Face

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Year 2 anatomy Flashcards on Face, created by reynoldslaura on 15/12/2013.
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Flashcards by reynoldslaura, updated more than 1 year ago
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Created by reynoldslaura over 10 years ago
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Question Answer
What nerve supplies the mucosa of the maxillary sinus? Infra-orbital nerve - from (CNV2)
What nerve supplies the mucosa of the frontal sinus? Supra-orbital nerve - from (CNV1)
What three cutaneous nerves arise from the mandibular nerve (CNV3)? -Auriculotemporal -Buccal -Mental
What three cutaneous nerves are derived from the maxillary nerve (CNV2) - Infra-orbital -zygomaticofacial -zygomaticotemporal
What are the five main cutaneous brances of the ophthalmic nerve? (CNV1) - Supra-orbital -Supra-trochlear -Lacrimal -Infratrochlear -External nasal
What is the action of the buccinator muscle? Active in smiling, keeps cheek taut when chewing and works with orbicularis oris and tongue to keep food between teeth during chewing
What is the action of orbicularis oris? Tonus closes the mouth, compresses and protrudes lips for kissing and resists distention when blowing
What is the action of orbicularis oculi? -Palpebral part closes eyelids gently -Orbital part does so tightly (winking)
What is the action of platysma? Depresses mandible against resistance and tenses the skin of inferior face and neck - conveying tension and stress
What nerve supplies all the muscles of facial expression? Facial nerve (CN VII)
What nerves of the trigeminal provide sensory innervation to the face?
What nerve supplies the muscles of mastication? Mandibular nerve (CNV3)
What are the four muscles of mastication? Lateral pterygoid, medial pterygoid, temporalis and masseter
How many parts are there to the maxillary artery and what feature divides it into these parts? There are three parts to the maxillary artery - created by the lateral pterygoid muscle
What artery supplies the lining of the maxillary sinus? Posterior superior alveolar artery (a branch of the third part of the maxillary artery)
Where precisely does the middle meningeal artery originate from? The first branch of the maxillary artery (branch of the external carotid)
What is the arterial supply to the sphenoidal sinus? Pharyngeal artery (a branch of the third part of the maxillary artery)
What are the four branches of the 2nd part of the maxillary artery? Deep temporal arteries, pterygoid arteries, masseteric artery and the buccal artery
What are the two terminal branches of the external carotid? Superficial temporal and maxillary arteries
What are the terminal branches of the vertebral arteries? The two vertebral arteries combine to form the basilar artery which divides into two posterior cerebral arteries
What are the terminal branches of the internal carotid artery? The anterior and middle cerebral arteries
What is the terminal branch of the maxillary artery? The sphenopalatine artery which supplies the lateral nasal wall, the nasal septum and the adjacent paranasal sinuses
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