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Flashcards in Exam III Study Questions Deck (347)
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1

Which of the muscles attaching to spinous processes represent layer one of the true back?

Trapezius, latissimus dorsi

2

Which of the muscles attaching to spinous processes represent layer two of the true back?

Rhomboid major, rhomboid minor

3

Which of the muscles attaching to the scapula represent layer one of the true back?

Trapezius

4

Which of the muscles attaching to the scapula represent layer two of the true back?

Levator scapulae, rhomboid major, rhomboid minor

5

Which of the muscles attaching to the lateral mass of C1 represent layer two of the true back?

Levator scapulae

6

Which of the muscles of the true back is innervated by the thoracodorsal nerve?

Latissimus Dorsi

7

What forms the thoracodorsal nerve innervating the latissimus dorsi?

Ventral rami of C6-C8

8

What forms the dorsal scapular nerve?

The ventral ramus of C5

9

What part of the vertebrae forms the osseous origin for the splenius?

The spinous process

10

Splenius Capitis will attach to what locations on the skull?

Mastoid process of the temporal bone, superior nuchal line of the occipital bone

11

What is the innervation of the splenius capitis?

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

12

Splenius cervicis will attach to what locations on the spine?

Lateral mass of C1, posterior tubercle of transverse process on C1-C4

13

What is the innervation of the splenius cervicis?

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

14

Which muscles represent the fourth layer of the true back?

Erector spinae or sacrospinalis muscles

15

Which muscles are identified as erector spinae or sacrospinalis muscles?

Iliocostalis, longissimus, spinalis

16

What muscles are classically identified as iliocostalis muscles?

Iliocostalis lumborum, iliocostalis thoracis, iliocostalis cervicis

17

What osseous parts of the vertebral column serve as an origin to the iliocostalis lumborum?

Spinous processes of T11-T12, L1-L5, median sacral crest, lateral sacral crest

18

Contraction of iliocostalis lumborum will result in what movements?

Extension, lateral flexion and rotation of lumbar spine, lateral pelvic movement

19

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

NONE

20

What is the insertion for the iliocostalis thoracis?

Costal angles of the upper 6-7 ribs
Transverse process of C7

21

What osseous parts of the vertebral column serve as an origin to the iliocostalis cervicis?

NONE

22

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

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

23

Which erector spinae muscles attach to cervical articular processes?

Longissimus cervicis, longissimus capitis

24

Which muscles are identified as transversospinalis muscles?

Semispinalis, multifidis, rotators

25

How many vertebrae can be attached to a single segment by transversospinalis muscles?

As many as nine vertebrae

26

What segment will represent the lowest attachment site for the semispinalis thoracis?

T12

27

What osseous parts of the vertebral column serve as an origin to the semispinalis cervicis?

Transverse tubercles of T1-T5/T6, articular processes of C4-C7

28

What osseous parts of the vertebral column serve as an origin to the semispinalis capitis?

Transverse tubercles of C7, T1-T6/T7, articular processes of C4-C6

29

The biventer cervicis is formed by the fusion of what muscles?

Semispinalis capitis and spinalis capitis

30

Which transversospinalis muscle attaches to articular and mammillary processes along the spine?

Multifidis