Muscles

Question 1

Biceps brachii origin

Answer 1

Supraglenoid tubercle

Question 2

Biceps brachii insertion

Answer 2

Ulnar and radial tuberosities

Question 3

Biceps brachii innervation

Answer 3

Musculocutaneous

Question 4

Biceps brachii action

Answer 4

Flex elbow and extend shoulder

Question 5

Triceps brachii origin

Answer 5

Long: caudal border of scapula
Lateral: tricipital line of humerus
Medial: crest of lesser tubercle
Accessory: neck of humerus

Question 6

Triceps brachii insertion

Answer 6

Olecranon tuber

Question 7

Triceps brachii innervation

Answer 7

Radial

Question 8

Triceps brachii action

Answer 8

Long: flex shoulder and extend elbow

Lat/Med/Acc: extend elbow

Question 9

Deltoideus origin

Answer 9

Spinous Head: spine of scapula

Acromial Head: acromial process

Question 10

Deltoideus insertion

Answer 10

Deltoid tuberosity

Question 11

Deltoideus Nerve

Answer 11

Axillary

Question 12

Deltoideus action

Answer 12

Flex the shoulder

Question 13

Pectorals origin

Answer 13

Superficial (descending and transverse): first two sternebrae
Deep (ascending): ventral sternum

Question 14

Pectorals insertion

Answer 14

Superficial: crest of the greater tubercle
Deep: lesser tubercle and crest of the greater tubercle

Question 15

Pectorals Nerve

Answer 15

Superficial: cranial pectoral
Deep: caudal pectoral

Question 16

Pectorals action

Answer 16

Superficial: adduct Limb, prevent abduction when weight bearing
Deep: when supporting weight- pull trunk cranially and extend the shoulder, when not supporting weight- draw Limb caudally and flex shoulder, adduct limb

Question 17

Quadriceps femoris origin

Answer 17

Rectus femoris: ilium, cranial to the acetabulum
Vastus intermedius: lateral side of the proximal end of femur
Vastus lateralis: proximal lateral part of caudal rough surface of femur
Vastus medialis: medial side of proximal end of the cranial surface and the proximal medial part of caudal rough surface of the femur

Question 18

Quadriceps femoris insertion

Answer 18

Tibial tuberosity

Question 19

Quadriceps femoris nerve

Answer 19

Femoral

Question 20

Quadriceps femoris action

Answer 20

Rectus femoris: flexes the hip and extends the stifle

Vastus intermedius/lateralis/medialis: extends stifle

Question 21

Sartorius origin

Answer 21

Cranial part: crest of the ilium and thoracolumbar fascia

Caudal part: cranial ventral iliac spine and the adjacent ventral border of the ileum

Question 22

Sartorius insertion

Answer 22

Cranial: patella
Caudal: cranial border of the tibia

Question 23

Sartorius nerve

Answer 23

Femoral

Question 24

Sartorius action

Answer 24

Cranial: flex hip and extend stifle
Caudal: flexes hip and flexes stifle

Question 25

Biceps femoris origin

Answer 25

Sacrotuberous ligament and ischiatic tuberosity

Question 26

Biceps femoris insertion

Answer 26

Via fascia lata and the crural fascia to the patella, patellar ligament and the cranial border of the tibia, via the crural fascia to the subcutaneous part of the tibial body, the tuber calcanei

Question 27

Biceps femoris nerve

Answer 27

Sciatic

Question 28

Biceps femoris action

Answer 28

Extend the hip, stifle and hock, caudal part flexes the stifle

Question 29

Gastrocnemius origin

Answer 29

Lateral and medial supracondylar tuberosities of the femur

Question 30

Gastrocnemius insertion

Answer 30

Proximal dorsal surface of the tuber calcanei

Question 31

Gastrocnemius nerve

Answer 31

Tibial

Question 32

Gastrocnemius action

Answer 32

Flexes stifle and extends the tarsus

Question 33

Cranial tibial origin

Answer 33

Extensor groove and the adjacent articular margin of the tibia, the lateral edge of the cranial tibial border

Question 34

Cranial tibial insertion

Answer 34

Plantar surface of the base of metatarsals 1 and 2

Question 35

Cranial tibial nerve

Answer 35

Fibular

Question 36

Cranial tibial action

Answer 36

Flex the tarsocrural joint and rotates the paw laterally so that the plantar surface faces medially

Question 37

Iliopsoas origin

Answer 37

Iliacus: cranioventral ilium Psoas: lumbar vertebrae

Question 38

Iliopsoas insertion

Answer 38

Lesser trochanter of the femur

Question 39

Iliopsoas nerve

Answer 39

Ventral branches of the lumbar spinal nerves, femoral nerve

Question 40

Iliopsoas action

Answer 40

Flexes the hip

Question 41

Gracilis origin

Answer 41

Pelvic symphysis by means of the symphysial tendon

Question 42

Gracilis insertion

Answer 42

Cranial border of the tibia and the tuber calcanei

Question 43

Gracilis nerve

Answer 43

Obturator

Question 44

Gracilis action

Answer 44

Adducts the limb, flexes the stifle, extends the hip and hock

Question 45

Pectineus origin

Answer 45

Iliopubic eminence and the pubic tubercle via the prepubic tendon

Question 46

Pectineus insertion

Answer 46

Distal end of the medial aspect of caudal rough face of the femur

Question 47

Pectineus nerve

Answer 47

Obturator

Question 48

Pectineus action

Answer 48

Adducts the limb