Thoracic Limb Flashcards Preview

anatomy-horse And Ruminant > Thoracic Limb > Flashcards

Flashcards in Thoracic Limb Deck (27):
1

Identify the major bone in each topographic region
1. Shoulder Region
2. Brachial Region
3. Antebrachial Region
4. Carpal Region
5. Metacarpal/cannon region
6. Digital Region

1. Scapula
2. Humerus
3. Radius and Ulna
4. Carpal Bones
5. Metacarpal 3 (and 2 and 4)
6. Phalanges 1, 2, 3 and Proximal and Distal Sesamoid bones

2

Which skeletal structures are included in the manus?

Carpal bones, metacarpal bones, phalanges, and sesamoid bones

3

Which skeletal strucutres comprise the equine digit?

Proximal and distal sesamoid bones, phalanges 1, 2, and 3

4

Which structures are included in the thoracic girdle?

Scapula

5

Compare the spine of the scapula and scapular cartilage of the equine species with the canine species

equine scapula has cartilage? (anything else to add?)

6

Which is larger; lateral or medial epicondyle of the humerus?

Lateral Epicondyle

7

The lateral epicondyle is the origin for what muscle group?

Extensor muscles

8

The medial epicondyle is the origin for what muscle group?

Flexor muscles

9

What is the intermediate tubercle?

The ridge in the middle of the proximal end of the bone (inside intertubercular groove)

10

The capitulum and the troclea form what of the humerus?

The condyle

11

The olecranon tuberosity is located at what intercostal space?

5th IC

12

Which styloid process is the distal end of the ulna and which one is the distal end of the radius?

lateral- ulna
medial- radius

13

Which tendons are found in the grooves on the distal end of the radius?

lateral groove- common digital extensor (groove for cde)
middle groove- extensor carpi radialis (groove for ecr)
medial groove- extensor carpi obliquus (groove for eco)

14

What are the proximal carpal bones?

Radial Carpal
Intermediate Carpal
Ulnar Carpal
Accessory Carpal

15

What are the distal carpal bones?

Second Carpal
Third Carpal
Fourth Carpal
First carpal (variable and very small)

16

Where is the antebrachiocarpal joint located?

Between the radius and proximal carpal bones

17

Where is the Midcarpal joint?

Between the proximal and distal carpal joints

18

Where is the Carpometacarpal joint?

Between the distal carpal bones and Metacarpal III

19

Which synovial compartments of the carpus intercommunicate?

Midcarpal and Carpometacarpal joints

20

What is the carpal canal?

Passageway on the palmar side of the leg that connects the forearm with the distal end of the leg

21

Which structures form the boundaries of the carpal canal?

flexor retinaculum and carpal bones

22

Which major tendons pass through the carpal canal?

Deep Digital Flexor tendon, Superficial Digital Flexor tendon

23

What is the name of the tendon synovial sheath that passes through the carpal canal?

carpal synovial sheath

24

What are the anatomic and common names for the metacarpal bones?

Metacarpal Bone III- Cannon Bone
Metacarpal Bone II- Medial Splint Bone
Metacarpal Bone IV- Lateral Splint Bone

25

Where are the proximal and distal sesamoid bones located?

proximal- between cannon and P1
distal- between P2 and P3

26

Differentiate between phalanx and phalanges

phalanx-singular
phalanges-plural

27

What are the chestnut and ergot and where are they located?

chestnut-vestige of the carpal pad. located on the antebrachium
ergot- remnant of the metacarpal pad. located on proximal sesamoid bones