Head — Flashcards

Flashcard 81: The **hiatus semilunaris** opens into a 3D space called the _____, which is bounded medially by the uncinate process and laterally by the lamina papyracea.

Answer: ethmoidal infundibulum

Extra: The ethmoidal infundibulum is a channel in the ethmoid bone that receives drainage from the anterior ethmoidal air cells and often the frontal sinus (via the frontonasal duct). Its anterior boundary is formed by the junction of the uncinate process with the lacrimal bone and the frontal process of the maxilla.

Flashcard 82: Structures passing through the **anterior compartment** of the **foramen magnum**: - Odontoid process (Dens) - Apical ligament of the dens - _____ ligament - Alar ligaments - Membrana tectoria

Answer: Vertical (upper) band of cruciate

Extra: The **foramen magnum** is divided into two compartments: 1. **Anterior compartment (Osteo-ligamentous):** Contains the Odontoid process (Dens), Apical ligament of the dens, Vertical (upper) band of the cruciate ligament, Alar ligaments, and Membrana tectoria. 2. **Posterior compartment (Neurovascular):** Contains the Medulla oblongata (and meninges), Vertebral arteries, Spinal roots of the accessory nerve (CN XI), and Anterior/Posterior spinal arteries.

Flashcard 83: _____ palate is supplied by ascending palatine branch of the facial artery, ascending pharyngeal artery and lesser palatine arteries.

Answer: Soft

Flashcard 84: Lymphatics of the tongue:_____ part of anterior 2/3rd of tongue drains into B/L jugulodigastric and jugulo-omohyoid lymph nodes

Answer: Central

Flashcard 85: Sub_____ hemorrhage is bleeding in the potential space between the skull/periosteum/and the scalp/galea aponeurosis.

Answer: galeal

Flashcard 86: Cephalhematoma is a _____periosteal bleed, whereas subgaleal hematoma is a supraperiosteal bleed (supra/sub)

Answer: sub

Flashcard 87: Foramen of the skull:Structures passing through the _____ foramen include:Inferior Petrosal sinus+-Meningeal branch of ascending pharyngeal artery, -Cranial nerves IX,X & XI and Sigmoid Sinus that continues as IJV+Meningeal branch of occipital artery as it passes the foramen(from anterior to posterior)

Answer: jugular

Flashcard 88: The height of the upper tarsal plate is about _____ mm and that of the lower tarsal plate is 4 mm.

Answer: 10

Flashcard 89: Foramen of the skull:The _____ nerve and greater petrosal nerve join to form the vidian nerve that passes through the pterygoid canal (present in the floor of sphenoid bone) and end at the pterygopalatine ganglion

Answer: deep petrosal

Flashcard 90: _____ of the mandible is caused by lateral pterygoid and suprahyoid muscles

Answer: Depression