Muscle Actions - Anterior

Question 1

Deltoids

Area -

Origin -

Insertion -

Actions -

Answer 1

Area - Shoulder

Origin - clavicle, scapula

Insertion - Humerus

Actions - Abduction, flexion and Extension of shoulder

Question 2

Pectorallis Major

Area -

Origin -

Insertion -

Actions -

Answer 2

Area - Chest

Origin - Clavicle, Sternum

Insertion - Humerus

Actions - flexion, horizontal flexion, adduction and medial rotation of shoulder

Question 3

Biceps Brachii

Area -

Origin -

Insertion -

Actions -

Answer 3

Area - Front of upper arm

Origin - Scapula

Insertion - Radius

Actions - flexion of elbow, supination of forearm, flexion if shoulder

Question 4

Diaphragm

Area -

Origin -

Insertion -

Actions -

Answer 4

Area - beneath rib cage

Origin - sternum, costal cartilage, lumbar vertebrae

Insertion - central tendon or diaphragm

Actions - flattens during inspiration, relaxes during expiration

Question 5

Intercostals

Area -

Origin -

Insertion -

Actions -

Answer 5

Area - between ribs

Origin - borders of ribs

Insertion - borders of ribs

Actions - elevate and depress ribs, aids in breathing

Question 6

Rectus Abdominus

Area -

Origin -

Insertion -

Actions -

Answer 6

Area - centre of abdomen

Origin - pubis

Insertion - sternum

Actions - flexion of spine

Question 7

Transverus abdominis

Area -

Origin -

Insertion -

Actions -

Answer 7

Area - abdomen behind rectus abdominis

Origin - iliac crest, lumbar fascia

Insertion - sternum, Pubis, Linea Alba

Actions - compress abdomen

Question 8

Internal Obliques

Area -

Origin -

Insertion -

Actions -

Answer 8

Area - sides of abdomen

Origin - iliac crest, lumbar fascia

Insertion - costal cartilage, linea alba

Actions - rotation and Lateral flexion of spine, compresses abdomen

Question 9

External Obliques

Area -

Origin -

Insertion -

Actions -

Answer 9

Area - sides of abdomen anterior to internal obliques

Origin - lower ribs

Insertion - iliac crest, linea Alba

Actions - rotation and Lateral flexion of spine, compresses abdomen

Question 10

Hip Flexors

Area -

Origin -

Insertion -

Actions -

Answer 10

Area - through pelvis to front of thigh

Origin - ilium, lumbar vertebrae

Insertion - femur

Actions - flexion of hip

Question 11

Adductors

Area -

Origin -

Insertion -

Actions -

Answer 11

Area - inside of thigh

Origin - Pubis, ischium

Insertion - femur

Actions - adduction, flexion and medial rotation of hip

Question 12

Abductors

Area -

Origin -

Insertion -

Actions -

Answer 12

Area - outside of thigh

Origin - illium

Insertion - femur, tibia

Actions - flexion, abduction and medial rotation of hip

Question 13

Quadriceps

Area -

Origin -

Insertion -

Actions -

Answer 13

Area - front of thigh

Origin - illium, femur

Insertion - tibia

Actions - Extension of knee, flexion of hip

Question 14

Tibialis anterior

Area -

Origin -

Insertion -

Actions -

Answer 14

Area - front of lower leg

Origin - tibia

Insertion - tarsal, metatarsal

Actions - dorsiflexion and inversion of foot