Origins + insertions 2

Question 1

Vastus lateralis

Answer 1

A: Extends knee

O: Anterior inferior border of greater trochanter
Gluteal tuberosity
Upper half of linea aspera

I: Lateral border of patella, petal tendon to tibial tuberosity

Question 2

Vastus Medialis

Answer 2

A: Extends knee

O: Linea aspera and supercondyloid ridge

I: Medial border of patella and petals tendon to tibial tuberosity

Question 3

Gastrocnemius

Answer 3

A: Plantarflex ankle, flexes knee

O: Medial head = Posterior medial femoral condyle
Lateral head = posterior lateral femoral condyle

I: Calcaneus via Achilles tendon

Question 4

Soleus

Answer 4

A: Plantarflex ankle

O: proximal 2/3 of posterior Fibula and Tibia

I: Achilles tendon, Calcaneus

Question 5

Tibialis Anterior

Answer 5

A: Dorsiflex ankle, invert foot

O: Upper 2/3 of lateral tibia and condyle

I: Plantar surface of medial cuneiform and 1st metatarsal

Question 6

Peroneus Longus

Answer 6

A: Everts foot, plantarflexes ankle

O: Head and lateral upper 2/3 of fibula

I: Medial cuneiform and 1st metatarsal

Question 7

Sternocleidmastoid

Answer 7

A: Neck flex, rotation

O: Manubrium of sternum and Medial 1/3 clavicle

I: Mastoid process, temporal bone

Question 8

Serratus Anterior

Answer 8

A: Protracts Scapula and rotates scapula laterally

O: Ribs 1-9 lateral of chest

I: anterior medial border of scapula and inferior angle

Question 9

Pectoralis Minor

Answer 9

A: Protracts and laterally rotates scapula

O: Anterior 3-5 ribs

I: Caracoid process of scapula

Question 10

External Obliques

Answer 10

A: Rotation of trunk, stability of trunk, ribs and pelvis

O: Outer boarder of lower 8 ribs and costal cartilage

I: Iliac crest, linia alba, pubic symphysis and inguinal ligament

Question 11

Ilio- tibial band

Answer 11

A: Stabilises the knee in extension and acts as a flexor, abductor and medial rotator of thigh

O: Tendons of Tensor Fascia Lata and ASIS

I: Lateral epicondyle of Tibia

Question 12

Iliopsoas/Psoas Major

Answer 12

A: Hip flexion, external rotation and stabilisation

O: Anterior surface and lower borders of transverse processes T12-L5 vertebra

I: Lesser trochanter or the femur via Iliopsoas tendon

Question 13

Tensor Fascia Lata (TFL)

Answer 13

A: Adducts and flexes hip, internally rotes hip

O: Anterior aspect of Iliac crest and ASIS

I: Upper Ilio Tibial band

Question 14

Adductor Longus

Answer 14

A: Adduction and medial rotation of thigh

O: Anterior pubis bles crest

I: Medial third of Lina Aspera