Muscles Flashcards
Stifle flexors
Biceps femoris
Semitendinosus
Semimembranous
Gastrocnemius
Stifle extensors
Quadriceps (4 heads) Rectus femoris Vastus lateralis Vastus medialis Vastus intermedius
Sartorius
Gastrocnemius
Origin..
Insertion..
Action..
O-caudal aspect of femur (2 tendons of origin)
I- calcaneus (via common calcanean tendon)
A- stifle flexor
Hock extensor
Quadriceps muscle
Origin..
Insertion..
Action..
Rectus femoris- o- ilium
Vastus lateralis- o-lateral femur
Vastus medialis- o- medial femur
Vastus intermedius- o-intermediate femur
I- tibial tuberosity via patellar ligament
A- stifle extensors
Sartorius
Origin..
Insertion..
Action..
2 heads
Cranial part
O- crest of ilium
I- patella with Rectus femoris
Caudal part
O- cranial ventral iliac spine of ilium
I- tibial tuberosity
A- stifle extensors
Hock flexors
Cranial tibial muscle Peroneus long Peroneus Brevis Long digital extensor Lateral digital extensor
Hock extensors
Biceps femoris Semitendinosis Gracilis Gastrocnemius Superficial digital flexor
Cranial tibial muscle
Origin..
Insertion..
Action..
O- lateral tibia
I- metatarsal bones
A- hock flexors
Peroneus longus
Origin..
Insertion..
Action..
O- lateral tibia and fibula
I- plantar aspect tarsus
A- hock flexor
Peroneus brevis
Origin..
Insertion..
Action..
O- tibia and fibula
I- 5th metatarsal bone
A- hock flexor
Long digital extensor
Origin..
Insertion..
Action..
O- extensor fossa (tendon of origin: incorporated into stifle joint capsule)
I- all digits
A- hock flexor
Digital extensor
Lateral digital extensor
Origin..
Insertion..
Action..
O- lateral aspect tibia
I- fuses with lateral branches of long digital extensors
A- hock flexor
Digital extensor
Superficial digital flexor
Origin..
Insertion..
Action..
O- lateral popliteal fossa femur I- calcaneus I- branches to all digits A- hock extensor Digital flexor
Deep digital flexor
Origin..
Insertion..
Action..
O- tibia 2 heads 1. Lateral 2. Medial Merge then divide into 4 branches I- all digits A- digital flexor