Lab 2 - Region, Muscles, Action, Innervation

Question 1

Which muscles belong to the Cranial Crural Region, and what are their actions & innervation?

Answer 1

Muscles in this group:
- Cranial Tibial m.: Hock Flexor (Fibular n.)
- Long Digital Extensor m.: Hock Flexor, Digit Extensor (Fibular n.)
- Fibularis Longus m.: Hock Flexor (Fibular n.)
- Lateral Digital Extensor m.: Hock Flexor, Digit Extensor (Fibular n.)

Question 2

Which muscles belong to the Caudal Crural Region, and what are their actions & innervation?

Answer 2

Muscles in this group:
- Gastrocnemius m.: Hock Extensor, Stifle Flexor (Tibial n.)
- Deep Digital Flexor m.: Hock Extensor, Digital Flexor (Tibial n.)
- Superficial Digital Flexor m.: Hock Extensor, Digital Flexor (Tibial n.)

Question 3

Which muscles belong to the Deep Caudal Crural Region, and what are their actions & innervation?

Answer 3

Muscles in this group:
- Popliteus m.: Crus Medial Rotator, Stifle Flexor (Tibial n.)

Question 4

Which muscles belong to the Gluteal Region, and what are their actions & innervation?

Answer 4

Muscles in this group:
- Tensor Fasciae Latae m.: Hip Flexor, Limb Abductor, Tenses Fascia Lata (Gluteal n.)
- Superficial Gluteal m.: Hip Extensor (Gluteal n.)
- Middle Gluteal m.: Hip Extensor (Gluteal n.)
- Deep Gluteal m.: Hip Extensor (Gluteal n.)

Question 5

Which muscles belong to the Caudal Femoral Region, and what are their actions & innervation?

Answer 5

Muscles in this group:
- Biceps Femoris m.: Hip Extensor, Stifle Flexor, Stifle Extensor, Hock Extensor (Sciatic n.)
- Semitendinosus m.: Hip Extensor, Stifle Flexor, Hock Extensor (Sciatic n.)
- Semimembranosus m.: Hip Extensor, Stifle Flexor (Sciatic n.)

Question 6

Which muscles belong to the Deep Hip Region, and what are their actions & innervation?

Answer 6

Muscles in this group:
- Gemelli m.: Lateral Hip Rotator (Sciatic n.)
- Internal Obturator m.: Lateral Hip Rotator (Sciatic n.)
- Quadratus Femoris m.: Lateral Hip Rotator (Sciatic n.)

Question 7

Which muscles belong to the Cranial Femoral Region, and what are their actions & innervation?

Answer 7

Muscles in this group:
- Quadriceps Femoris m.: Stifle Extension (Femoral n.)
- Vastus Lateralis m.: Stifle Extension (Femoral n.)
- Vastus Medialis m.: Stifle Extension (Femoral n.)
- Vastus Intermedius m.: Stifle Extension (Femoral n.)
- Cranial Sartorius m.: Stifle Extension (Femoral n.)
- Rectus Femoris m.: Hip Flexor, Stifle Extension (Femoral n.)

Question 8

Which muscles belong to the Deep Cranial Femoral Region, and what are their actions & innervation?

Answer 8

Muscles in this group:
- Iliopsoas m.: Hip Flexor (Femoral n., Lumbar Spinal n.)

Question 9

Which muscles belong to the Medial Femoral Region, and what are their actions & innervation?

Answer 9

Muscles in this group:
- Pectineus m.: Adduct Hip (Obturator n.)
- Adductor m.: Adduct Hip (Obturator n.)
- Gracilis m.: Adduct Hip (Obturator n.)
- External Obturator m.: Outward Hip Rotator (Obturator n.)

Question 10

What is the action & innervation of Cranial Tibial m.?

Answer 10

Action(s): Hock Flexor
Innervation: Fibular n.

Question 11

What is the action & innervation of Long Digital Extensor m.?

Answer 11

Action(s): Hock Flexor, Digit Extensor
Innervation: Fibular n.

Question 12

What is the action & innervation of Fibularis Longus m.?

Answer 12

Action(s): Hock Flexor
Innervation: Fibular n.

Question 13

What is the action & innervation of Lateral Digital Extensor m.?

Answer 13

Action(s): Hock Flexor, Digit Extensor
Innervation: Fibular n.

Question 14

What is the action & innervation of Gastrocnemius m.?

Answer 14

Action(s): Hock Extensor, Stifle Flexor
Innervation: Tibial n.

Question 15

What is the action & innervation of Deep Digital Flexor m.?

Answer 15

Action(s): Hock Extensor, Digital Flexor
Innervation: Tibial n.

Question 16

What is the action & innervation of Superficial Digital Flexor m.?

Answer 16

Action(s): Hock Extensor, Digital Flexor
Innervation: Tibial n.

Question 17

What is the action & innervation of Popliteus m.?

Answer 17

Action(s): Crus Medial Rotator, Stifle Flexor
Innervation: Tibial n.

Question 18

What is the action & innervation of Tensor Fasciae Latae m.?

Answer 18

Action(s): Hip Flexor, Limb Abductor, Tenses Fascia Lata
Innervation: Gluteal n.

Question 19

What is the action & innervation of Superficial Gluteal m.?

Answer 19

Action(s): Hip Extensor
Innervation: Gluteal n.

Question 20

What is the action & innervation of Middle Gluteal m.?

Answer 20

Action(s): Hip Extensor
Innervation: Gluteal n.

Question 21

What is the action & innervation of Deep Gluteal m.?

Answer 21

Action(s): Hip Extensor
Innervation: Gluteal n.

Question 22

What is the action & innervation of Biceps Femoris m.?

Answer 22

Action(s): Hip Extensor, Stifle Flexor, Stifle Extensor, Hock Extensor
Innervation: Sciatic n.

Question 23

What is the action & innervation of Semitendinosus m.?

Answer 23

Action(s): Hip Extensor, Stifle Flexor, Hock Extensor
Innervation: Sciatic n.

Question 24

What is the action & innervation of Semimembranosus m.?

Answer 24

Action(s): Hip Extensor, Stifle Flexor
Innervation: Sciatic n.

Question 25

What is the action & innervation of **Gemelli m.**?

Answer 25

**Action(s):** Lateral Hip Rotator **Innervation:** Sciatic n.

Question 26

What is the action & innervation of **Internal Obturator m.**?

Answer 26

**Action(s):** Lateral Hip Rotator **Innervation:** Sciatic n.

Question 27

What is the action & innervation of **Quadratus Femoris m.**?

Answer 27

**Action(s):** Lateral Hip Rotator **Innervation:** Sciatic n.

Question 28

What is the action & innervation of **Quadriceps Femoris m.**?

Answer 28

**Action(s):** Stifle Extension **Innervation:** Femoral n.

Question 29

What is the action & innervation of **Vastus Lateralis m.**?

Answer 29

**Action(s):** Stifle Extension **Innervation:** Femoral n.

Question 30

What is the action & innervation of **Vastus Medialis m.**?

Answer 30

**Action(s):** Stifle Extension **Innervation:** Femoral n.

Question 31

What is the action & innervation of **Vastus Intermedius m.**?

Answer 31

**Action(s):** Stifle Extension **Innervation:** Femoral n.

Question 32

What is the action & innervation of **Cranial Sartorius m.**?

Answer 32

**Action(s):** Stifle Extension **Innervation:** Femoral n.

Question 33

What is the action & innervation of **Rectus Femoris m.**?

Answer 33

**Action(s):** Hip Flexor, Stifle Extension **Innervation:** Femoral n.

Question 34

What is the action & innervation of **Iliopsoas m.**?

Answer 34

**Action(s):** Hip Flexor **Innervation:** Femoral n., Lumbar Spinal n.

Question 35

What is the action & innervation of **Pectineus m.**?

Answer 35

**Action(s):** Adduct Hip **Innervation:** Obturator n.

Question 36

What is the action & innervation of **Adductor m.**?

Answer 36

**Action(s):** Adduct Hip **Innervation:** Obturator n.

Question 37

What is the action & innervation of **Gracilis m.**?

Answer 37

**Action(s):** Adduct Hip **Innervation:** Obturator n.

Question 38

What is the action & innervation of **External Obturator m.**?

Answer 38

**Action(s):** Outward Hip Rotator **Innervation:** Obturator n.

Question 39

Which muscle is **innervated by Fibular n.** and performs **Hock Flexor**?

Answer 39

**Muscle:** Cranial Tibial m.

Question 40

Which muscle is **innervated by Fibular n.** and performs **Hock Flexor, Digit Extensor**?

Answer 40

**Muscle:** Long Digital Extensor m.

Question 41

Which muscle is **innervated by Fibular n.** and performs **Hock Flexor**?

Answer 41

**Muscle:** Fibularis Longus m.

Question 42

Which muscle is **innervated by Fibular n.** and performs **Hock Flexor, Digit Extensor**?

Answer 42

**Muscle:** Lateral Digital Extensor m.

Question 43

Which muscle is **innervated by Tibial n.** and performs **Hock Extensor, Stifle Flexor**?

Answer 43

**Muscle:** Gastrocnemius m.

Question 44

Which muscle is **innervated by Tibial n.** and performs **Hock Extensor, Digital Flexor**?

Answer 44

**Muscle:** Deep Digital Flexor m.

Question 45

Which muscle is **innervated by Tibial n.** and performs **Hock Extensor, Digital Flexor**?

Answer 45

**Muscle:** Superficial Digital Flexor m.

Question 46

Which muscle is **innervated by Tibial n.** and performs **Crus Medial Rotator, Stifle Flexor**?

Answer 46

**Muscle:** Popliteus m.

Question 47

Which muscle is **innervated by Gluteal n.** and performs **Hip Flexor, Limb Abductor, Tenses Fascia Lata**?

Answer 47

**Muscle:** Tensor Fasciae Latae m.

Question 48

Which muscle is **innervated by Gluteal n.** and performs **Hip Extensor**?

Answer 48

**Muscle:** Superficial Gluteal m.

Question 49

Which muscle is **innervated by Gluteal n.** and performs **Hip Extensor**?

Answer 49

**Muscle:** Middle Gluteal m.

Question 50

Which muscle is **innervated by Gluteal n.** and performs **Hip Extensor**?

Answer 50

**Muscle:** Deep Gluteal m.

Question 51

Which muscle is **innervated by Sciatic n.** and performs **Hip Extensor, Stifle Flexor, Stifle Extensor, Hock Extensor**?

Answer 51

**Muscle:** Biceps Femoris m.

Question 52

Which muscle is **innervated by Sciatic n.** and performs **Hip Extensor, Stifle Flexor, Hock Extensor**?

Answer 52

**Muscle:** Semitendinosus m.

Question 53

Which muscle is **innervated by Sciatic n.** and performs **Hip Extensor, Stifle Flexor**?

Answer 53

**Muscle:** Semimembranosus m.

Question 54

Which muscle is **innervated by Sciatic n.** and performs **Lateral Hip Rotator**?

Answer 54

**Muscle:** Gemelli m.

Question 55

Which muscle is **innervated by Sciatic n.** and performs **Lateral Hip Rotator**?

Answer 55

**Muscle:** Internal Obturator m.

Question 56

Which muscle is **innervated by Sciatic n.** and performs **Lateral Hip Rotator**?

Answer 56

**Muscle:** Quadratus Femoris m.

Question 57

Which muscle is **innervated by Femoral n.** and performs **Stifle Extension**?

Answer 57

**Muscle:** Quadriceps Femoris m.

Question 58

Which muscle is **innervated by Femoral n.** and performs **Stifle Extension**?

Answer 58

**Muscle:** Vastus Lateralis m.

Question 59

Which muscle is **innervated by Femoral n.** and performs **Stifle Extension**?

Answer 59

**Muscle:** Vastus Medialis m.

Question 60

Which muscle is **innervated by Femoral n.** and performs **Stifle Extension**?

Answer 60

**Muscle:** Vastus Intermedius m.

Question 61

Which muscle is **innervated by Femoral n.** and performs **Stifle Extension**?

Answer 61

**Muscle:** Cranial Sartorius m.

Question 62

Which muscle is **innervated by Femoral n.** and performs **Hip Flexor, Stifle Extension**?

Answer 62

**Muscle:** Rectus Femoris m.

Question 63

Which muscle is **innervated by Femoral n., Lumbar Spinal n.** and performs **Hip Flexor**?

Answer 63

**Muscle:** Iliopsoas m.

Question 64

Which muscle is **innervated by Obturator n.** and performs **Adduct Hip**?

Answer 64

**Muscle:** Pectineus m.

Question 65

Which muscle is **innervated by Obturator n.** and performs **Adduct Hip**?

Answer 65

**Muscle:** Adductor m.

Question 66

Which muscle is **innervated by Obturator n.** and performs **Adduct Hip**?

Answer 66

**Muscle:** Gracilis m.

Question 67

Which muscle is **innervated by Obturator n.** and performs **Outward Hip Rotator**?

Answer 67

**Muscle:** External Obturator m.

Question 68

What is the action & innervation of **Caudal Sartorius m.**?

Answer 68

**Action(s):** Stifle Flexor **Innervation:** Femoral n.

Question 69

Which muscle is **innervated by Femoral n.** and performs **Stifle Flexion**?

Answer 69

**Muscle:** Caudal Sartorius m.

Question 70

What is the action & innervation of **Caudal Sartorius m.**?

Answer 70

**Action(s):** Stifle Flexor **Innervation:** Femoral n.

Question 71

Which muscle is **innervated by Femoral n.** and performs **Stifle Flexion**?

Answer 71

**Muscle:** Caudal Sartorius m.