Lab 1 - Innervations and Actions Flashcards Preview

Spinal Anatomy II > Lab 1 - Innervations and Actions > Flashcards

Flashcards in Lab 1 - Innervations and Actions Deck (59)
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1

Innervation of trapezius?

spinal accessory nerve, C1-C5 cord levels

2

Innervation of latissimus dorsi?

thoracodorsal nerve, ventral rami C6-C8

3

Innervation of levator scapulae?

dorsal scapular nerve, ventral ramus C5 plus ventral rami C3, C4

4

Innervation of rhomboid major?

dorsal scapular nerve, ventral ramus C5 plus ventral rami C4

5

Innervation of rhomboid minor?

dorsal scapular nerve, ventral ramus C5 plus ventral ramus C4

6

Innervation of splenius capitis?

dorsal rami C3-C5

7

Action of splenius capitis?

-laterally flex head and rotate face to side
-bilaterally extend head

8

Innervation of splenius cervicis?

dorsal rami C5-C7

9

Action of splenius cervicis?

-laterally flex and rotate neck
-bilaterally extend neck

10

Innervation of iliocostalis lumborum?

dorsal rami lower T, all L

11

Action of iliocostalis lumborum?

-extension, lateral flexion, rotation of L spine
-lateral movement of pelvis

12

Innervation of iliocostalis thoracis?

dorsal rami T1-T6

13

Action of iliocostalis thoracis?

-extension
-lateral flexion T spine

14

Innervation of iliocostalis cervicis?

dorsal rami T1, T2; rarely C8

15

Action of iliocostalis cervicis?

-extenion
-lateral flexion
-rotation lower C spine

16

Innervation longissimus thoracis?

dorsal rami T and L nerves

17

Action of longissimus thoracis?

-lateral flexion T spine and ribs (L spine inadvertently)
-bilaterally act in extension of T and L spine
-hold T and L spine erect (increases L lordosis)
-lateral movement of pelvis

18

Innervation of longissimus cervicis?

dorsal rami C4-C8; T1-T2

19

Action of longissimus cervicis?

-lateral flexion of neck
-bilaterally extend

20

Innervation of longissimus capitis?

dorsal rami C1-C3, sometimes C4

21

Action of longissimus capitis?

-rotate and laterally flex head
-bilaterally extend head

22

Innervation of spinalis thoracis?

dorsal rami T and upper L

23

Action of spinalis thoracis?

extend T spine

24

Innervation of spinalis cervicis?

dorsal rami C

25

Action of spinalis cervicis?

-lateral flexion and rotation of C spine
-bilaterally extend neck

26

Innervation of spinalis capitis?

dorsal rami lower C, upper T

27

Action of spinalis capitis?

-lateral flexion and rotation of head
-bilaterally extend head

28

Innervation of semispinalis thoracis?

dorsal rami T1-T6

29

Action semispinalis thoracis?

-extension, rotation and lateral flexion of upper T and lower C
-bilaterally extend T spine

30

Innervation of semispinalis cervicis ?

dorsal rami C6-C8