Muscle Anatomy - Hindlimb Muscles

Question 1

Where does the deep gluteal originate?

Answer 1

Ilium and ishium

Question 2

Where does the deep gluteal insert?

Answer 2

Trochanter of femur

Question 3

What is the action of the deep gluteal muscle?

Answer 3

Abduct the thigh and rotate it medially

Question 4

What are the three adductor muscles?

Answer 4

Gracillis
Sartorius
Adductor

Question 5

Where does the Gracillis muscle originate?

Answer 5

Tendon that follows ventral surface of pelvis synthesis

Question 6

Where does the Gracillis muscle insert?

Answer 6

Proximal end of tibia on the medial surface
Medial patellar ligament

Question 7

What is the action of the Gracillis muscle?

Answer 7

Adduct the hind limb

Question 8

Where does the Sartorius muscle originate?

Answer 8

In iliac fascia
From the tendon insertion of Psoas minor muscle

Question 9

Where does the Sartorius muscle insert?

Answer 9

Medial patellar ligament
Proximal end of tibia

Question 10

What is the action of the Sartorius muscle?

Answer 10

Adduct hindlimb
Flexes hip

Question 11

What is the origin of the adductor muscle?

Answer 11

Ventral surface of pubis and ishium
Wide tendon of Gracillis

Question 12

Where does the Adductor muscle insert?

Answer 12

Proximal end of tibia

Question 13

What is the action of the adductor?

Answer 13

Adduct hindlimb
Extends hip joint
Rotates femur medially

Question 14

What are the two heads of the Gastrocnemius?

Answer 14

Medial and lateral head

Question 15

Where does the medial and lateral head of the Gastrocnemius?

Answer 15

Medial - medial side of distal femur
Lateral - lateral side or distal femur

Question 16

What is the insertion of the Gastrocnemius muscle?

Answer 16

Tendon ends on the point of hock (calcaneous bone)

Question 17

What is the action of the Gastrocnemius muscle?

Answer 17

Extends hock
Flexes stifle
CANT DO BOTH AT THE SAME TIME

Question 18

Where does the Soleus muscle originate?

Answer 18

Head of fibula

Question 19

Where does the Soleus muscle insert?

Answer 19

Fuses with tendon of Gastrocnemius and inserts at point of hock on calcenous bone?

Question 20

What is the action of the Soleus muscle?

Answer 20

Extends the hock

Question 21

What are the four quadriceps muscles?

Answer 21

Rectus Femoris
Vastus Lateralis
Vastus Medialis
Vastus intermedius

Question 22

Where does the Rectus Femoris originate?

Answer 22

Ilium

Question 23

Where does the Rectus femoris insert?

Answer 23

Patella

Question 24

What is the action of the Rectus Femoris?

Answer 24

Stabilizes the stifle joint
Flexes the hip
Major role in protraction of hindlimb

Question 25

Where does the Vastus Lateralis originate?

Answer 25

Femur spanning from hip joint 3/4 way down

Question 26

Where does the Vastus Lateralis insert?

Answer 26

Patella

Question 27

What is the action of the Vastus Lateralis?

Answer 27

Extending and stabilizing stifle joint
Abduction of limb

Question 28

Where does the Vastus medialis originate?

Answer 28

Femur medial surface

Question 29

Where does the Vastus medialis insert?

Answer 29

Patella

Question 30

What is the action of the Vastus medialis?

Answer 30

Extends stifle joint

Question 31

Where does the Vastus intermedius originate?

Answer 31

Cranial surface of femur

Question 32

Where does the Vastus intermedius insert?

Answer 32

Patella

Question 33

What is the action of the Vastus intermedius?

Answer 33

Extends stifle
Tenses femoropatellar capsule during extension of joint