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BDS3 ANATOMY > Organisation of the Neck & Posterior triangle > Flashcards

Organisation of the Neck & Posterior triangle Flashcards

1
Q

What are the superior boundaries of the neck?

A

base of skull & inferior border of mandible

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2
Q

what are the inferior boundaries of the neck?

A
  • top of sternum
  • clavicle
  • acromion (anterior)
  • C7 (posterior)
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3
Q

what are the different compartments of the neck & where do they lie?

A

Midline:
- visceral compartment
- vertebral compartment

Lateral:
- vascular compartment

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4
Q

what is the neck fascia?

A

thin casing of connective tissue that surrounds compartments (vertical columns) of neck

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5
Q

what is the function of neck fascia?

A
  • provides containment and protection for muscles/viscera & conduit for neurovascular structures
  • provides slipperiness that allow structures to slide over each other
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6
Q

what is the neck fascia divided into?

A

superficial fascia & deep fascia

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7
Q

what is the superficial neck fascia?

A

cervical subcutaneous connective tissue that is continuous with superficial fascia of thorax

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8
Q

what does the superficial neck fascia contain?

A
  • cutaneous nerves
  • vessels
  • superficial lymph nodes & fat
  • platysma
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9
Q

what are the cutaneous nerves of the cervical plexus?

A
  • lesser occipital
  • great auricular
  • transverse cervical
  • supraclavicular
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10
Q

what does the superficial neck fascia connect to?

A

mandible and facial muscles

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11
Q

what are the deep fascia of the neck divided into?

A
  • investing
  • pretracheal
  • prevertebral

also makes up the carotid sheathe

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12
Q

where is the investing layer of deep fascia located?

A

surrounds neck completely
- splits into superficial and deep layers to enclose muscles

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13
Q

what muscles does the investing layer of deep fascia enclose?

A
  • sternocleidomastoid muscle
  • trapezius muscle
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14
Q

what glands does the investing layer of deep neck fascia enclose?

A
  • parotid glands
  • submandibular glands
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15
Q

what is the investing layer of deep neck fascia pierced by?

A
  • external & anterior jugular veins
  • cervical plexus
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16
Q

what are the superior attachments of the investing layer of deep neck fascia?

A
  • superior nuchal line of occipital bone
  • mastoid process of temporal bone
  • zygomatic arches
  • inferior border of mandible
17
Q

what are the inferior attachments of the investing layer of deep neck fascia?

A
  • spine of scapula
  • acromion
  • clavicle
  • manubrium (posteriorly and anteriorly)
18
Q

what is the anterior attachment of the investing layer of deep neck fascia?

A

hyoid bone

19
Q

what forms the suprasternal space?

A

the investing layer of deep fascia that divides posteriorly and anteriorly to enclose the heads of the sternocleidomastoid muscle

20
Q

what are the posterior attachments of the investing layer of deep neck fascia?

A

Posteriorly continuous with
- ligamentum nuchae
- periosteum of C7 spinous process

21
Q

what is the pretracheal layer of deep neck fascia divided into?

A
  • visceral part
  • muscular part
22
Q

what does the visceral part of the pretracheal layer of deep neck fascia enclose?

A
  • trachea
  • oesophagus
  • thyroid gland
23
Q

what does the muscular part of the pretracheal layer of deep neck fascia enclose?

A
  • infrahyoid muscles (separates them from trachea & thyroid)
24
Q

what is the function of the pretracheal layer of deep neck fascia?

A

forms pulley (trochlea) for intermediate tendon of digastric which suspends the hyoid

25
Q

where does the pretracheal layer of deep neck fascia extend from?

A

from the hyoid bone to the upper thoracic cavity

26
Q

what does the pretracheal layer of deep neck fascia laterally fuse with?

A
  • alar fascia
  • carotid sheaths
27
Q

what does the prevertebral layer of deep neck fascia surround?

A
  • vertebral column
  • pre & post-vertebral muscles
28
Q

what is the prevertebral layer of deep neck fascia pierced by?

A
  • cutaneous branches of cervical plexus
  • cervical parts of sympathetic trunk
29
Q

where is the prevertebral layer of deep neck fascia superiorly fixed to?

A

cranial base

30
Q

what does the prevertebral layer of deep neck fascia blend with inferiorly?

A
  • endothoracic fascia
  • anterior longitudinal ligament
31
Q

what does the carotid sheath have boundaries with?

A

all three layers of deep cervical fascia
- investing & pretracheal anteriorly
- prevertebral posteriorly

32
Q

what does the carotid sheath connect?

A

connects cranial cavity with mediastinum (thorax)

33
Q

what is the anterior triangle of the neck bounded by?

A

bounded by inferior border of mandible, anterior border of sternocleidomastoid muscle and midline of neck

34
Q

what are the posterior triangles of the neck bounded by?

A
  • posterior border of sternocleidomastoid
  • middle third of clavicle
  • anterior border of trapezius

BDS3 ANATOMY (26 decks)

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