Week 13: OIA Axial

Question 1

Origin of Serratus Posterior Superior

Answer 1

The spinous process of C7-T3

Question 2

Insertion of Serratus Posterior Superior

Answer 2

Posterior Surface of Rib 2-5

Question 3

Action of Serratus Posterior Superior

Answer 3

Elevate ribs during inhalation

Question 4

Origin of Serratus Posterior Inferior

Answer 4

Spinous Process of T12-L3

Question 5

Insertion of Serratus Posterior Inferior

Answer 5

Post surface of rib 9-12

Question 6

Action of Serratus Posterior Inferior

Answer 6

Depress the ribs during exhalation

Question 7

Origin of Transverse abdominis

Answer 7

Lateral inguinal ligament, iliac crest, thoracolumbar fascia, internal lower 6 ribs

Makes line starting at back with thoracolumbar fascia to iliac crest to LIL then up to the lower 6 ribs

Question 8

Insertion of Transverse abdominis

Answer 8

Abdominal aponeurosis

Question 9

Action of Transverse abdominis

Answer 9

compress abdomen

Question 10

Origin of Rectus Abdominis

Answer 10

Pubis crest, pubis symphysis

Question 11

Insertion of Rectus abdominis

Answer 11

The cartilage of 5-7 rib and xiphoid process

Question 12

Action of Rectus abdominis

Answer 12

Flex vertebra, tilt pelvis posteriorly

Question 13

Origin of internal abdominal obliques

Answer 13

Lateral inguinal ligament, iliac crest, thoracolumbar aponeurosis

Question 14

Insertion of internal abdominal obliques

Answer 14

Internal lower 3 ribs, abdominal aponeurosis

Question 15

Action of internal abdominal obliques

Answer 15

Unilat: lat flex vertebrae same, rotate vertebra same
Bilat: flex vertebra, compress abdomen

Question 16

Origin of external abdominal obliques

Answer 16

External surface of rib 5-12

Question 17

Insertion of external abdominal obliques

Answer 17

Anterior iliac crest, abdominal aponeurosis

Question 18

Action of External Abdominal Obliques

Answer 18

Unilat: lat flex vertebra same, rotate vertebra opposite
Bilat: flex vertebra, compress abdomen

Question 19

Origin of Quadratus Lumborum

Answer 19

Posterior iliac crest

Question 20

Insertion of Quadratus Lumborum

Answer 20

Last rib of Transverse Process of L1-L4

Question 21

Action of Quadratus Lumborum

Answer 21

Unilat: elevate pelvis, lateral flex vertebra to same, extend vertebra
Bilat: fix the last rib

Question 22

Origin of External Intercostals

Answer 22

Inferior Border rib above

Question 23

Insertion of external Intercostals

Answer 23

Superior border rib below

Question 24

Action of external intercostals

Answer 24

Lift ribs, assist with inhalation

Question 25

Origin of Internal Intercostals

Answer 25

Inferior Border rib above

Question 26

Insertion of Internal Intercostals

Answer 26

Superior Border rib below

Question 27

Action of Internal Intercostals

Answer 27

Lift ribs, assist with exhalation

Question 28

Origin of Pyramidalis

Answer 28

Pubic symphysis

Question 29

Insertion of Pyramidalis

Answer 29

Linea alba

Question 30

Action of Pyramidalis

Answer 30

Tense Linea Alba

Question 31

Origin of Posterior Scalene

Answer 31

TVP of C6-C7

Question 32

Insertion of Posterior Scalene

Answer 32

Second rib

Question 33

Action of Posterior Scalene

Answer 33

Unilat: Lat flexion of head/neck to same, rotate opposite Bilat: elevate rib (inhale), flexion of neck

Question 34

Origin of Middle Scalene

Answer 34

TVP C2-C7

Question 35

Insertion of Middle Scalene

Answer 35

First rib

Question 36

Action of Middle Scalene

Answer 36

Unilat: Lat flexion of head/neck to same, rotate opposite Bilat: elevate rib (inhale), flexion of neck

Question 37

Origin of Anterior Scalene

Answer 37

TVP C3-C6

Question 38

Insertion of Anterior Scalene

Answer 38

First rib

Question 39

Action of Anterior Scalene

Answer 39

Unilat: Lat flexion of head/neck to same, rotate opposite Bilat: elevate rib (inhale), flexion of neck

Question 40

Origin of Splenius Capitis

Answer 40

Inferior 1/2 ligamentum Nuchea SP of C7-T4

Question 41

Insertion of Splenius Capitis

Answer 41

Mastoid process, Lateral superior nuchal line

Question 42

Action of Splenius Capitis

Answer 42

Unilat: rotate same, Lateral flexion same. Bilat: extend head and neck

Question 43

Origin of Splenius cervicis

Answer 43

SP of T3-T6

Question 44

Insertion of Splenius cervicis

Answer 44

TVP of C1-C3

Question 45

Action of Splenius cervicis

Answer 45

Unilat: rotate same, Lateral flexion same. Bilat: extend head and neck

Question 46

Origin of Diaphragm

Answer 46

The inner surface of lower 6 ribs Upper 2-3 lumbar vertebra Inner portion of xiphoid process

Question 47

Insertion of Diaphragm

Answer 47

Central Tendon

Question 48

Action of Diaphragm

Answer 48

Draw down diaphragm, increase thoracic volume during inhalation