Muscles of the TORSO

Question 1

What is the Origin of the Pec Major?

Answer 1

Sternum, clavicle, ribs

Question 2

What is the insertion and action of the Pec Major?

Answer 2

I- Proximal anterior humerus A-Shoulder flexion, medial rotation and horizontal adduction

Question 3

What is the Origin and insertion of the Pec Minor?

Answer 3

O- Ribs 3, 4, 5 I- coracoid process of SCAPULA

Question 4

What is the Action of the Pec Minor?

Answer 4

Protracts Scapula

Question 5

What is The O I and A of the Deltoid

Answer 5

O- Clavicle and spine of scap I- deltoid tuberosity on humerus, A- Abduction of shoulder (prime mover) flexion and extension

Question 6

What is the Origin of the latissimus dorsi?

Answer 6

Thoracic, Lumbar and Sacral spine

Question 7

What is the Insertion of the Lats?

Answer 7

Proximal anterior humerus

Question 8

What is the O I & A of Teres Major?

Answer 8

O- inferior border of SCAPULA I- proximal anterior humerus A- extends, interanlly roates and adducts shoulder

Question 9

What is the action of the erector spinae?

Answer 9

Extension of the spine

Question 10

What is the Origin of the Rhomboids major and minor?

Answer 10

Spinous processes on thoracic spine

Question 11

What is the insertion and action of rhomboids major and minor?

Answer 11

I- medial border of Scapula A- Retraction of the Scapula

Question 12

What is the Origin of the upper traps?

Answer 12

Occipital bones and cervical spine

Question 13

What is the insertion of the upper traps?

Answer 13

acromion and spine of scapula and 1/3 of clavicle

Question 14

What is the Action of the upper traps?

Answer 14

Elevate Scapula and extend cervical spine

Question 15

What is the O I & A of middle traps?

Answer 15

O- upper and middle Cx I- Acromion and spine of scapula A- retraction of scapula

Question 16

What is the O I & A of the lower traps?

Answer 16

O- Lower Thoracic spine I- Acromion and spine of scapula

Question 17

What is the Action of the Quadratus Lumborum?

Answer 17

Lateral flexion of the spine. Extension of the spine.

Question 18

What is the Origin and Insertion of the QL?

Answer 18

O- Iliac crest and Lumbar spine I- Lowest rib and Lumbar spine

Question 19

What is the deepest of the Abdominal Muscles and what is there Action?

Answer 19

Transverse Abdominus. Compression of abdomen and stabilisation of the spine

Question 20

What is the Origin and Insertion of the Transverse Abdonimus?

Answer 20

O- Inguinal ligament, lumbar fascia and cartilage of last 6 ribs I- Linea Alba

Question 21

What is the O I & A of the rectus abdominus?

Answer 21

O- Pubis I- xiphoid process A- spine flexion

Question 22

What is the Action of the Internal and external obliques?

Answer 22

Lateral Flexion and rotation of the spine

Question 23

What is the O and I of the external obliques?

Answer 23

O- Outer surface of lower ribs I- lumbar spine

Question 24

What is the O and I of the internal obliques?

Answer 24

O- lumbar fascia and iliac crest I- lowest ribs, linea alba and pubis

Question 25

What is the Origin of the levator scap?

Answer 25

C1-C4

Question 26

what is the Insertion of the levator scap?

Answer 26

medial border and spine of SCAPULA

Question 27

What is the Action of the SCM?

Answer 27

flexion of neck, side bend, rotates to opposite side

Question 28

What is the Action of the scalenes?

Answer 28

Elevation of ribs. Flex, side bend and rotate neck

Question 29

What is the Origin and Insertion of the scalenes?

Answer 29

O- cervical spine I- first 2 ribs

Question 30

What are the actions of upper, middle and lower traps?

Answer 30

Upper- elevation of scapula/shoulder, Middle- retract scapula, lower- depress scapula