Neck Facia + Post. Triangle+Anterior Tirangle Flashcards
بسم الله الرحمن الرحيم
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مالك يوم الدين
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Mention layers of deep fascia of neck
Investing Facia
Pretracheal
prevertebral
Carotid sheath
Investing fascia surrounds the neck as collar and when meeting The Sternomastoid o Trapeizus it splits to enclose the muscle then after trapezius attach to ?
Ligamentum Nuchae
layers of Neck ?
Skin
superficial fascia contaitnig platysma
Deep fascia :
investing
pretireaheal Visceral
prevertebral Vertebral
Carotid sheath Vascular
Carotid sheath enclosing ?
1-Carotid artery
2-Internal Jugular
3-Vagus
The roof of anterior and posterio triangles of neck formed by?
Investing deep Fascia
Investing Fascia
Surroundung neck as …….deep to …….is ?
collar
platysma
Investing deep fascia is ? لفافة الثنائيات ليه ؟
Investing 2 muscles : Sternomastoid - trapezius
investing 2 glands : submandiublar + parotid
Froming 2 spaces :
Suprasternal + supraClavicular
Froming 2 pullyes for digastric + omohyoid muscle
The investing fascia enclose 2 glands but separates them how?
Parotid + submandiublar glands
Separating them by thickening to form StyloMandibular ligament !
mention attachments of The investing Facia of NEck
Behind ligamentum nuchae + C7
ABOVE: external occipital protuberance superior nuchal line , mastoid process , base of mandible
anterior : symphisis menti thyroid ciricoid Maniburum
below : Maniburm + clavicle + scapule + then to Ligamnrtum nuchae
Continuous with that of opposite side aboce and below hyoid bone
Describe preTracehal fascia
enclosing Thyroid gland attaching it to Trachea
Lying in front of trachea deep to infrahyoid muscles
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above : with Hyoid and oblique line of thyroid and Ciricoid cartilage.
below with Fibrous pericaridum or Adventia of Aortic Arch
imp of Pretracheal fascia ?
Provide slippery surface for free movment of trachea during swallowing
describe carotid sheath
attachments :
above: base of skull
below: adventia of aortic arch
anterior : pretracehal fascia
posterior :prevertebral fascia
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contents divided to 2 division according to level of thyroid cartilage c34
Lower: CCA +IJV+Vagus
Upper : ICA + IJV+Last 4 cranial nerves
Embeded anteriorly loop like ansa cervicalis from c123 veentral rami
Emeded posteriorly
cervical sympathic chain
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why internal and external carotid named like this ?
According to their conituity in carotid sheath
the internal continue so it is interna
the external exit so it is ,,,
Main supply of infrahyoid muscles ?
Ansa cervicalis c123 venetral rami
Fascia coveirng the mucsles of floor of posterio triangle ?
PREVERTEBRAL
pREvertebral Fascia coveing ?
Prevetebral muscles middle scalene
Cevical + Brachial pleuxes
Subclavian artery
nereve roots of cervical and bracical plexus lie …….subcalvian artery ?
Behind
Axillary sheath covers?
Subclavian artery & Brachial plexus
Attachments of Prevertebral Fascia
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Relations of it ?
Anterio carotid sheath
posterior : investing fascia + ligamentum nuchae
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amterior to it lying:
Pharynx +osepohagus
Larynx + trachaea
=Subclavian Vein =
Extent of Prevetrebral fascia
From base of skull extending to superior mediastium
t3.4 joinig anterior longitudinal ligament
Buccopharyngeal fascia covering?
Buccinator +
superior constiructo of pharynx
the space behind is retrophatyngeal space
Retropharyngeal between ?
buccopharyngeal + Prevertebral fascia
exteneding from base of skull down to superior mediatstium bounded from each side by carotid sheath
TB in cervical vertebra casuing ?
Infection spread behind prevertebral fascia may spread :
1-forward to posterio pharyngeal wall
2-lateral : posterior tiragnel
3-inferior : superior mediastiunm
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Infection in retrpharyngeal space
infont of preveterbral fascia
due to infection in retopharyngeal LN then RetroPharyngeal Abscess extending to parameidan palne anteiroly pusing pharynx
or infrerioly Till posterior mediastium
Infection in front of pretracheal fascia leads to ?
Bulging of infection to suprastrenal area
Anterior Mediastium
neck is between ?
Lower border of mandible and
upper border of clavical and suprasternal notch
the …..divding neck into l……&<,,,,,,
Sternocleidomastoid
Anterior + posterior Triangle
Mention boundaries of Posterior Triangle
Post of sternomastoid
ant of trapizus
apex joining of 2 muscles at superior nucal line
base middle 1/3 of clavicle
Mention muscles of floor of post triangle
Scalenus anterior
SLS
Scalenus medius
Levator scapulae
Splenis capits
semispinalis capitis
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covered by prevertebral fascia
mention components of Roof of posterior triagnle
Skin
superficial fascia conating platysma
Cutanuous branches of Cervical pleux
External Jugular vein
Deep investing Fascia
__________________s[fojsfd
brachial pleux between ?
Scalenus anterior & Scalenus medius
spinal acessory pass above …. muscle in post triangle ?
Levator scapular
Muscles in posterior tiangle ?
inferior belly of omohyoid muscle
dividing it into
Occipital + Supraclavicular Triangles