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 are the deep spaces of the neck?


  • 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 posterior cervical space?

The posterior cervical space is defined as the area in the posterolateral portion of the neck from the skull base to the clavicles deep to the sternomastoid and trapezius muscles but superficial to the prevertebral space. Its principal contents are fat, the spinal accessory nerve, and lymph nodes.

What are the compartment of the neck?

The structures of the human neck are anatomically grouped into four compartments; vertebral, visceral and two vascular compartments.

What is the danger space of the neck?

The danger space or alar space, is a region of the neck. The common name originates from the risk that an infection in this space can spread directly to the thorax, and, due to being a space continuous on the left and right, can furthermore allow infection to spread easily to either side.

Which nerve supplies suprahyoid muscles?

. The mylohyoid and the anterior belly of digastric muscles receive innervation by mylohyoid nerve branch from the inferior alveolar branch of the mandibular nerve (the V3 branch of cranial nerve V). The stylohyoid and posterior belly of digastric muscles’ nerve supply is by the facial nerve (VII cranial nerve).

What are the most common complications in case of deep neck infections?

Life-threatening complications include: descending mediastinitis, septic shock, upper airway obstruction, jugular vein thrombosis, venous septic embolus, carotid artery pseudoaneurysm or rupture, pleural empyema, pericarditis, pericardial effusion, aortopulmonary fistula, adult respiratory distress syndrome, acute …

Where is the posterior neck located?

The posterior triangle is crossed, about 2.5 cm above the clavicle, by the inferior belly of the omohyoid muscle, which divides the space into two triangles: an upper or occipital triangle. a lower or subclavian triangle (or supraclavicular triangle)

What is contained in the posterior triangle of the neck?

The posterior triangle contains level 5 lymph node chains. These include spinal accessory and transverse cervical nodes. Depending on the location of the nodes above or below the accessory nerve, they are sub grouped as level 5a (above) or level 5b (below).

What is the base of your neck called?

What is the cervical spine? Your cervical spine — the neck area of your spine — consists of seven stacked bones called vertebrae. The first two vertebrae of your cervical spine are unique in shape and function. Your first vertebra (C1), also called the atlas, is a ring-shaped bone that begins at the base of your skull.

What is the clinical significance of the Interfascial spaces of the neck?

Clinical notes

The most significant clinical importance of the cervical fascia is prevention of the spread of pus and debris. However, this function is mainly restricted to the deep cervical fascia which lies closer to the neck viscera and muscles.

How do you diagnose a deep neck infection?

Computed tomography WITH IV contrast is the imaging modality of choice for the diagnosis of deep neck space infections.

How do you know if you have a deep neck infection?

You will have a red or swollen throat, neck pain or stiffness, a bulge at the back or the throat, and ear pain. Body aches or chills and difficulties swallowing or breathing can also be a symptom. If you’re having any one of these symptoms you may want to consult a doctor for treatment.

Why do suprahyoid muscles get tight?

Suprahyoid Muscles: Tight Muscles Under Chin – YouTube

Why do my suprahyoid muscles hurt?

A common cause of TMD: Suprahyoid muscle clenching – YouTube

How do you treat a deep neck infection?

The treatment of deep neck infections include appropriate antibiotics based upon the likely microbiology of the infection along with drainage of the abscess collection, if present, via either aspiration or surgical drainage.

What is the back of the neck called?

cervical spine
Your cervical spine is the neck region of your spinal column or backbone. It consists of your first seven bones (C1-C7). Other structures in or around your cervical spine are your intervertebral disks, spinal cord and nerves, muscles, tendons and ligaments.

Why are triangles of the neck important?

The triangles of the neck are important because of their contents, as they house all the neck structures, including glands, nerves, vessels and lymph nodes.

What is another name for the posterior triangle of the neck?

lateral cervical region
The posterior triangle (or lateral cervical region) is a region of the neck.

What nerves are affected by C1 and C2?

Nerves in the cervical spine
They’re labeled C1 through C8. They stimulate muscle movement in your neck, shoulder, arm and hand, and provide sensation. Cervical nerves C1, C2 and C3 control your forward, backward and side head and neck movements.

What nerves are affected by C5 and C6?

Additionally, from C5 and C6, the axillary nerve supplies the motor function of the deltoid and teres minor, as well as the sensory aspect of the overlying skin, the superior lateral cutaneous nerve of the arm, and the skin of the lateral shoulder and arm.

What are the 4 types of cervical layers?

By this classification system, the deep cervical fascia of the neck can subdivide into the investing layer, pretracheal and prevertebral layers, also known as the external, middle and deep layers respectively. The pretracheal, or middle layer, can be further subdivided into the muscular and visceral divisions.

What are the 3 layers of fascia?


  • Classification System.
  • Superficial Fascia.
  • Visceral Fascia.
  • Parietal Fascia.

Which antibiotic is best for neck infection?

Penicillin G is the drug of choice for those infections caused by streptococci, and nonpenicillinase-producing staphylococci, which represent the majority of aerobic organisms in deep neck abscess.

How do you relax the suprahyoid muscles?

How to RELEASE TENSION UNDER THE CHIN (Suprahyoid Muscles …