Erector Spinae (sacrospinalis) Flashcards Preview

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Flashcards in Erector Spinae (sacrospinalis) Deck (16):
1

Which muscles are identified as erector spinae or sacrospinalis muscles?

iliocostalis, longissimus, spinalis

2

What is the innervation of iliocostalis lumborum?

dorsal rami of lower thoracic and all lumbar spinal nerves

3

What is the insertion for the iliocostalis thoracis?

costal angles of the upper 6-7 ribs, transverse process of C7

4

Which subdivisions of the iliocostalis primarily originates & inserts on ribs?

iliocostalis thoracis

5

What is the innervation of iliocostalis thoracis?

dorsal rami of upper 6 thoracic spinal nerves (T1-T6 cord levels)

6

What is the origin of iliocostalis cervicis?

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

7

What is the innervation of the iliocostalis cervicis?

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

8

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

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

9

What is the innervation of longissimus thoracis?

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

10

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

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

11

What is the innervation of longissimus cervicis?

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

12

What is the innervation of longissimus capitis?

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

13

Which erector spinae muscles attach to cervical articular processes?

longissimus cervicis and longissimus capitis

14

What is the innervation of spinalis thoracis?

dorsal rami of all thoracic & upper lumbar spinal nerves

15

What is the innervation of spinalis cervicis?

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

16

What is the innervation of spinalis capitis?

dorsal rami of lower cervical & upper thoracic spinal nerves

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