Trunk & Head Muscles

Question 1

Rectus Capitis Posterior

Answer 1

O: Major: C2 Spinous Process
     Minor: C1 Spinous Process
I: Occipital bone
A: bilateral- extend head; unilat-rotate head to same side
N: C1- posterior ramus- subocciptial n

Question 2

Obliquus Capitis

Answer 2

O: Superior: C1 transverse process
     Inferior: C2 Spinous process
I: Superior: occipital bone
   Inferior: C1 transverse process
A: Bilateral - extend head
     Unilat- superior tilt head to same, rotate opposite
                  inferior rotate head to same side
N: C1- posterior ramus, suboccipital n

Question 3

Longus Capitis

Answer 3

O: C3-6 Transverse process & anterior tubercles
I: occipital bone (basilar part)
A: bilateral flexes head, unilateral tilts head and slight rotate to same side
N: direct branches cervical plexus C1-3

Question 4

Longus Cervices Vertical part

Answer 4

O: C5-T3 anterior sides vertebral bodies
I: C2-4 anterior sides of vertebral bodies
A: Bilat FLX C-spine, unilateral tilt/rotate to same side
N: cervical plexus C2-6

Question 5

Longus Cervices Superior Oblique

Answer 5

O: C3-5 transverse processes, anterior tubercles
I: C1 transverse process, anterior tubercle
A: Bilat FLX C -spine, Unilat tilt/rotate to same side
N: cervical plexus C2-6

Question 6

Longus Cervices inferior oblique

Answer 6

O: T1-3 anterior sides of vertebral bodies
I: C5-6 transverse process
A: Bilat FLX C-spine, Unilat tilt/rotate to same side
N cervical plexus C2-6

Question 7

Rectus Capitus Anterior

Answer 7

O: C1 lateral mass
I: occipital bone (basilar part, anterior) 
A: Bilat FLX at AO joint
     Unilat Lat FLX @ AO joint
N: C1 Sca

Question 8

Rectus Capitus Lateralis

Answer 8

O: C1 transverse process
I: occipital bone
A: Bilat FLX @ AO jont
     Unilat Lat FLX @ AO joint
N: C1

Question 9

Scalene: Anterior

Answer 9

O: C3-6 anterior transverse processes
I: 1st rib
A: elevates upper ribs during forces inspiration
Bends C-spine to same side (unilat); FLX neck (bilat)
N: C3-8

Question 10

Scalene: Middle

Answer 10

O: C1-2 transverse processes & C3-7 posterior tubercles of transverse processes
I: 1st rib
A: elevates upper ribs during forces inspiration
Bends C-spine to same side (unilat); FLX neck (bilat)
N: C3-8

Question 11

Scalene: Posterior

Answer 11

O: C5-7 posterior tubercles of transverse processes
I: 2nd rib, outer surface
A: elevates upper ribs during forces inspiration
Bends C-spine to same side (unilat); FLX neck (bilat)
N: C3-8

Question 12

Splenius: Capitus

Answer 12

O: nuchal lig. C3-7
I: Occipital bone (lateral sup nuchal line & mastoid)
A: Bilat: EXT C-spine & head, Unilat: Lat FLX & Rotation to same side
N: Spinal n C1-6

Question 13

Splenius: Cervices

Answer 13

O: T3-6 spinous processes
I: C1-2 transverse processes
A: A: Bilat: EXT C-spine & head, Unilat: Lat FLX & Rotation to same side
N: Spinal n C1-6

Question 14

Iliocostalis: Cervices

Answer 14

O: 3rd-7th ribs
I: C4-6 transverse processes
A: Bilat EXT spine, Unilat Lat FLX to same side
N: spinal n C8-L1

Question 15

Iliocostalis: Thoracis

Answer 15

O: 7-12th ribs
I: 1-6th ribs
A: Bilat EXT spine, Unilat Lat FLX to same side
N: spinal n C8-L1

Question 16

Iliocostalis: Lumborum

Answer 16

O: sacrum- iliac crest; thoracolumbar fascia
I: 6-12th ribs; thoracolumbar fascia; upper lumbar vertebrae
A: Bilat EXT spine, Unilat Lat FLX to same side
N: spinal n C8-L1