Unique Muscles of Post. Neck/ Erector Spinae

Question 1

innervation of the splenius capitis

Answer 1

dorsal rami of middle cervical spinal nerves (C3-C5 cord levels)

Question 2

splenius cervicis will attach to what locations on the spine

Answer 2

lateral mass of C1 & posterior tubercle of transverse process on C1-C4

Question 3

innervation of splenius cervicis

Answer 3

dorsal rami of lower cervical spinal nerves (C5-C7 cord levels)

Question 4

muscles that are identified as erector spina or sacrospinalis muscles

Answer 4

iliocostalis,
longissimus,
spinalis

Question 5

innervation of the iliocostalis lumborum

Answer 5

dorsal rami of lower thoracic and all lumbar spinal nerves

Question 6

the insertion for the iliocstalis thoracis

Answer 6

costal angels of the upper 6-7 ribs,

transverse process of C7

Question 7

origin for the iliocostalis cervicis

Answer 7

costal angels of the upper 3-6 ribs (ribs 1-3 or 1-6)

Question 8

insertion for the iliocostalis cervicis

Answer 8

posterior tubercle of transverse process of C(3) C4-C6

Question 9

innervation of the ilicostalis cervicis

Answer 9

dorsal rami of T1, T2 spinal nerves, sometimes C8 spinal nerve (C8,T1,T2 cord levels)

Question 10

osseous parts of the vertebral column serve as an origin to the longissimus thoracis

Answer 10

accessory process & transverse processes of L1-L5, spinous processes of L3-L5 and median sacral crest S1-S3

Question 11

innervation of the longissimus thoracis

Answer 11

dorsal rami of all thoracic & lumbar spinal nerves (cord levels T1-T12, L1-L5)

Question 12

osseous parts of the vertebral column serve as an insertion for the longissimus cervicis

Answer 12

post. tubercle of transverse processes from C2-C6 or C7, articular processes from C2-C6 or C7

Question 13

innervation of the longissimus cervicis

Answer 13

dorsal rami of C4-C8 and T1-T2 spinal nerves (C4-C8 & T1-T2 cord levels)

Question 14

innervation of the longissimus capitis

Answer 14

dorsal rami of C1-C3 or C4 spinal nerves (C1-C3 or C4 cord levels)

Question 15

erector spinae muscles attach to cervical articular processes

Answer 15

longissimus cervicis and longissimus capitis

Question 16

osseous parts of the vertebral column that serve as an origin to the spinals thoracis

Answer 16

spinous processes of T11 & T12-L1 & L2

Question 17

innervation of the spinals cervicis

Answer 17

dorsal rami of all cervical spinal nerves (C1-C8 cord levels)

Question 18

innervation of the spinals capitis

Answer 18

dorsal rami of lower cervical & upper thoracic spinal nerves