𝐍𝐨𝐫𝐦𝐚 𝐥𝐚𝐭𝐞𝐫𝐚𝐥𝐢𝐬 (𝐁𝐨𝐧𝐞𝐬 𝐚𝐧𝐝 𝐟𝐨𝐫𝐚𝐦𝐢𝐧𝐚)

This video describes the bones, features, and foramina of norma lateralis (lateral view of the skull). 𝐒𝐡𝐨𝐫𝐭 𝐪𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬: 1. What is the weakest bony point on the norma lateralis, and why? 2. What is the commonest cause of extradural hemorrhage? 3. What is the surface anatomy of the pterion? 𝐌𝐂𝐐: 1. What is the anatomical landmark on the lateral aspect of the skull formed at the junction of the occipital bone, the temporal bone, and the parietal bone A. Pterion B. Asterion C. Lambda D. Bregma 2. What is the origin of the posterior belly of the digastric muscle? A. Mastoid process B. Mastoid notch C. Digastric notch D. Hyoid bone 3. What is the nerve supply of the stylohyoid muscle? A. Mandibular nerve B. Maxillary nerve C. Inferior alveolar nerve D. Facial nerve 4. A 10-year-old boy was kicked in the left temporal region during a soccer game. He complained of a headache and became dizzy, so he went to the hospital. CT scan revealed a biconvex hyperdense collection of blood subjacent to the pterion. What is the source of the blood? A. Facial artery B. Middle meningeal artery C. Posterior auricular artery D. Superficial temporal artery 5. The maxillary artery passes through which of the following regions? A. Infratemporal fossa B. Temporal fossa C. Submandibular triangle D. Carotid sheath 6. Which of the following is a branch of the first (mandibular) part of the maxillary artery? A. Deep temporal artery B. Middle meningeal artery C. Infraorbital artery D. Buccal artery 7. The pterygoid venous plexus communicates with the facial vein via which of the following? A. Retromandibular vein B. External jugular vein C. Deep facial vein D. Anterior jugular vein 8. The maxillary artery enters the pterygopalatine fossa via which fissure? A. Pterygomaxillary fissure B. Sphenopalatine foramen C. Foramen rotundum D. Inferior orbital fissure 9. Which structure is closely related to the maxillary nerve within the pterygopalatine fossa? A. Chorda tympani B. Pterygopalatine ganglion C. Submandibular ganglion D. Trigeminal ganglion 10. Which foramen transmits the maxillary nerve from the middle cranial fossa to the pterygopalatine fossa? A. Foramen ovale B. Foramen rotundum C. Foramen spinosum D. Inferior orbital fissure 11. The maxillary nerve gives rise to which of the following branches in the pterygopalatine fossa? A. Buccal nerve B. Infraorbital nerve C. Lingual nerve D. Inferior alveolar nerve 12. Which of the following arteries is the terminal branch of the external carotid artery? A. Facial artery B. Lingual artery C. Maxillary artery D. Superficial temporal artery 😂💞 🤣 𝓦𝓪𝓲𝓽𝓲𝓷𝓰 𝓕𝓸𝓻 𝓨𝓸𝓾𝓻 𝓐𝓷𝓼𝔀𝓮𝓻 😂💞 🤣 𝐀𝐧𝐬𝐰𝐞𝐫𝐬 𝐭𝐨 𝐌𝐂𝐐𝐬: 👇😀 𝐅𝐨𝐫 𝐜𝐨𝐧𝐭𝐚𝐜𝐭: 📢 📌𝐄𝐦𝐚𝐢𝐥: aymn222@hotmail.com 📌𝐅𝐚𝐜𝐞𝐛𝐨𝐨𝐤 𝐩𝐞𝐫𝐬𝐨𝐧𝐚𝐥 𝐚𝐜𝐜𝐨𝐮𝐧𝐭:   / drayman.khanfour   📌𝐅𝐚𝐜𝐞𝐛𝐨𝐨𝐤 𝐠𝐫𝐨𝐮𝐩:   / 314015989895733   📌𝐓𝐞𝐥𝐞𝐠𝐫𝐚𝐦 𝐜𝐡𝐚𝐧𝐧𝐞𝐥: https://t.me/+k-LcyYc-0WsyNDg0 📌𝐓𝐞𝐥𝐞𝐠𝐫𝐚𝐦 𝐠𝐫𝐨𝐮𝐩: https://t.me/+S-dZx8Sf-LBiOWE0 📌𝐈𝐧𝐬𝐭𝐚𝐠𝐫𝐚𝐦:   / dr_aymn   📌𝐘𝐨𝐮𝐓𝐮𝐛𝐞 𝐜𝐡𝐚𝐧𝐧𝐞𝐥 𝐰𝐞𝐛𝐬𝐢𝐭𝐞 𝐥𝐢𝐧𝐤:    / @dr.ayman_khanfour   📞𝐌𝐨𝐛𝐢𝐥𝐞 (𝐚𝐧𝐝 𝐖𝐡𝐚𝐭𝐬𝐀𝐩𝐩): +20 1223815866 𝐇𝐚𝐬𝐡𝐭𝐚𝐠: 🔍 #norma_lateralis #foramina_of_skull #pterion #extradural_hemorrhage