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Fascia consists of _______, lies _______ and surrounds the _________
- layer upon layer of fibrous connective tissue
- underneath the skin
- muscles, bones, vessels, nerves, organs, and other structures
-
potential spaces are termed _______ or ________
- fascial spaces
- fascial planes
-
The fasciae can be divided into either the ________ or ______
superficial fasciae or the deep fasciae
-
the layers of deep fascia cover the
bones, muscles, vessels, and nerves
-
The layers of superficial fasciae of the body do not usually enclose _______, except for the _________ that encloses the _______
- muscles
- superficial fasciae of the face and neck
- muscles of facial expression
-
The superficial cervical fascia of the neck contains the
platysma muscle, which covers most of the anterior cervical triangle
-
The layers of deep fasciae of the face and jaws are divided into the
- the temporal
- the masseteric-parotid
- the pterygoid
-
The temporal fascia covers the
temporalis muscle and structures superior to the zygomatic arch
-
The masseteric-parotid fascia covers the ________ surrounding the _________
- masseter muscle and structures inferior to the zygomatic arch
- parotid salivary gland
-
The pterygoid fascia is located on
the medial surface of the medial pterygoid muscle
-
The layers of deep cervical fascia include the
the investing fascia, the carotid sheath, the visceral fascia, and the vertebral fascia
-
The Investing Fascia is the
most external layer of deep cervical fascia
-
The Carotid Sheath contains the
internal carotid and common carotid arteries and the internal jugular vein as well as CN X (vagus nerve)
-
Visceral Fascia surrounds the
air and food passageway including the trachea, esophagus, and thyroid gland
-
Nearer to the skull (by the pharynx) the visceral fascial layer is known as the
buccopharyngeal fascia
-
Vertebral Fascia is the _________ and covers the ___________
- deepest layers of the deep cervical fascia
- vertebrae, spinal column, and associated muscles.
-
Clinically, fasciae are extremely important because these layers ____________
often limit the spread of infection and neoplastic disease
-
the fascial spaces of the head and neck can allow the
spread of infection from the teeth and associated oral tissue
-
Cellulitis
diffuse inflammation of soft tissue spaces
-
The vestibular Space of the Maxilla communicates with the
maxillary molar teeth and periodontium and thus can become involved with infections of this tissue
-
The canine space is located
superior to the upper lip and lateral to the apex of the maxillary canine
-
The buccal space is the fascial space formed
between the buccinator muscle (actually the buccopharyngeal fascia) and masseter muscle
-
If the Buccal space is involved in infection the source is usually
either a maxillary or mandibular molar or premolar
-
The parotid space contains the
the entire parotid salivary gland but also much of the seventh cranial or facial nerve and a part of the external carotid artery and retromandibular vein
-
The masticator space is a general term used to include the
entire area of the mandible and muscles of mastication
-
The submental space is located in the
midline between the mandibular symphysis and hyoid bone
-
The submandibular space is located
lateral and posterior to the submental space on each side of the jaws
-
If the submandibular space is involved the source is either
mandibular molar or premolar with possible loss of the firmness of the inferior border of the mandible upon palpation.
-
The sublingual space is located
deep to the oral mucosa, thus making this tissue its roof
-
_______ form the medial boundary of the sublingual space, and the _______ forms the sublingual space’s lateral wall
- The tongue and its intrinsic muscles
- mandible
-
The cervical spaces connect with the _______ allowing ________
spaces of the face and jaws with those of the thorax, allowing dental or odontogenic infection to spread to vital organs such as the heart and lungs as well as the brain
-
The cervical spaces include the
parapharyngeal, retrophryngeal, and previsceral spaces
-
Dental or odontogenic infections can become serious when they reach the ______ space because of its connection to the _______
- parapharyngeal
- retropharyngeal space
-
the retropharyngeal space can also be known as the _______
danger space of the neck by dental professionals
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