Investing layer of deep cervical fascia

Investing layer of deep cervical fascia.
Section of the neck at about the level of the sixth cervical vertebra. Showing the arrangement of the fascia coli.
Details
Identifiers
Latin	Lamina superficialis fasciae cervicalis
TA	A04.2.05.002
FMA	57805
*Anatomical terminology* [edit on Wikidata]

The Investing layer of deep cervical fascia is the most superficial part of the deep cervical fascia, and it encloses the whole neck.

Position

It surrounds the neck like a collar, it splits around the sternocleidomastoid muscles and the trapezius muscles. Posteriorly (towards the back of the neck), it blends with ligamentum nuchae.

Anteriorly, it is attached to the hyoid bone. Superiorly, it attaches to the lower border of mandible, to the mastoid process, superior nuchal line and the external occipital protuberance.

Between the angle of the mandible and the tip of mastoid process it is strong and splits to enclose the parotid gland. The superficial parts extend superiorly as the parotidomassetric fascia and reaches the zygomatic process. The deepest part extends to the base of the skull, between the temporal styloid process and the angle of mandible is thickened to form the stylomandibular ligament. Inferiorly, the investing layer of deep cervical fascia is attached to the spine and acromion of the scapula, the clavicle with trapezius muscle, the clavicle and manubrium of the sternum with sternomastoid muscle.

It is considered by some sources to be incomplete^[1] or nonexistent.^[2]

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

Muscles of the neck

Cervical	Platysma Sternocleidomastoid Longus capitis Longus colli Scalene anterior middle posterior Rectus capitis anterior muscle Rectus capitis lateralis muscle

Suboccipital	Rectus capitis posterior major minor Obliquus capitis inferior superior

Suprahyoid	Mylohyoid Stylohyoid Digastric Geniohyoid

Infrahyoid	Thyrohyoid Sternohyoid Sternothyroid Omohyoid

Pharynx	Pharyngeal constrictor superior middle inferior Stylopharyngeus Salpingopharyngeus

Larynx	Cricothyroid Cricoarytenoid posterior lateral Arytenoid oblique arytenoid aryepiglottic transverse arytenoid Thyroarytenoid vocal thyroepiglottic

Trachea	Trachealis

Fasciae	Deep cervical fascia Pretracheal fascia Prevertebral fascia Investing layer Carotid sheath Alar fascia Palatine aponeurosis Buccopharyngeal fascia Pharyngobasilar fascia Pharyngeal raphe

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