Muscles of the Back and Neck

Question 1

Intermediate Layer of muscles of the back

Answer 1

Serratus posterior superior
Serratus posterior inferior
Levator costorum* (not palpable)

Question 2

Serratus posterior superior Origin and Insertion

Answer 2

O: Inferior ligamentum nuchae and SP’s of C7 - T3
I: Ribs 2-5 superior borders

Question 3

What muscle do you need to verbalize that the fibres run deep to scapula?

Answer 3

Serratus Posterior Superior

Question 4

Serratus posterior superior Action

Answer 4

Elevates ribs 2-5 (assists respiration)

Question 5

Serratus posterior inferior Origin and insertion

Answer 5

O: Spinous precesses T11-L2
I: Ribs 9-12 (inferior borders/medial to their angles)

Question 6

Serratus posterior inferior Action

Answer 6

Decompresses ribs (assists respiration)

Question 7

Levator costorum Origin and Insertion

Answer 7

O: Tips of Tvps of C7-T11
I: Ribs 1-12 (between tubercle and angle; one rib below origin)

Question 8

Levator Costorum action and note of depth

Answer 8

Elevates ribs (assists with inpiration)
At same depth as transversospinalis group but function with this group

Question 9

Deep Layer - superficial (Splenius Group)

Answer 9

Splenius Cervicis
Splenius Capitus

Question 10

Splenius Cervicus Origin and insertion

Answer 10

O: SP’s T3-6
I: Posterior tubercles of the TVP’s C1-C3

Question 11

Action of the muscles in the Splenius group

Answer 11

Extends, rotates, and laterally flexes the head

Question 12

Nerve innervation of the muscles in the splenius group

Answer 12

Posterior (dorsal) rami of spinal nerves

Question 13

Splenius Capitis origin and insertion

Answer 13

O: Nuchal ligament, spinous processes C7-T3/T4
I: Mastoid process, lateral third of superior nuchal line

Question 14

Erector Spinae group

Answer 14

Iliocostalis: Lumborum, Thoracis, Cervicis
Longissimus: Thoracis, Cervicis, Capitis
Spinalis: Thoracis, Cervicis

Question 15

Transversospinalis Group

Answer 15

Rotatores (Group)
Multifidus
Semispinalis: Thoracis, Cervicis, Capitis

Question 16

Segmental Group

Answer 16

Interspinales
Intertransversarii

Question 17

Erector spinae Common origin

Answer 17

SP’s of T11- L5, Sacrum, PSIS, and the posterior iliac crest.

Question 18

I LIKE STRAWBERRIES

Answer 18

Lateral to medial
I: Iliocostalis
L: Longissimus
S: Spinalis

Question 19

Iliocostalis Lumborum Origin and Insertion

Answer 19

O: Common origin
I: Lower 6 ribs medial to their angles

Question 20

Iliocostalis Thoracis Origin and Inserton

Answer 20

O: Lower 6 ribs medial to ICL insertion
I: Upper 6 ribs medial to their angles

Question 21

Erector spinae action

Answer 21

Extension, lateral flexion and assists with rotation to the same side

Question 22

Iliocostalis Cervicis Origin and Insertion

Answer 22

O: Upper 6 ribs medial to ICT insertion
O: TVP’s of C4-C6

Question 23

Longissimus Thoracis Origin and Insertion

Answer 23

O: Common origin
I: TVP’s of all TS and to lower 9-10 ribs (excluding ribs 2-3) Ribs 3-12
Note: longest of the erector spinae group

Question 24

Longissimus Cervicis Origin and Insertion

Answer 24

O: TVP’s of T1-T6
I: TVP’s of C2-C6

Question 25

Longissimus Capitis Origin and Insertion | Stands out for inserting into the mastoid

Answer 25

O: TVP's of T1-T5, and Articular processes of C4-C7 I: Mastoid process of temporal bone

Question 26

Spinalis Thoracis Origin and insertion

Answer 26

O: Common origin I: SP's of T1-T8 (varies)

Question 27

Spinalis Cervicis origin and insertion

Answer 27

O: Ligamentum nuchae (lower 1/2) and the SP's of C7 - T2 I: SP's of the axis (C2) and occasionally C3/4

Question 28

COMMON ORIGIN

Answer 28

SP's of T11-L5 sacrum PSIS posterior iliac crest

Question 29

What MM originate on the common origin?

Answer 29

Iliocostalis Lumborum Longissimus Thoracis Spinalis Thoracis

Question 30

Rotatores: brevis and longus origin and insertion

Answer 30

O: TVP's ov vertebrae I: Base of SP above Brevis: 1 above Longus: 2 above

Question 31

Transversospinalis group mm action

Answer 31

Rotation to the opposite side and extension of the spine

Question 32

Multifidus origin and insertion

Answer 32

O: Sacrum, mamillary processes of L5-T12, TVP's of all thoracic vertebrae, articular processes of C7-T4 Insertion: SP's of L5-C2 (2-4 vertebrae above their respective origin)

Question 33

Semispinalis Thoracis origin and insertion

Answer 33

O: TVP's of the lower 6 thoracic vertebrae I: SP's of T4-C6

Question 34

Semispinalis Cervicis origin and insertion

Answer 34

O: TVP's T1-T6 I: SP's of C2-C5

Question 35

Semispinalis Capitis origin and insertion

Answer 35

O: TVP's of T6-C7 and articular processes of C6-C4 I: Occiptal bone- between superior and inferior nuchal lines