Cranial Nerves and Arteries Quiz

The oculomotor nerve (CN III) supplies the inferior rectus muscle.

The ophthalmic artery branches from the internal carotid artery, entering the orbit via the superior orbital fissure.

The inferior ophthalmic vein exits the orbit through the inferior orbital fissure.

The levator palpebrae superioris muscle (eyelid elevator) is innervated by the oculomotor nerve.

The abducens nerve (CN VI) exits the skull through the superior orbital fissure.

The posterior ethmoidal artery is a branch of the ophthalmic artery.

The piriform recess is in the nasopharynx and contains the internal branch of the superior laryngeal nerve.

Parotid lymph nodes are not part of Waldeyer's ring; it's a collection of lymphatic tissue in the pharynx.

The salpingopharyngeus muscle is a levator muscle of the pharynx.

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The glossopharyngeal nerve provides parasympathetic innervation to the parotid gland.

The vagus nerve exits the skull through the lateral part of the jugular foramen.

The hypoglossal nerve primarily controls most tongue muscles, except the palatoglossus.

The infraorbital nerve travels through the inferior orbital fissure.

The pterygopalatine ganglion lies on the lateral side of the optic nerve, receiving parasympathetic fibers from the greater petrosal nerve.

The lacrimal gland is innervated by the superior salivatory nucleus via the greater petrosal nerve, pterygopalatine ganglion, zygomatic nerve, and lacrimal nerve.

The infraorbital nerve supplies sensation to the upper lip.

The pterygopalatine ganglion receives sympathetic fibers from the external carotid artery plexus.

The hypoglossal nerve exits the skull through the hypoglossal canal.

The glossopharyngeal nerve is parasympathetic, regulating the parotid gland's function.

The lingual nerve is a branch of the mandibular nerve, responsible for sensation to the anterior two-thirds of the tongue.

The third molar, also known as the wisdom tooth, is the last tooth to erupt in the permanent dentition.

Vallate papillae are large, circular taste buds located in a V-shaped row in front of the sulcus terminalis on the tongue.

The mylohyoid muscle is NOT a tongue muscle, it's involved in floor of mouth movement and swallowing.

The orbicularis oris muscle is involved in lip movement, NOT chewing.

The posterior chamber of the eye is part of the vascular coat (uvea) between the iris and the lens.

The iris, responsible for controlling pupil size, is part of the vascular coat of the eye.

The macula lutea is a region in the retina responsible for the best vision (central vision).

The mental artery does NOT supply the nose, it supplies structures in the chin and mandible.

The frontal sinuses, maxillary sinuses, and anterior ethmoidal sinuses drain into the middle nasal meatus.

The facial nerve (CN VII) travels through the temporal bone within a canal.

The facial nerve's motor nucleus is located in the pons, not the midbrain.

The smaller sensory and parasympathetic component of the facial nerve is called the intermediate nerve.

The facial nerve enters the skull through the internal auditory meatus.

The corrugator supercilii muscle is responsible for creating horizontal wrinkles on the forehead.

The corrugator supercilii muscle is a small, narrow muscle located at the lateral end of the eyebrow.

The facial expression muscles are innervated by cranial nerve VII, the facial nerve.

Facial expression muscles originate from bone or fascia and insert into the skin.

The auditory tube connects the tympanic cavity (middle ear) to the nasopharynx.

The sacculus is a component of the internal ear.