Neck: Root of the Neck Flashcards Preview

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Flashcards in Neck: Root of the Neck Deck (38):
1

boundaries of root of neck

body of T1 anterior surface
head and neck of first rib
body first rib
distal portion first rib, articulation of first rib with manubrium

sternoclavicular articulation is included in definition of root of neck

2

attachments of anterior scalene

O: anterior tubercles of transverse processes CV3-6
I: scalene tubercle first rib

3

action of anterior scalene

elevate first rib
side bends and rotates cervical column to opposite side

both sides - flex vertebral column

4

innervation of anterior scalene

ventral rami, spinal nerves C5-7

5

attachments of middle scalene

O: posterior tubercles of transverse processes of CV2-7
I: superior surface of first rib posterior to groove for subclavian artery

6

action of middle scalene

elevates first rib
side bends and rotates cervical column
both sides - flexes vertebral column

7

innervation of middle scalene

ventral rami C3-8

8

scalene triangle

passage of brachial plexus and subclavian artery

between anterior and middle scalenes

compression can occur during tonic contraction of in presence of cervicla rib

thoracic outlet syndrome

9

thoracic outlet syndrome symptoms

pain
numbness and tingling in neck, medial forearm, and digits 4 and 5

paresis of intrinsic muscles of hand

poor circulation - cold hands

10

brachial plexus nerve block

anesthetic agent around supraclavicular portion of brachial plexus

11

attachments of posterior scalene

O: posterior tubercles of transverse process CV5-7
I: outer surface of second rib

may be fused with middle scalene

12

action of posterior scalene

elevates second rib
side bends and rotates cervical column
both sides - flexes vertebral column

13

innervation of posterior scalene

ventral rami - brachial plexus C7-8

14

attachments of longus capitis

O: anterior tubercles of transverse processes of CV3 -6
I: inferior surface, basilar portion of occipital bone

15

action of longus capitis

flexes head and neck

16

innervation of longus colli

O and I:
upper portion extends from anterior surface of vertebral bodies above to transverse processes of vertebrae below

lower portion extends from anterior surfaces of vertebral bodies below to transverse processes of vertebrae above

17

action of longus colli

flexes neck and assists in its rotation

upper fibers rotate same side
lower fibers rotate opposite side

18

innervation of longus colli

ventral rami - spinal nerves C2-7

19

right brachiocephalic artery

bifurcates posterior to SC joint into right subclavian and common carotid artery

20

left aorta

common carotid and subclavian artery arise directly from aorta

21

three parts of subclavian artery

1 - medial to anterior scalene
2 - behind anterior scalene
3 - lateral to anterior scalene

22

part 1 of subclavian artery

vertebral artery
thyrocervical trunk
internal thoracic artery

23

vertebral artery

enters transverse cervical foramen of CV6
goes posterior over atlas
pierces AO membrane
ascends through foramen magnum where it fuses with opposite counterpart

24

branches of thyrocervical trunk

inferior thyroid artery
transverse cervical artery
suprascapular artery
ascending cervical artery

25

It'S TC-AC

inferior thyroid
suprascapular
transverse cervical
ascending cervical

arterial branches of thyrocervical trunk

26

inferior thyroid artery

branches from thyrocervical trunk medially to ascend medial border of anterior scalene

passes behind carotid sheath and sympathetic trunk at level of thyroid cartilage

branches to pharynx larynx trachea and esophagus
glandular branches to inferior thyroid

**anastomose with posterior branch of superior thyroid artery

27

transverse cervical artery

branches from thyrocervical trunk laterally

crosses posterior triangle by passing deep to trapezius muscle which it supplies

28

suprascapular artery

branches from thyrocervical trunk laterally just inferior to origin of transverse cervical artery

crosses posterior triangle inferiorly deep to inferior belly of omohyoid

joined by suprascapular nerve as it passes out of posterior triangle laterally to scapular region

29

ascending cervical artery

possible branch of thyrocervical trunk
-often from inferior thyroid artery

ascends anterior scalene medial to phrenic nerve to provide muscular and spinal branches

30

internal thoracic artery

arises from subclavian opposite thyrocervical trunk

descends inferiorly to thorax posterior to sternal end of clavicle and junction of subclavian and internal jugular veins

crossed anteriorly by phrenic nerve

31

costocervical trunk

second part of subclavian artery
-passes posteriorly from subclavian artery over cupola of lung where it divides into:

deep cervical and highest intercostal artery

32

deep cervical artery

branch of costocervical trunk
ascends dorsal to brachial plexus between semispinalis cervicis and capitis

anastomose with descending branch of occipital artery

33

highest intercostal artery

branch of costocervical trunk

descends anterior to head of first rib to provid posterior intercostal artery to first intercostal space and terminates by forming second posterior intercostal artery

34

dorsal scapular artery

part 3 of subclavian artery branching

passes dorsally through brachial plexus near middle trunk

descends under rhomboids along vertebral border of scapula

involved in scapular anastomosis

35

brachiocephalic vein formation

from subclavian and internal jugular veins

36

tributaries to subclavian vein

external jugular, dorsal scapular

37

tributaries to brachiocephalic vein

vertebral and inferior thyroid vein

38

central venous line

utilize subclavian vein

parenteral fluids or drugs, cardiac cath, means of measuring central venous pressure

stick the axillary vein, needle to subclavian vein