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What is located in the infratemporal fossa?

What is located in the infratemporal fossa?

The infratemporal fossa is associated with the muscles of mastication. The medial and lateral pterygoids are located within the fossa itself, whilst the masseter and temporalis muscles insert and originate into the borders of the fossa.

What nerve passes through the infratemporal fossa?

Buccal Nerve From the Mandibular Nerve The mandibular nerve enters the infratemporal fossa and passes through the foramen ovale in the sphenoid bone, and divides at that point into a smaller anterior and a larger posterior trunk. The main trunk gives off two branches at this point.

Which muscle occupies most of the infratemporal fossa?

lateral pterygoid muscle
The lateral pterygoid muscle contains two heads and occupies most of the area in the superior infratemporal fossa.

What is Infratemporal?

: situated below the temporal fossa.

What muscles are in infratemporal fossa?

Contents

  • medial and lateral pterygoid muscles.
  • temporalis muscle.
  • maxillary artery and branches.
  • pterygoid venous plexus.
  • mandibular nerve and its branches (including lingual nerve)
  • chorda tympani nerve.
  • posterior superior alveolar nerve of maxillary nerve.

What is a fossa in anatomy?

Fossa – A shallow depression in the bone surface. Here it may receive another articulating bone or act to support brain structures. Examples include trochlear fossa, posterior, middle, and anterior cranial fossa.

Which branch of facial nerve is the content of infratemporal fossa?

Mandibular nerve which is the third branch of the trigeminal nerve (CN V3), also known as the “inferior maxillary nerve” or nervus mandibularis, enters infratemporal fossa from middle cranial fossa through foramen ovale.

What does Pterygoid mean?

: of, relating to, or lying in the region of the inferior part of the sphenoid bone of the vertebrate skull.

What do the temporal fossa and infratemporal fossa contain?

superiorly, by the greater wing of the sphenoid below the infratemporal crest, and by the under surface of the temporal squama, containing the foramen ovale, which transmits the mandibular branch of the trigeminal nerve, and the foramen spinosum, which transmits the middle meningeal artery.

Is the parotid gland in the infratemporal fossa?

The Parotid Region of the Face. The parotid region is actually part of the neck but it extends into the facial region as well. It also must be studied before the infratemporal region can be examined. The parotid gland is a superficial structure located in the upper neck above the posterior belly of the digastric muscle …

What does fossa stand for?

Anatomical terminology In anatomy, a fossa (/ˈfɒsə/; plural fossae (/ˈfɒsiː/ or /ˈfɒsaɪ/); from the Latin “fossa”, ditch or trench) is a depression or hollow, usually in a bone, such as the hypophyseal fossa (the depression in the sphenoid bone).

Is the infratemporal fossa below the temporal fossa?

Infratemporal Fossa. The infratemporal fossa is a space that exists below the temporal fossa. When seen on the skull without the soft tissues, these two anatomical landmarks can be seen to communicate with one another.

Where does vascular supply come from in the infratemporal fossa?

The infratemporal fossa is a space that exists below the temporal fossa. Its borders include: The vascular supply comes from the maxillary artery, while the innervation is via the branches of the mandibular and maxillary nerves. Infratemporal fossa: want to learn more about it?

What are the side effects of infratemporal fossa surgery?

These patients present a wide spectrum of swallowing or speech problems including hypernasal or slurred speech, nasal regurgitation, dysphagia, aspiration, and dysphonia (CNs IX, X, XII). Aspiration due to lower cranial neuropathies has life-threatening consequences.

How to treat an infratemporal fossa in the scalp?

Shave the scalp, following the planned incision line (eg, bicoronal), and infiltrate the incision line with a solution of lidocaine and epinephrine (1:100,000-1:400,000). For endoscopic approaches, position the head in a 3-pin fixation system and use a surgical navigation system.