Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BDS3 Anatomy > Organisation of Neck and Posterior Triangle > Flashcards

Organisation of Neck and Posterior Triangle Flashcards

1
Q

boundaries of neck

A

superior = base of skull and inferior border of mandible
inferior = top of sternum, clavicle, acromion(anterior) and C7(posterior)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what are the three compartments of neck

A

visceral
vascular
vertebral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

contents of visceral compartment of neck

A

parts pf resp and GI systems
endocrine glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

contents of vascular compartment of neck

A

CCA
IJV
vagus nerve CNX

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

contents of vertebral compartment of neck

A

cervical vertebrae
spinal cord
muscles
cervical nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is faschia

A

tissue which surrounds the neck compartments - contains, provides slipperiness and protects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

superficial faschia (cervical subcutaneous tissue)

A

fatty connective tissue
contains cutaneous nerves, BV, lymphatics, platysma
connects to mandible and facial muscles and is continuous w superficial faschia of thorax

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

deep fascia (remaining layers)

A

3 types ; investing, pretracheal, prevertebral - also forms carotid sheath
connective tissue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Investing faschia - deep

A

surrounds neck completely and invests the trapezius, SCM, parotid and submandibular glands
can invest infrahyoids too
pierced by external anterior jugular veins and nerves such as cervical plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

superior attachments of investing layer

A

superior nuchal line of occipital bone
mastoid process of temporal bone
zygomatic arches
inferior border of mandible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

inferior attachments of investing layer

A

spine of scapula
acromion
clavicle
manubrium - post and ant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

anterior attachments of investing layer

A

hyoid bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

posterior attachments of the investing layer

A

ligamentum nuchae
periosteum of C7 spinous process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is the suprasternal space

A

space in investing faschia where is divides to enclose the heads of the SCM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what does the pretracheal faschia visceral part enclose

A

trachea
oesophagus
thyroid gland

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what does the pretracheal faschia muscular part enclose

A

infrahyoid muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

how does the pretracheal faschia help suspend the hyoid

A

forms pulley for the intermediate tendon of digastric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

where does the pretracheal faschia start and end

A

base of skull -> hyoid -> upper thoracic cavity
continuous w buccopharyngeal faschia of the pharynx
laterally fuses w alar faschia and carotid sheaths

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what pierces the pretracheal faschia

A

thyroid vessels

20
Q

what does prevertebral faschia surround

A

vertebral column
pre and post vertebral muscles (scalene, longus colli, longus capitis and deep cervical muscles)
laterally extends to surround axillary vessels and brachial plexus as axillary sheath

21
Q

what pierces the prevertebral faschia

A

cutaneous branches of cervical plexus
cervical parts of sympathetic trunk embedded

22
Q

attachments of prevertebral faschia

A

superiorly = cranial base
inferiorly = endothoracic faschia and anterior longitudinal ligament

23
Q

what does the carotid sheath surround

A

CCA
ICA
IJV
CN X - vagus
deep cervical lymph nodes
other nerves

24
Q

what does the carotid sheath connect

A

cranial cavity(foramen of carotid sheath) to aortic arch/mediastinum (thorax)
= potential pathway for infection

25
Q

what are the borders of the carotid sheath

A

other 3 layers of deep faschia

26
Q

posterior triangle borders

A

post border of SCM
ant border of trapezius
middle 3rd of clavicle
apex = superior nuchal line of occipital bone
roof = investing faschia, platysma, superficial faschia and skin
floor = prevertebral faschia surrounding muscles at floor of triangle (ant, post, middle scalenes, levator scapulae, splenius capitis)

27
Q

nerves/BV in SCM region of neck

A

great auricular
transverse cervical

superior part of EJV

28
Q

nerves in trapezius region of neck

A

cutaneous branches of posterior rami of cervical spinal nerves

29
Q

subdivisions of posterior triangle

A

occipital triangle
omoclavicular/subclavian triangle
divided by inferior belly of omohyoid

30
Q

SCM origin and insertion

A

o =
sternal head = manubrium
clavicular head = superior surface of medial 3rd of clavicle
i =
lateral surface of mastoid process
lateral half of superior nuchal line

31
Q

SCM innervation

A

spinal accessory nerve CNXI 11

32
Q

SCM actions

A

draw head forward bilaterally(both SCMs working)
tilts head forward towards ipsilateral shoulder while turning head contralaterally - unilaterally

33
Q

trapezius origin and insertion

A

o =
superior nuchal line
external occipital protuberance
ligamentum nuchae
spinous processes C7-T12
i=
lateral 3rd of clavicle
acromion
spine of scapula

34
Q

trapezius innervation

A

spinal accessory nerve CNXI 11

35
Q

trapezius actions

A

assists in rotating scapula during abduction of humerus - the upper fibres elevate, middle abduct and lower depress scapula

36
Q

cutaneous nerve

A

supplies skin

37
Q

muscular nerve

A

supplys muscle

38
Q

cutaneous branches of cervical plexus

A

C2 = lesser occipital nerves
C2 and 3 = great auricular and transverse cervical nerves
C3 and 4 - supraclavicular nerves

39
Q

muscular branches of cervical plexus

A

C3,4,5 = phrenic nerve
C1,2,3 = ansa cervicalis - branches to prevertebral and vertebral muscles

40
Q

cervical plexus

A

a plexus of the anterior rami of C1-4

41
Q

plexus

A

a network of nerves

42
Q

ansa cervicalis

A

anterior rami of C1-3 - nerves coming from C-3 all join into this loop of nerves
superior and inferior roots
loops carotid sheath

43
Q

what is innervated by the ansa cervicalis

A

infrahyoid muscles
bar thyrohyoid

44
Q

vasculature of posterior triangle

A

anterior jugular vein drains into EJV which drains into subclavian vein

45
Q

structures that cross the SCM

A

great auricular nerve
transverse cervical nerve
EJV

46
Q

structures that cross the posterior traingle

A

CNXI - spinal accessory
EJV
lesser occiptial nerve
transverse cervical artery and vein
supraclavicular nerves

47
Q

infrahyoid muscles in the posterior triangle

A

omohyoid
sternohyoid

BDS3 Anatomy (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions