Deep Cervical Fascia Flashcards
Components of Deep Cervical Fascia?
Investing Layer
Pre-Tracheal Layer
Pre-Vertebral Layer
Carotid Sheath
Investing Layer
Also called …
Superficial Layer
Investing Layer
Location
Surround Neck
Deep to Skin, Superficial Fascia and Platysma
Investing Layer
Anterior Attachments
Symphysis Menti of Mandible
Hyoid Bone
Investing Layer
Posterior Attachments
Spine of Cervical Vertebra 7
Ligamentum Nuchae
Investing Layer
Superior Attachments
External Occipital Protuberance
Superior Nuchal Line
Mastoid Process
Base of Mandible
Investing Layer
Inferior Attachments
Spine of Scapula
Acromion Process
Clavicle
Manubrium Sterni
Investing Layer
Followed Horizontally
Between Anterior and Posterior Attachments
Splits to enclose Sternomastoid and Trapezius
Forms Roof of Anterior and Posterior Triangles
Investing Layer
Followed Superiorly
Splits to enclose Parotid and Submandibular Glands
Condenses to form Stylomandibular Ligament
Investing Layer
Followed Inferiorly
Above Clavicle: Encloses Inferior Belly of Omohyoid
Above Sternum: Encloses Lower End of Anterior Jugular Vein
Pretracheal Fascia
Also called …
Middle Layer
Pretracheal Fascia
Location
Deep to Infrahyoid
Anterior to Visceral Compartment of Neck (containing Trachea and Esophagus)
Pretracheal Fascia
Horizontal Pathway
Extends from Front of one Carotid Sheath to Opposite Carotid Sheath
Splits of enclose Thyroid Gland
Pretracheal Fascia
Ligament of Berry …
… binds Thyroid Gland to Larynx
Pretracheal Fascia
Function of Ligament of Berry
Prevents Thyroid from Slipping into Thorax
Causes Thyroid Gland to move up and down with Deglutition
Pretracheal Fascia
Where is the Buccopharyngeal Fascia?
Posterior to the Thyroid Gland
The Buccopharyngeal Fascia is weak
Pretracheal Fascia
Thyroid Swelling of Buccopharyngeal Fascia causes …
compression of Esophagus and Trachea
Pretracheal Fascia
Vertical Pathway
Superior: Attached to Hyoid Bone, Oblique Line of Thyroid Cartilage and Cricoid Cartilage
Inferior: Passes in front of Trachea to blend with Arch of Aorta
Prevertebral Fascia
Also called …
Deep Layer
Prevertebral Fascia
What structures does the Prevertebral Fascia form?
Tubular Sheath: Covers Vertebral Column and its Muscles
Floor of Posterior Triangle
Prevertebral Fascia
Location
Anterior to Prevertebral Muscles
Posterior to Visceral Compartment of Neck
Prevertebral Fascia
Anterior Extension is called …
Alar Fascia
Prevertebral Fascia
Vertical Extent
From Base of Skull to Superior Mediastinum where it blends with T3
Prevertebral Fascia
Retropharyngeal Space location
Between Buccopharyngeal Fascia Anteriorly and Alar Fascia Posteriorly
Prevertebral Fascia
How is the Retropharyngeal Space sealed inferiorly?
Fasciae sealed together at Level of T2
Prevents downward spread of Abcess
Prevertebral Fascia
What causes Abcess of Retropharyngeal Space?
Transferred infection from Ear or Sinus
Prevertebral Fascia
What does Abcess of Retropharyngeal Space cause?
Stridor due to Compression of Trachea
Prevertebral Fascia
Danger Space location
Loose Connective Tissue between Alar Fascia and Prevertebral Fascia
Extends to T12 and Diaphragm
Prevertebral Fascia
Why is the Danger Space dangerous?
At its Inferior Boundary, it communicates with Peritoneum
In case of infection - could cause Peritonitis
Prevertebral Fascia
What can cause infection in the Danger Space?
Posterior Rupture of Retropharyngeal Abcess
Carotid Sheath
What structures does it surround?
Common Carotid
Internal Carotid
Internal Jugular Vein
Vagus Nerve
