Posterior Triangle; Root of neck Flashcards Preview

Anatomy Final > Posterior Triangle; Root of neck > Flashcards

Flashcards in Posterior Triangle; Root of neck Deck (37):
1

Identify 

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Mastoid process 

2

Identify 

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Styloid process 

3

What bone lies anterior in the neck and is suspended 

Hyoid bone 

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4

Identify 

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Platysma 

5

origin and insertion of platysma 

O: Inferior border of mandible

I: Deltopectoral fascia 

6

Innervation and action of platysma 

N: Facial Nerve (CN VII)

A: Draws skin of neck superiorly and corners of mouth inferiorly 

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7

Identify 

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Sternocleidomastoid 

8

Origin and insertion of sternocleidomastoid 

O: Manubrium & Medial 1/3 of clavicle 

I: Mastoid process 

9

Innervation and action of sternocleidomastoid

N: spinal accessory n (CN XI)

A: Unilateral: lateral flexion; contralateral rotation

Bilat: Inferior flexion & Superior extension 

10

Borders of anterior triangle of neck 

  • anterior border of sternocleidomastoid
  • inferior border of mandible
  • anterior midline of neck 

11

Borders of posterior triangle of neck 

  • posterior border of sternocleidomastoid
  • anterior border of trapezius
  • middle 1/3 of clavicle 

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12

Name the origin and insertion of the scalene muscles 

O: Cervical transverse processes

I: anterior & middle: 1st rib

Posterior: 2nd rib 

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13

What artery and plexus runs through the interscalene triangle 

subclavian artery

Brachial plexus 

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14

Identify red and green 

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red: longus capitis

green: Longus coli 

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15

Origin and insertion of longus colli

O: upper thoracic and lower cervical vertebral bodies and middle cervical transverse processes

I: upper cervical vertebral bodies 

16

Origin and insertion of longus capitis

O: middle cervical transverse processes

I: occipital 

17

Innervation of longus colli and longus capitis

cervical anterior rami 

18

action of longus colli and longus capitis

a: both: flex neck

capitis: flex atlanto-occipital joint 

19

identify and "a" and black arrow 

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a: common carotid

black arrow: subclavian artery 

20

Identify the blue and red arrow 

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blue: thyrocervical trunk

red: internal thoracic a. 

21

Yellow and green arrow 

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yellow: vertebral a.

green: costocervical trunk 

22

Name the three arteries coming off of the thyrocervical trunk

  • suprascapular
  • transverse cervical
  • inferior thyroid 

23

What makes up the venous angle 

  • subclavian vein (I;C)
  • internal jugular vein (A;B)
  • brachiocephalic vein (G;D)

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24

Identify lymphatics at venous angle (a and e)

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a: right lympathic duct

e: thoracic duct 

25

Where does the right recurrent laryngeal artery run?

from the vagus nerve under the right subclavian artery 

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26

identify 

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cervical sympathetic trunk 

27

Identify 

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phrenic nerve 

  • lies on the anterior scalene muscle 

28

identify 

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vagus nerve (CN X) 

29

1/100 people have rib development of the 7th cervical vertebrae. What is a possible complication?

cervical rib in the interscalene triangle can compress subclavian artery and inferior trunk of brachial plexus 

30

Name the 4 muscles of the posterior triangle

splenius capitis

levator scapulae

scalenes

inferior belly of omohyoid 

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31

What arteries can you expect to find in the posterior triangle

  • transverse cervical a.
  • suprascapular s.
  • Distal subclavian a.
  • dorsal scapular a. 

32

Identify all arrows

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black: external jugular vein

red: posterior auricular vein

green: posterior division of the retromandibular vein 

*drains into subclavian 

33

What lymph nodes run along the external jugular vein

superficial cervical lymph nodes

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34

Nerves from the cervical plexus (C1-C4 anterior rami) that pass through the posterior triangle.  What innervation do they bring?

sensory (cutaneous innervation) 

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35

Name the cervical plecus nerves of the posterior triangle that arise from the nerve point of the neck 

  • lesser occipital
  • great auricular
  • transverse cervical
  • supraclavicular 

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36

The nerve point of the neck arises through what muscle

sternocleidomastoid 

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37

What CN passes through the posterior triangle of the neck 

spinal accessory nerve (CN XI)

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