Cervical Fascia Flashcards
Covers the platysma
Superficial Cervical Fascia
Components of Deep Cervical Fascia
Superficial/Investing Layer
Pretracheal Fascia
Prevertebral Fascia
Encircles the deeper parts oft he neck
Splits to enclose the trapezius and SCM
Encloses the SUBMANDIBULAR and PAROTID glands
Superficial/Investing Layer
Thin layer that is attached superiorly to the thyroid and cricoid cartilages and inferiorly to the pericardium
Surrounds the LARYNX and TRACHEA
Encloses the THYROID and PARATHYROID glands
Forms a FALSE CAPSULE of the thyroid gland
Pretracheal layer
Thick layer that passes like a septum across the neck behind the Pharynx and Esophagus and in front of the Prevertebral muscles
and the vertebral column
Forms the FASCIAL FLOOR of the POSTERIOR TRIANGLE
Prevertebral layer
Local condensation of the Prevertebral, Pretracheal and Investing layers of the deep cervical fascia
LATERAL – Internal Jugular Vein
MEDIAL – Common and Internal Carotid artery
POSTERIOR – Vagus nerve
Carotid Sheath
Extends from skull base down to superior mediastinum
Limited inferiorly by the fusion of alar fascia to the visceral layer
RETROPHARYNGEAL SPACE
Forms further subdivision of the retropharyngeal space
ALAR FASCIA
Located b/w the alar fascia and prevertebral fascia
Extends from the skull base down to posterior mediastinum
DANGER SPACE
Infection of the floor of mouth underneath the tongue
Most cases derived from dental infections, especially the 2nd and 3rd molars.
Ludwig Angina
tender swelling in the SUBMANDIBULAR area
Contraction or shortening of the SCM muscle
Due to injury to the SCM or avulsion of the Accessory nerve at the time of birth
TORTICOLLIS/WRYNECK
SCM is SHORTENED on the AFFECTED SIDE leading to the HEAD being ROTATED towards the CONTRALATERAL
SIDE
