Week 2: Functional Anatomy of the Canine Thoracic Limb

Question 1

The thoracic limb is connected to the body via

Answer 1

extrinsic muscles (synsarcosis)

Question 2

Two phase of locomotion

Answer 2

• Stance phase

- Swing phase

Question 3

Stance phase

Answer 3

Time the foot contacts the ground

• Braking
• propulsion
• weight bearing

Question 4

Swing phase

Answer 4

time limb is propelled through the air

Question 5

What is the major extensor of the elbow

Answer 5

triceps brachii

Question 6

____% of the weight of the animals is transferred to the thoracic limb during the stance phase

Answer 6

60

Question 7

The weight of the head, neck, and cranial aspect of the trunk is transferred to the thoracic limb via

Answer 7

serratus ventralis

Pectoral mm

Question 8

Intrinsic muscles of the thoracic limb

Answer 8

Muscles within the limb itself; both attachments of the muscle will be to bones of the thoracic limb

Question 9

The tendon of the deep digital flexor muscle is within

Answer 9

the carpal canal

Question 10

Boundaries of the carpal canal

Answer 10

doral border - palmar carpal ligament
lateral border - accessory carpal bone
palmar border - flexor retinaculum

Question 11

Knuckling over of carpus

Answer 11

• Animal is having trouble extending the carpus
• Extensors of the carpus must be affected
• Extensor muscles of the carpus are supplied by the radial nerve

Question 12

Rigid extension of the elbow

Answer 12

-Overstimulation of the triceps brachii muscle must be occurring (localized tatnus)