Lab 2 - Short List Quiz Preparation

Question 1

Middle gluteal m. (Gluteal region)

Action?
Innervation?
Origin & Insertion?

Answer 1

Action: Hip extensor, Hip abduction, Medial rotation of thigh
Innervation: Gluteal n.
Origin & Insertion: Wing of Ilium → Greater Trochanter

Question 2

Biceps femoris m. (Caudal femoral region)

Action?
Innervation?
Origin & Insertion?

Swing phase of gait

Answer 2

Action: Hip extension, stifle flexion, stifle extension, and hock extension
Innervation: Sciatic n.
Origin & Insertion: Sacrotuberous ligament and Ischiatic Tuberosity → via fascia lata and fascia of the leg to the patella, patella ligament, tibial crest/body, and tuber calcanei

Question 3

(Cranial femoral region)
Quadriceps femoris m.
Rectus femoris m.

Action?
Innervation?
Origin & Insertion?

Answer 3

Action: Hip flexion, Stifle extension
Innervation: Femoral n.
Origin & Insertion: Ilium cranial to acetabulum → Tibial tuberosity via patella and patellar ligament

Question 4

Adductor m. (Medial Femoral Region)

Action?
Innervation?
Origin & Insertion?

Answer 4

Action: Hip adduction, Hip extension
Innervation: Obturator n.
Origin & Insertion: Pelvic symphysis, Ventral Pubis and Ischium → Caudal Femur

Question 5

Iliopsoas m. (Deep cranial region)

Action?
Innervation?
Origin & Insertion?

Answer 5

Action: Hip and lumbar column flexion
Innervation: Femoral n. & Lumbar spinal n.
Origin & Insertion: Lumbar vertebrae (m. psoas major) & Ventral ilium (m. iliacus) → Lesser trochanter

Question 6

Cranial Tibial M. (Cranial/Lateral Leg Region)

Action?
Innervation?
Origin & Insertion?

Answer 6

Action: Hock flexor, outward rotation of pes
Innervation: Fibula n.
Origin & Insertion: Tibial tuberosity and cranial border of the tibia bone → plantar aspect of proximal metatarsals I and II

Question 7

Long Digital Extensor M. (Cranial/Lateral Leg Region)

Action?
Innervation?
Origin & Insertion?

Answer 7

Action: Digital extensor, hock flexor, pes outward rotation
Innervation: Fibula n.
Origin & Insertion: Extensor fossa of the distolateral femur → Extensor process of the distal phalanx of digits 2 through 4

Question 8

(Cranial femoral region)
Quadriceps femoris m.
Vastus lateralis m.

Action?
Innervation?
Origin & Insertion?

Answer 8

Action: Extension of the stifle
Innervation: Femoral n.
Origin & Insertion: Craniolateral aspect of proximal femur → tibial tuberosity via patella and patellar ligament

Question 9

(Cranial femoral region)
Quadriceps femoris m.
Vastus medialius m.

Action?
Innervation?
Origin & Insertion?

Answer 9

Action: Extension of stifle
Innervation: Femoral n.
**Origin & Insertion: ** Craniomedial aspect of proximal femur → Tibial tuberosity via patella and patellar ligament

Question 10

(Caudal Leg)
Gastrocnemius m.

Answer 10

**Action: **Hock extension, Stifle flexion
**Innervation: **Tibial n.
Origin & Insertion: Medial and lateral supracondylar tuberosities of the femur bone → tuber calcanei

Question 11

(Caudal Leg)
Deep digital flexor m.

Answer 11

Action: Digit flexion
Innervation: Tibial n.
Origin & Insertion: Caudal aspect of proximal tibia and fibula bone → plantar aspect distal phalanx, digits II - V