Foramen lacerum Temporal Bone Nuchal lines Occipital Bone Foramen rotundum Sphenoid Bone Foramen ovale Sphenoid Bone Allows the passage of the maxillary nerve (V2), a branch of the trigeminal nerve. Transmits many structures, including: the artery of the pterygoid canal Attachment site for muscles. Perpendicular plate Ethmoid Bone Optic canals Sphenoid Bone Connects the orbit to the middle cranial fossa and transmits the optic nerve, ophthalmic artery, meningeal sheaths, and sympathetic nerve fibers. Allows the vestibulocochlear nerve and the facial nerve to pass into the skull at the base of the brain Forms superior portion of nasal septum. Hypoglossal canal Occipital Bone Internal auditory meatus Temporal Bone Transmits hypoglossal nerve from its point of entry near the medulla oblongata to its exit from the base of the skull near the jugular foramen. Temporal line (not labeled in Marieb books) Between Parietal and Temporal Bone Jugular foramen Temporal Bone Acts as conduit for essential structures to pass through Internal carotid artery passes. Mastoid process Temporal Bone Muscle attachment site. External occipital protuberance & Nuchal lines Sella turcica Sphenoid Bone Holds and protects pituitary glands. Occipital Bone Attachment site for muscles. Zygomatic process Temporal Bone Muscle attachment like chewing. Occipital condyle Occipital Bone Articulates with first cervical vertebra. Styloid process Temporal Bone Attachment for ligaments and muscles. Foramen magnum Occipital Bone Spinal cord connection. Transcribed image text: Feature External auditory meatus Location on Skull Temporal Bone Function Entrance to eardrum.
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