![]() The three key superficial muscles of the neck are the platysma, trapezius, and sternocleidomastoid muscles. This is an Advert - we use these to keep SimpleMed free! If you see something you like, please click on it - it supports the site :) Infections that develop in this space have the ability to extend into the thorax, potentially causing a life-threatening mediastinitis.ĭiagram - A cross-section through the neck, showing the different fascia of the neck outlined in different colours It allows for the formation of the retropharyngeal space, a deep neck space that sits behind the buccopharyngeal fascia. The buccopharyngeal fascia is a small portion of fascia that connects two parts of the pretracheal fascia to form a pocket containing the oesophagus and the trachea. The prevertebral layer of the deep cervical fascia forms a sheath for the vertebral column and muscles associated with it. In the image below, the muscular component is shown in navy blue, and the visceral component is shown in lilac. Its muscular component surrounds the infrahyoids, within its visceral component surrounding the thyroid gland, trachea and oesophagus. It surrounds only the anterior and lateral parts of the neck. The pretracheal layer of the deep cervical fascia is the next layer. On the image below, this layer is shown in orange. It surrounds the neck like a collar and holds within it the sternocleidomastoid and trapezius muscles, and the submandibular and parotid salivary glands. The investing layer of the deep cervical fascia is the most superficial of the three. On the image below, it is not labelled, but would run in the beige coloured soft tissue that surrounds the neck. There is a superficial fascial layer just below the skin, housing the jugular veins, superficial lymph nodes and the platysma muscle. There is one superficial fascia and three deep fascia. Nature has compartmentalised structures using layers of cervical fascia, thin layers of connective tissue that form barriers between structures in the neck. ![]() The neck is the structure from the lower margin of the mandible to the upper border of the clavicle and is the pathway for structures to enter and leave the head. There are numerous vessels, nerves and muscles that are designed to facilitate the many functions of the head and neck. The head and neck regions contain many very complicated structures. ![]()
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