Deep Back MM

Question 1

Serratus Posterior Superior

Answer 1

O: inf. Ligamentum nuchae
Sp’s C7 - T2/3
I: Sup. Surface rib 2-5
A: elevate rib 2-5 forced inspiration

Question 2

Serratus Posterior Inferior

Answer 2

O: Sp’s T11-L2
I: Inf. Surface ribs 9-12 medial to there angles
A: Stabilize lower ribs - forced expiration
-rotation same side
-ext. thoracic spine

Question 3

Splenius Cerviscis/Colli

Answer 3

O: SP T3-T6
I: post. Tubercles TVP C1- C3
A: EXT, LAT FLEX. ROT. To same side

Question 4

Splenius Capitis

Answer 4

O: 1. SP C7- T3
2. Inf. 1/2 lig. Nuchae (halfway up nk)

I: mastoid process, lat. 1/3 superior nuchal line

A: EXT, Lat. Flex + Rot. Same side of head + CS

Question 5

What is the common origin ?

Answer 5

SP T11-L5
Sacrum
PSIS
POST. ILIAC CREST

Question 6

Iliocostalis Lumborum

Answer 6

o:SP’s of T11 - L5,
sacrum, PSIS and the
posterior iliac crest
Common Origin
I-Lower 6 ribs medial
to their angles
(ribs 7-12)
A:Extension, lateral flexion
and rotation to the same
side of the spine

Question 7

Iliocostalis Thoracis

Answer 7

O:Lower six ribs medial
to ICL insertion
(ribs 7-12)
I:Upper 6 ribs medial
to their angles
(ribs 1-6)
A:Extension, lateral flexion
and assists in rotation to the
same side of the spine

Question 8

Iliocostalis
Cervicis

Answer 8

Upper 6 ribs medial
to ICT insertion
(ribs 1-6)
TVP’s of C4 - C6
Extension, lateral flexion
and assists in rotation to the
same side of the CS

Question 9

Longissimus
Thoracis

Answer 9

SP’s of T11 - L5,
sacrum, PSIS and the
posterior iliac crest
TVP’s of all T-spine &
slips to lower 9-10
ribs
Extension, lateral flexion
and assists in rotation to the
same side of the spine

Question 10

Longissimus
Cervicis

Answer 10

TVP’s of T1-T6
TVP’s of C2 - C6
Extension, lateral flexion
and assists in rotation to the
same side of the CS

Question 11

Longissimus
Capitis

Answer 11

Articular processes
of C4 - C7
TVP’s of T1-T5
Mastoid process
of the temporal bone
Extension, lateral flexion
and assists in rotation to the
same side of the head and
CS

Question 12

Spinalis
Thoracis

Answer 12

SP’s of T11 - L5,
sacrum, PSIS and the
posterior iliac crest
SP’s of T1 - T8
Extension and lateral flexion
of the spine

Question 13

Spinalis
Cervicis

Answer 13

Ligamentum nuchae
(lower half) and the
SP’s of C7 - T2
SP’s of the axis (C2)
(and occasionally
C3 & 4)
Extension and lateral flexion
of the spine

Question 14

Rotatores:
Brevis &
Longus

Answer 14

TVP’s of vertebrae
(All)
Base of SP above
brevis - 1 above
longus - 2 above
Rotation to the opposite
side and extension of the
spine

Question 15

Multifidus

Answer 15

Sacrum, mamillary
processes of L5 - T12,
TVP’s of all thoracic
vertebrae, articular
processes of C7 - C4
SP’s of L5 - C2
(2 - 4 vertebrae
above their respective
origin)

Rotation to the opposite
side, extension and lateral
flexion of the spine

Question 16

Semispinalis
Thoracis

Answer 16

TVP’s of the lower 6-12
thoracic vertebrae
SP’s of C6-T4
Rotation to the opposite
side, extension and lateral
flexion of the spine

Question 17

Semispinalis
Cervicis

Answer 17

TVP’s of the upper 6
thoracic vertebrae
SP’s of C2 - C5

Rotation to the opposite
side, extension and lateral
flexion of the CS

Question 18

Semispinalis
Capitis

Answer 18

1. Articular processes C4-C6
2. Tvp C7-T6

Occipital bone -
between superior
and inferior nuchal
lines

Extension and lateral flexion
of the head and CS

Question 19

Interspinales

Answer 19

Superior surface of
SP’s
Inferior surface of
SP directly above
Extension of the spine

Question 20

Intertransversarii

Answer 20

Superior surface TVP’s
Inferior surface TVP above
Extension Lateral flexion spine