Ga060801B

Front 1

Semispinalis Capitis

Back 1

1. Inserts between the superior & inferior nuchal lines on the skull

Front 2

Suboccipital Triangle:
1. Composition

Back 2

1. Lateral Side: Obliques Capitis Superior
2. Medial Side: Rectus Capitis Posterior Major
3. Inferior Border: Obliques Capitis Inferior

Front 3

Obliques Capitis Superior
1. Location
2. Function

Back 3

1.From Transverse process C1 to occipital bone btwn inferior/superior nuchal lines
2. lateral rotation of atlas on the axis

Front 4

Obliques Capitis Inferior
1. Location
2. Function

Back 4

1. From Spinous process C2 to transverse process C1
2. Lateral rotation of atlas on the axis

Front 5

Rectus Capitis Major
1. Location
2. Function

Back 5

1. From Spinous process C2 to occipital bone below inferior nuchal line
2. Allow for extension posteriorly of the neck & head

Front 6

Rectus Capitis Minor
1. Location
2. Function

Back 6

1. Directly medial to Rectus Capitis Major muscle
2. Allow for extension posteriorly of the neck & head

Front 7

What emerges through the suboccipital triangle?

Back 7

1. Suboccipital Nerve = dorsal ramis of C1
2. Supplies the four muscles of the triangle with motor innervation

Front 8

What is different about the dorsal ramus of C1?

Back 8

NO SENSORY COMPONENT
Therefore, it has no dorsal root ganglion.

Front 9

Greater Occipital Nerve

Back 9

Emerges from below the oliques capitis inferior and passes superiorly through the suboccipital triangle and emerges onto the base of the skull

Front 10

Lesser Occipital Nerve

Back 10

Comes down laterally ?????

Front 11

Erector Spinae

Back 11

-Longitudinal Muscles that help maintain erectness
-Deep Muscles of the Back (3)
1. Spinalis
2. Longissimus
3. Iliocostalis
-All supplied by posterior intercostal artery?

Front 12

Iliocostalis
1. Location
2. Attachment
3. Innervation

Back 12

1. Most medial group
2. Attaches spinous process (attachments in lumbar, thoracic, & cervical regions)
3. Dorsal Rami of Spinal Nerves

Front 13

Longissimus
1. Location
2. Attachment
3. Innervation

Back 13

1. Intermediate group
2. Inferior attachment is sacrum; superior attachments are transverse proccesses of thoracic & cervical regions & capitis

Front 14

Iliocostalis
1. Location
2. Attachment
3. Innervation

Back 14

1. Most lateral group
2. Inferior attachment is the ilium; superior attachments are ribs
3. Dorsal Rami of Spinal Nerves

Front 15

Transversospinalis

Back 15

-Deepest muscles in the back
-Run from transverse processes to spine as a group
-Three parts

Front 16

Semispinalis Capitis

Back 16

Largest of the Transversospinalis group
1. Found just deep of the splenius capitis; fibers course vertically
2. Inserts into the occipital bone inferior to the superior nuchal line.

Front 17

Rotatores

Back 17

1. Attach from transverse processes to the spine

Front 18

Multifidus

Back 18

Deepest of the Transversospinalis group
1. Passes btwn individual veterbra

Front 19

Thoracolumbar Nerve

Back 19

Innervates the latissimus dorsi

Front 20

Splenius Muscle

Back 20

1. Lies deep to the trapezius muscle
2. Fibers course obliquely across the neck
3. Attaches to nuchal ligament & spinous processes C7-T6 and/or mastoid process or cervical vertebrae