Plate 20: Forearm and forefoot muscles

Question 1

Pronator mm. 旋前肌

Answer 1

rotate the forearm so that the palmar surface of the forepaw is directed laterad and thus to the ground (pronation)

Question 2

Supinator mm. 旋後肌

Answer 2

rotate the forearm so that the palmar surface of the forepaw is directed medially (supination: only in dogs)

Question 3

Radial and carpal extensor m. 橈腕伸肌

Answer 3

• extend the carpal joint
• flex the elbow joint

Question 4

Common digital extensor m. 常見的指伸肌

Answer 4

extend the digits

Question 5

Lateral ulnar m. 尺外側肌

Answer 5

extend the carpal joint with weak lateral rotation

Question 6

Long abductor m. of first digit 第一個趾的長外展肌

Answer 6

• abduct and flex the first digit
• medial deviation of the forepaw

Question 7

Ulnar head of ulnar carpal flexor m. 尺腕屈肌尺骨頭
Humeral head of ulnar carpal flexor muscle 尺腕屈肌肱骨頭

Answer 7

flex and abduct the forepaw