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Creado por reynoldslaura
hace más de 10 años
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Pregunta | Respuesta |
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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