What is the pterygoid space?
Anatomical terminology The pterygomandibular space is a fascial space of the head and neck (sometimes also termed fascial spaces or tissue spaces). It is a potential space in the head and is paired on each side. It is located between the medial pterygoid muscle and the medial surface of the ramus of the mandible.
What does the pterygomandibular space contain?
General anatomy of the pterygomandibular space Of particular importance to local anaesthesia, the pterygomandibular space contains the IAN, artery and vein, the lingual nerve (LN), the nerve to mylohyoid, the sphenomandibular ligament and fascia (Fig 1).
Where is Masticator space?
The masticator space is situated laterally to the medial pterygoid fascia and medially to the masseter muscle. It is bounded by the sphenoid bone, the posterior aspect of the mandible, and the zygomatic arch. It lies inferiorly to the temporal space and is anterolateral to the parapharyngeal space.
What is a pterygomandibular space?
The pterygomandibular space is the inferomedial subcompartment of the masticator space located between the mandible and pterygoid muscles.
What is the buccal space?
The buccal spaces are paired fat-containing spaces on each side of the face forming cheeks. Each space is enveloped by the superficial (investing) layer of the deep cervical fascia. It is located between the buccinator and platysma muscles, therefore it is only a small potential space with limited contents.
How do you detect pterygomandibular raphe?
It is a paired structure, with one on each side of the mouth. Superiorly, it is attached to the pterygoid hamulus of the medial pterygoid plate of the sphenoid bone. Inferiorly, it is attached to the posterior end of the mylohyoid line of the mandible. Its medial surface is covered by the mucous membrane of the mouth.
What is the Lingula of mandible?
The lingula of the mandible (also known as Spix spine) is a triangular bony projection or ridge on the medial surface of the ramus of the mandible, immediately superior to the mandibular foramen. It provides attachment for the sphenomandibular ligament 1,2.
What is parotid space?
The parotid space is one of the deep compartments of the head and neck and, as the name suggests, is mostly filled with the parotid gland. It is the most lateral major suprahyoid neck space.
What are masticatory spaces?
The masticator space is the deep compartment of the head and neck that contains the muscles of mastication.
What is the Infratemporal fossa?
The infratemporal fossa is a complex space of the face that lies posterolateral to the maxillary sinus and many important nerves and vessels traverse it. It lies below the skull base, between the pharyngeal sidewall and ramus of the mandible.
What are the anatomical boundaries for buccal space?
The buccal space’s (Fig. 1) anatomical boundaries are the buccinator muscle medially, the superficial layer of the deep cervical fascia and the muscles of facial expression laterally and anteriorly, and the masseter muscle, mandible, lateral and medial pterygoid muscles and the parotid gland posteriorly (1).
What are the boundaries of the pterygomandibular space?
The boundaries of each pterygomandibular space are: the posterior border of the buccal space anteriorly. the parotid gland posteriorly. the lateral pterygoid muscle superiorly. the inferior border of the mandible (lingual surface) inferiorly. the medial pterygoid muscle medially (the space is superficial to medial pterygoid)
Where is the lateral pterygoid located?
Lateral pterygoid is located deep to the temporalis and masseter muscles, spanning between the sphenoid bone and temporomandibular joint. Its muscle belly is separated by a small horizontal fissure into two heads; superior (upper) and inferior (lower). The superior head is formed by the most superomedial fibers of the muscle.
What is the best way to examine the pterygomandibular space?
Gross dissection has been the most common method of examining the pterygomandibular space and it provides arguably the most useful insights into how soft tissue structures relate to the osteology of the skull in three dimensions.
What are the divisions of the pterygoids?
mandibular division nervus spinosus nerve to medial pterygoid anterior division deep temporal nerves lateral pterygoid nerves masseteric nerve buccal nerve posterior division auriculotemporal nerve lingual nerve inferior alveolar nerve nerve to mylohyoid incisive nerve mental nerve abducens nerve (CN VI) facial nerve (CN VII) chorda tympani