caudal crus muscles

Question 1

name the caudal crus muscles

Answer 1

gastrocnemius
superficial digital flexor
deep digital flexor
caudal tibial
popliteus

Question 2

innervation of the caudal crus muscles

Answer 2

tibial nerve

Question 3

origin of the gastrocnemius

Answer 3

2 heads which arise from the epicondyles of the femur

Question 4

what do both heads of the gastrocnemius muscles contain

Answer 4

sesamoid bone - fabellae

Question 5

action of the gastrocnemius

Answer 5

extension of tarsus
flexion of stifle

Question 6

origin of superficial digital flexor

Answer 6

popliteal surface of the femur

Question 7

insertion of the superficial digital flexor

Answer 7

via the calcanean tuberosity on the middle phalanges of digits ii to v

Question 8

action of the superficial digital flexor

Answer 8

flexes stifle
extends tarsus
flexes digits

Question 9

origin of deep digital flexor

Answer 9

two heads
larger lateral = flexor hallucis longus = arises from proximal tibia
smaller medial head = flexor digitorum longus = arises from the proximal tibia and fibula

Question 10

action of the deep digital flexor

Answer 10

flex digits and extend tarsus

Question 11

insertion of the deep digital flexor

Answer 11

tendon of the lateral head runs over the sustentaculum tali, the tendon of the medial head runs over the medial malleolus.
the tendons unite for a short length before dividing to insert on distal phalanges of digits ii to v.

Question 12

origin of the popliteus

Answer 12

lateral condyle of the femur by way of a strong tendon which contains the popliteal sesamoid bone.

Question 13

insertion of the popliteus

Answer 13

medial proximal third of the tibia

Question 14

action of the popliteus

Answer 14

inward rotation and flexion of the stifle

Question 15

origin of the caudal tibial

Answer 15

proximal end of the fibula

Question 16

insertion of the caudal tibial

Answer 16

medial tarsus

Question 17

action of the caudal tibial

Answer 17

tarsal extension