Unit 1: Osteology of Thoracic Limb

Question 1

Clavicle Bone

Answer 1

Well-developed in some animals, stabilize shoulder joint
Dogs/Cats: can be visible on a radiograph (may see on dog)

Question 2

Lateral View of Scapula

Answer 2

1. Infraspinous fossa
2. Supraspinous fossa
3. Scapular spine
4. Hamate process
5. Scapular notch
6. Glenoid cavity
7. Supraglenoid tubercle

Question 3

Medial view of Scapula

Answer 3

1. Serrated face
2. Subscapular fossa
3. Neck of scapula
4. Coracoid process
5. Glenoid cavity

Question 4

Difference in Feline Scapula

Answer 4

1. Suprahamte process
2. Hamate process

Question 5

Humerus dog right/caudal view

Answer 5

1. Greater tubercle
2. Lesser tubercle
3. Head humerus
4. Tuberosity for M. teres minor
5. Deltoid tuberosity
6. Olecranon fossa
7. Medial epicondyle
8. Lateral epicondylar crest (lateral supracondylar crest)
9. Lateral epicondyle
10. Condyle

Question 6

Humerus dog left/cranial view

Answer 6

1. Greater tubercle
2. Lesser tubercle
3. Intertubercular groove
4. Crest of greater tubercle
5. Tuberosity for M. teres minor
6. Tricipital line
7. Tuberosity for M. teres major
8. Deltoid tuberosity
9. Body humerus
10. Brachial groove
11. Radial fossa
12. Lateral epicondylar crest (lateral supracondylar crest)
13. supratrochlear foramen
14. Lateral epicondyle
15. Capitulum
16. Trochlea
17. Medial epicondyle

Question 7

Ulna dog left/lateral view

Answer 7

1. Olecranon
2. Anconeal process
3. Trochlear notch
4. Coronoid process
5. Radial notch
6. Body ulna
7. Styloid process

Question 8

Ulna dog right/medial view

Answer 8

3. Trochlear notch
4. Ulnar tuberosity
5. Interosseous border
6. Articular circumference
7. Styloid process

Question 9

Ulna dog left/cranial

Answer 9

1. Olecranon
2. Anneal process
3. Trochlear notch
4. Coronoid process
5. Radial notch
6. Ulnar tuberosity
7. Interosseous border
8. Body ulna
9. Articular circumference
10. Styloid process

Question 10

Ulna dog right/caudal

Answer 10

1. Olecranon
2. Coronoid process
3. Body ulna
4. Styloid process

Question 11

Radius dog left/cranial

Answer 11

1. Fovea
2. Head radius
3. Neck
4. Medial border
5. Body
6. Lateral border
7. Groove for M. abductor pollicis longus
8. Styloid process
9. Groove for M. extensor carpi radialis

Question 12

Radius dog right/caudal

Answer 12

11.Articular circumference
3. Head
12. Radial tuberosity
13. Nutrient foramen
4. Medial border
5. Body
6. Lateral border
7. Groove for M. extensor digitalis communis
10. Styloid process
15. Carpal articular surface
14. Ulnar notch

Question 13

Manus dog (carpal bones)

Answer 13

A. Radius
B. Ulna
C. Radial carpal bone
D. Ulnar carpal bone
E. Accessory carpal bone
G. Carpal bone 1
H. Carpal bone 2
I. Carpal bone 3
J. Carpal bone 4

Question 14

Manus dog (metacarpal and digits)

Answer 14

K. Metacarpal bone 1
L. Metacarpal bone 2
M. Metacarpal bone 3
N. Metacarpal bone 4
O. Metacarpal bone 5
P. Proximal sesamoid bones (palmar side)
Q. Dorsal sesamoid bones
R. Proximal phalanges
S. Middle phalanges
T. Distal phalanges
U. Ungual processes