superficial digital flexor
Flexor carpi lunaris
Deep digital flexor
Pronator quadratus

Question 8

Extensor muscles of the shoulder

Answer 8

Infraspinatus
Supraspinatus
Subscapularis
Coracobrachialis

Question 9

Flexor muscles of the shoulder

Answer 9

Deltoideus
Teres minor
Teres major

Question 10

Extensor muscles of the elbow

Answer 10

Tensor fasciae antebrachii
Triceps brachii
Anconeus

Question 11

Flexor muscles of the elbow

Answer 11

Biceps brachii
Brachialis
Supinator
Pronator teres

Question 12

Extensor muscles of the carpus and digits

Answer 12

Extensor carpi radialis
Common digital extensor
Lateral digital extensor
Abductor digiti I longus (abductor pollicis longus)

Question 13

Flexors of the carpus and digits

Answer 13

Ulnaris lateralis
Flexor carpi radialis
Superficial digital flexor
Deep digital flexor
Flexor carpi ulnaris

Question 14

Pronators of the antebrachium

Answer 14

Pronator teres

Pronator quadratus

Question 15

Muscles in stance phase: stabilize limb to body wall

Answer 15

Serratus ventralis
Superficial and deep pectoral
Trapezius
Rhomboideus

Question 16

Muscles in stance phase: stabilize the shoulder

Answer 16

Supraspinatus
Infraspinatus
Subscapularis
Teres minor
Trees major
Coracobrachialis
Biceps brachii
Triceps brachii (long head)

Question 17

Muscles in stance phase: extend the elbow

Answer 17

Tensor fasciae antebrachii
Triceps brachii
Anconeus

Question 18

Muscles in stance phase: flex carpus and digits

Answer 18

Ulnaris lateralis
Flexor carpi lunaris
Flexor carpi radialis
Superficial digital flexor
Deep digital flexor

Question 19

Dorsal border of the carpal canal (canine)

Answer 19

Palmar carpal ligament

Question 20

Lateral border of the carpal canal (canine)

Answer 20

Accessory carpal bone

Question 21

Palmar border of the carpal canal (canine)

Answer 21

Flexor retinaculum

Question 22

Function of the dorsal elastic ligament and the DDF relating to claws

Answer 22

Dorsal elastic ligament (claw retraction), this is a hyperextension of the distal interphalangeal joint
DDF (claw protraction)

Question 23

Additional muscle in the pectoral muscle group found in Equine and Bovine

Answer 23

Subclavius

Question 24

Muscle that rounds the point of the shoulder in equine

Answer 24

Subclavius

Question 25

Joints of the carpus

Answer 25

Antebrachiocarpal Middle carpal Carpometacarpal

Question 26

In the equine, what joints in the carpus communicate?

Answer 26

Middle carpal and carpometacarpal.

Question 27

What are the three germinal tissues in the equine hoof?

Answer 27

``` Perioplic corium Coronary corium Laminar corium -dermal lamina -epidermal lamina ```

Question 28

In a pony with a flexural limb deformity, this ligament can be cut to allow relaxation of the carpal joint.

Answer 28

Distal check ligament

Question 29

Why can an infection of a synovial structure be so dangerous?

Answer 29

Infection is harder to treat | Motion and weight bearing affected