How many spaces does the neck have?

There are 16 fascial spaces of the head and neck region divided into four subtypes. These four subtypes are the fascial spaces of the face, suprahyoid fascial spaces, infrahyoid fascial spaces, and the fascial spaces of the neck.

What are the deep spaces of the neck?

Contents

• suprahyoid neck. parotid space. masticator space, including or contiguous with the buccal space.
• suprahyoid and infrahyoid neck. carotid space (or poststyloid parapharyngeal space in the suprahyoid neck, carotid sheath in the infrahyoid neck 7)
• infrahyoid neck. anterior cervical space.

What is suprahyoid neck?

The suprahyoid neck represents the deep core tissues posterior to the sinonasal and oral cavity areas. It contains 12 distinct spaces defined by the layers of the deep cervical fascia (Fig. 8.1). The pharyngeal mucosal, retropharyngeal, danger, and perivertebral are midline nonpaired spaces.

What is the visceral space?

The visceral space is a neck area spanning from the hyoid bone level to the mediastinum, within the middle layer of the deep cervical fascia, and containing the thyroid and parathyroid glands, hypopharynx, larynx, trachea, oesophagus and paraesophageal lymph nodes.

Which are Infrahyoid muscles?

Infrahyoid muscles are also known as “strap muscles” which connect hyoid, sternum, clavicle and scapula. They are located below the hyoid bone on the anterolateral surface of the thyroid gland and are involved in movements of the hyoid bone and thyroid cartilage during vocalization, swallowing and mastication.

What is danger space in neck?

The danger space is a deep compartment of the head and neck located behind the true retropharyngeal space, extending from the skull base to the mediastinum.

What is pretracheal space?

The pretracheal (ie, anterior visceral) space is enclosed by the visceral division of the middle layer of the deep cervical fascia and lies immediately anterior to the trachea. It extends from the thyroid cartilage to the superior mediastinum.

What is Infrahyoid neck?

The infrahyoid region of the neck is located below the hyoid bone and contains the visceral, anterior cervical, posterior cervical, carotid, retropharyngeal, and perivertebral spaces. Some of these spaces are confined to the infrahyoid region; others continue into the suprahyoid region of the neck and the mediastinum.

What does the Infrahyoid do?