Neck: Fascia Layers and Compartments Flashcards Preview

Anatomy Unit 2 > Neck: Fascia Layers and Compartments > Flashcards

Flashcards in Neck: Fascia Layers and Compartments Deck (61):
1

fascia layer that is superficial (immediately deep to the skin)

subcutaneous tissue; comprised of loose connective tissue and fat

2

describe fascia layer deep to the superficial fascia

multiple layers, dense, organized connective tissue, no fat,. envelops most body structures

3

what muscle of the neck is part of the superficial layer

plastisma m

4

what is the outermost deep fascia

investing fascia

5

what does the investing fascia surround

trapezius m., sternoclydomastoid m., and the infrahyoid m.

6

the _____ fascia is in the same layer as the buccopharyngeal fascia

pretracheal fascia

7

what does the pretracheal fascia surround

thyroid, trachea, esophagus, post. surface of the infrahyoid mm.

8

what does the buccopharyngeal fascia surround

pharynx posteriorly

9

two portions of the pretracheal fascia

1. muscular pretracheal f.- surrounds infrahyoid m.
2. visceral pretracheal f- surrounds thyroid, trachea and esophagus

10

what does the pre vertebral fascia surround

pre vertebral and deep back muscles

11

the pre vertebral layer in the anterolateral position extends from the _________ muscles to surround the ____ and the ____ artery as these structures pass into the axilla. This forms the ______

anterior and middle scalene muscles; brachial plexus and subclavian artery; axillary sheath

12

carotid sheath surrounds the

common carotid a, internal carotid a, and internal jugular vein, vagus nerve

13

the fascia layers extend from the _____ to the _____

base of the skull to the upper thorax

14

in the ____ view the carotid space is not visible

sagittal

15

the carotid sheath is formed by?

condensations of deep cervical fascia

16

infections or blood can spread with the prevertebral sheaths from ____ to ______

skull; posterior mediastinum

17

all fascia layers attach at the

start of the bones of the skull

18

pretracheal space location

between trachea and infrahyoid mm. from THYROID CARTILAGE and down into the a ANTERIOR MEDIASTINUM

19

retropharyngeal space location

between buccopharyngeal and alar fascia. from SKULL BASE down into SUPERIOR MEDIASTINUM

20

Prevertebral "danger" space location

between alar and pre vertebral fascial. Infections here can spread from SKULL BASE down into POSTERIOR MEDIATINUM. notorious for inferior spread of infection

21

zone 1

thoracic inlet to cricoid cartilage. (most inferior)

22

zone 2

cricoid cartilage to angle of mandible

23

zone 3

angle of mandible to base of skull

24

zone terminology is used in what setting

emergency room terminology

25

boundaries of the posterior triangle

Anterior: sternoclydomastiod m.
Posterior boundary: Trapezius muscle

Inferior boundary: middle 1/3 of the clavicle

26

list the contents of the posterior triangle from superficial to deep

1. platysma m
2. external jugular v
3. cutaneous nerve
4. motor nerve
5. transverse cervical and suprascapular aa
6. deep muscles

27

where do you find the external jugular vein

on the surface of the sternoclydomastoid muscle vertically orientated

28

all the cutaneous nerves emerge from

Erb's point; deep to the sternoclydomastoid muscle

29

list the cutaneous nerves

1. lesser occipital n.
2. great auricular n.
3. transverse cervical n.
4. supraclavicular nn.

30

lesser occipital vertebral level and location

C2-3. runs superiorly along posterior border of SCM. crosses over portion of occipital a.

31

great auricular nerve vertebral level and location

c2-3. ascends vertically on surface of SCM. runs with EJV superiorly toward ear

32

transverse cervical nerve vertebral level and location

c2- c3. runs transversely across middle of SCM

33

supraclavicular nerve vertebral level and location

c3-c4. runs superficial to clavicle and deep to platysma

34

what does the lesser occipital n. supply

skin and scalp at apex of triangle

35

what does the great auricular n supply

supplies lobe and skin posterior to auricle. supples angle of mandible to mastoid process

36

transverse cervical n supplies?

skin of anterior cervical triangle and lateral neck

37

3 main branches of supraclavicular n.

medial, intermediate and lateral

38

the accessory nerve i not ___ and supplies what?

cutaneous; trapezius and SCM

39

motor nerves of posterior triangle

accessory n and phrenic n

40

location of accessory nerve (CNXI)

emerges from JUGULAR FORAMEN of skull then runs diagonally through triangle deep to investing fascia

41

phrenic nerve location and vertebral level

(C3-5). descends vertically along ANTERIOR SCALENE M. it is crossed anteriorly by transverse cervical a and supra scapular a. enters thorax between SUBCLAVIAN v and a

42

phrenic nerve travels along the_____ to supply the diaphragm

pericardial sac

43

irritation of phrenic n referred from diaphragm can go to the _____ in the _____ region

supraclavicular nn; clavicle region

44

what are the vessels of the posterior triangle

1. external jugular v
2. transverse cervical a
3. supra scapular a

45

where does the external jugular v drain into

subclavian v

46

where do the transverse cervical a and supra scapular a arise from

thyrocerival trunk

47

in the lower part of posterior triangle the EJB pierces the _______ of ____ and ends in the ____ v

investing layer of cervical fascia; subclavian v

48

what are the 4 deep muscles of the posterior triangle

1. splenius wapitis m
2. levator scapulae m
3. 3 scalene mm
4. omohyoid m (inferior belly)

49

what is the action of the the splenius capitis muscle

extend and laterally rotate head and neck

50

innervation of splenius capitis muscle

dorsal rami of spinal n

51

what is the action of the elevator scapulae muscle

elevate scapula

52

innervation of elevator scapulae muscle

dorsal scapular nerve (c5)

53

what is the action of the 3 scalene muscles (anterior, middle, posterior)

tilt neck laterally

54

innervation of scalene muscles

central rami of c3-c8 nn

55

inter scalene traingle

elongated triangle deep to posterior cervical triangle

56

borders of inter scalene triangle

anterior scalene, middle scalene, and 1st rib

57

what passes through the inter scalene triangle

brachial plexus and subclavian artery

58

the subclavian v passes anterior to the?

anterior scalene m

59

clinical implications if the inter scalene triangle is too narrow

extra muscle slips, cervical ribs or cartilage outgrowths may compress brachial plexus or subclavian artery and lead to NERVE DYSFUNCTION or ISCHEMIA , or THORACIC OUTLET SYNDROME

60

infections or blood can spread with the retropharyngeal sheaths from ____ to ______

skull base to superior mediastinum

61

infections or blood can spread with the pretracheal sheaths from ____ to ______

thyroid cartilage down int anterior mediastinum