The nerves and foramina of the skull quiz 4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Transmitted through foramen cecum | Valveless emissary vein
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| Through cribriform plate | Filaments of CN I (olfactory)
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| Through optic canal | Optic nerve (CN II), ophthalmic artery
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| Through superior orbital fissure | CN III (occulomotor), CN IV (trochlear), CN V1 (ophthalmic of trigeminal), CN VI (abducens)
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| Through f. Rotundum | Maxillary division of trigeminal nerve (CN V2)
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| Through f. Ovale | Mandibular division of trigeminal n. (CN V3)
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| Through f. Spinosum | Middle meningeal artery
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| Through f. Lacerum | Filled with cartilage in life
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| Through carotid canal | Internal carotid artery
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| Through internal acoustic meatus | CN VII (facial) and CN VIII (vestibulocochlear)
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| Through jugular canal | Internal jugular vein, CN IX (glossopharyngeal), CN X (vagus), CN XI (spinal accessory)
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| Through hypoglossal canal | CN XII (hypoglossal n.)
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| Through condylar canal | Emissary vein
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| Through Supraorbital f. | Supraorbital N.A.V.
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| Through infraorbital f. | Infraorbital N.A.V. (Nerve is a branch of Maxillary nerve)
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| External acoustic meatus | Opening of external ear
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| Through Mental f. | Mental N.A.V. (nerve is a branch of mandibular n (CN V3)
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| Through mandibular f. | Inferior alveolar N.A.V.
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| Through incisive f. | Nasopalatine n.
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| Through greater palatine f. | Greater palatine N.A.V.
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| Through lesser palatine f. | Lesser palatine N.A.V.
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| Through nasolacrimal canal | Nasolacrimal duct
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| Through stylomastoid f. | Most of CN VII (facial n.)
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| Through mastoid f. | Emissary vein
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| Through f. Magnum | Spinal cord, vertebral AA, spinal portion of CN XI (accessory nerve)
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| Olfactory n. number, component, innervation | (I), sensory, olfactory epithelium of nasal cavity
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| Optic n. number, component, innervation | (II), sensory, retina (rods and cones)
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| Oculomotor n number, component, innervation | (III), motor; superior, medial, and inferior rectus, inferior oblique, and levator palpebrae superior
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| Trochlear n. number, component, innervation | (IV), motor, superior oblique m.
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| Trigeminal n. number, component, innervation | (V1,2,3), both, skin/mucosae of head and face via ophthalmic, maxillary, and mandibular divisions; mm of mastication, tensors tympani and veli palatini, mylohyoid and anterior digastric mm.
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| Abducens n number, component, innervation | (VI), motor, lateral rectus m.
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| Facial n. number, component, innervation | (VII), both, facial expression mm, stapedius, stylohyoid, and posterior digastric mm, lacrimal, sublingual, and submandibular glands and mucosa, taste buds of anterior 2/3 of tongue middle ear, and external ear
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| Vestibulocochlear n number, component, innervation | (VIII), sensory, hair cells of cochlear duct
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| Glossopharyngeal n. number, component, innervation | (IX), both, taste buds of posterior 1/3 of tongue, parotid gland, pharynx, carotid sinus, posterior 1/3 of tongue, auditory tube, middle ear
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| Vagus n. number, component, innervation | (X), both, smooth and cardiac mm, glands of thoracic and abdominal organs through transverse colon, carotid and aortic bodies, mm of soft palate, pharynx, larynx, and esophagus, epiglottis, external ear
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| Accessory n number, component, innervation | (XI), motor, mm of pharynx and larynx, sternocleidomastoid, trapezius m
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| Hypoglossal n number, component, innervation | (XII), motor, extrinsic and intrinsic mm of tongue.
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