Lecture 14 2/21/24

Question 1

Where do the common digital extensor m. tendons insert in the bovine distal limb?

Answer 1

medial tendon: abaxial side of P3 of 3rd digit
lateral tendon: inserts on extensor processes of P3 of 3rd and 4th digits (splits in two)

Question 2

Where does the lateral digital extensor m. tendon insert in the bovine distal limb?

Answer 2

abaxial side of P3 of 4th digit

Question 3

What are the characteristics of the interosseous muscle in the bovine?

Answer 3

-one interosseous muscle on each limb
-all are tendinous
-divides into three branches that all attach to proximal sesamoid bones

Question 4

What are the three branches of the bovine interosseous m.?

Answer 4

-central
-lateral
-medial

Question 5

What are the characteristics of the central branch of the interosseous m.?

Answer 5

-passes between trochleas of cannon bone to dorsal surface of digits before dividing in two
-attach to lateral digital extensor and medial part of common/long digital extensor mm.

Question 6

What are the characteristics of the lateral and medial branches of the interosseous m.?

Answer 6

-pass abaxially to the dorsal surface of the digits
-attach to lateral digital extensor and medial part of common/long digital extensor mm.

Question 7

Where do the flexor muscles insert in the bovine limb?

Answer 7

SDF: palmar/plantar P2
DDF: palmar/plantar P3

Question 8

Where is the palmar annular lig. found in the bovine?

Answer 8

palmar side of fetlock joint

Question 9

Where is the digital annular lig. found in the bovine?

Answer 9

palmar side of P1

Question 10

Where is the proximal interdigital lig. found in the bovine?

Answer 10

spanning the interdigital space between proximal phalanges

Question 11

Where is the distal interdigital lig. found in the bovine?

Answer 11

from proximal abaxial surface of P2 to distal sesamoid bone of opposite digit

Question 12

What is important about the distal interdigital lig.?

Answer 12

it must be left intact if a claw is removed

Question 13

What is the function of the intersesamoidean lig.?

Answer 13

connects to all four proximal sesamoid bones and converts them into a functional unit

Question 14

Where is the oblique sesamoidean lig. found in the bovine?

Answer 14

from each abaxial proximal sesamoid bone to palmar P1 of the same digit

Question 15

How many sets of cruciate ligaments does the bovine have per limb?

Answer 15

two sets, one for each digit

Question 16

Where is the interdigital phalangosesamoidean lig. found in the bovine?

Answer 16

from distal surface of proximal sesamoid bone to proximal palmar P1 of opposite digit

Question 17

What is important about the straight sesamoidean lig. in ruminants?

Answer 17

it is absent in ruminants