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Questions and Answers
Which nerve is responsible for supplying taste to the anterior 2/3rds of the tongue?
What is the function of the parotid gland?
Which artery supplies the face with blood?
Which vein drains into the external jugular vein and eventually the subclavian vein?
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Which muscle is responsible for raising the eyebrows?
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Which artery is the largest branch of the external carotid artery and can be found within the infratemporal fossa?
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What is the most important branch of the maxillary artery clinically?
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Why is the middle meningeal artery of clinical importance?
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Where is the pterygoid plexus located?
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Which nerve supplies the muscles of mastication?
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Which of the following structures does the auriculotemporal branch of the mandibular nerve supply?
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Where does the inferior alveolar nerve enter the mandible?
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What is the primary method of treatment for parotid gland neoplasms?
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Which cranial nerve has a close relation to the parotid gland?
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What structures pass through the infratemporal fossa and could be affected by a tumour?
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Which cranial nerves are involved in sensory and motor innervation to the face?
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Which nerve supplies the muscles of mastication?
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Which gland is located in the face and is innervated by the facial nerve?
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Which muscles are involved in facial expression?
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What will you study in the temporal and infratemporal fossa?
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Which bones of the facial skeleton were damaged in the injury?
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What other important structures of facial anatomy may have been damaged during this injury?
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What is causing the streaking seen on the non-contrast CT?
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Which cranial nerves are involved in the sensory and motor innervation of the face?
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Which muscles are involved in mastication and what is their nerve supply?
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Which muscle is responsible for elevation and side-to-side movement of the mandible?
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Which muscle of mastication has its origin on the zygomatic bone and zygomatic arch?
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What is the space deep and inferior to the zygomatic arch, deep to the ramus of the mandible, and posterior to the maxilla called?
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Which muscle of mastication has two heads, with the deep head originating from the medial surface of the lateral pterygoid plate of the sphenoid bone, and the superficial head arising from the maxilla?
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Which muscle of mastication has two heads, with the upper head arising on the roof of the fossa and the lower head originating from the lateral surface of the lateral pterygoid plate?
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Study Notes
Nerves and Blood Supply
- The chorda tympani nerve is responsible for supplying taste to the anterior 2/3rds of the tongue.
- The facial artery supplies the face with blood.
- The posterior auricular vein drains into the external jugular vein and eventually the subclavian vein.
Parotid Gland
- The parotid gland is responsible for producing saliva.
- The parotid gland is innervated by the facial nerve.
- The primary method of treatment for parotid gland neoplasms is surgery.
Arteries
- The maxillary artery is the largest branch of the external carotid artery and can be found within the infratemporal fossa.
- The middle meningeal artery is a branch of the maxillary artery and is of clinical importance due to its potential for bleeding in cases of skull fracture.
- The infraorbital artery is the most important branch of the maxillary artery clinically.
Muscles
- The temporalis muscle is responsible for raising the eyebrows.
- The muscles of mastication (temporalis, masseter, medial pterygoid, and lateral pterygoid) are responsible for elevating and moving the mandible.
- The muscles of mastication are supplied by the mandibular nerve.
- The lateral pterygoid muscle is responsible for elevation and side-to-side movement of the mandible.
- The masseter muscle has its origin on the zygomatic bone and zygomatic arch.
- The medial pterygoid muscle has two heads, with the deep head originating from the medial surface of the lateral pterygoid plate of the sphenoid bone, and the superficial head arising from the maxilla.
- The lateral pterygoid muscle has two heads, with the upper head arising on the roof of the fossa and the lower head originating from the lateral surface of the lateral pterygoid plate.
Other Structures
- The pterygoid plexus is located in the infratemporal fossa.
- The auriculotemporal branch of the mandibular nerve supplies the parotid gland and the skin of the ear.
- The inferior alveolar nerve enters the mandible through the mandibular foramen.
- The infratemporal fossa contains the maxillary artery, mandibular nerve, and pterygoid muscles.
- The facial skeleton consists of the zygomatic bone, zygomatic arch, and ramus of the mandible.
- The temporal and infratemporal fossa are important for studying the anatomy of the face and jaw.
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Description
Test your knowledge on the anatomy of the face, temporal and infratemporal fossa, including the muscles and arteries involved. Learn about the horizontal orientation of muscle fibers and the significance of the maxillary artery.
