Back/Abs Origin/Insertion

Question 1

splenius capitis

Answer 1

O: nuchal lig and SP of C7-T6
I: Mastoid process and lateral 1/3 of superior nuchal line

Question 2

splenius cervicis

Answer 2

O: nuchal lig and SP of C7-T7
I: posterior tubercles of TP of C1-3 or 4

Question 3

iliocostalis

Answer 3

O: posterior iliac crest, post sacrum, sacral and inferior lumbar SP, supraspinous lig
I: angles of lower ribs and cervical TP

Question 4

longissimus

Answer 4

O: posterior iliac crest, post sacrum, sacral and inferior lumbar SP, supraspinous lig
I: ribs b/t angle and tubercle; mastoid process; TP

Question 5

spinalis

Answer 5

O: posterior iliac crest, post sacrum, sacral and inferior lumbar SP, supraspinous lig
I: SP in upper thorax and skull

Question 6

semispinalis

Answer 6

O: TP of cervical and thoracic vertebrae
I: occipital bone and SP or thoracic and cervical

Question 7

multifidus

Answer 7

O: sacrum, ilium, TP of T1-L5, AP of C4-C7
I: SP

Question 8

rotatores

Answer 8

O: TP of vertebrae, esp. thoracic
I: vertebrae

Question 9

interspinales

Answer 9

O: superior spinous processes
I: inferior spinous processes

Question 10

intertransversarii

Answer 10

O:TP of cervical and lumbar vertebrae
I: TP of adjacent vertebrae

Question 11

levatores costarum

Answer 11

P: TP of C7-T11
I: ribs between angle and tubercle