Back to notes
Through which foramen does the Hypoglossal Nerve (Cranial Nerve XII) pass?
Press to flip
Hypoglossal canal.
What type of fibers are found in the Olfactory Nerve (Cranial Nerve I)?
Special visceral afferent (SVA) fibers.
Which muscles are controlled by the Accessory Nerve (Cranial Nerve XI)?
Sternocleidomastoid and trapezius.
Identify the supplied structures and function of the Hypoglossal Nerve (Cranial Nerve XII).
Extrinsic and intrinsic muscles of the tongue; Function: Tongue shape change, protraction, retraction, elevation, depression.
Describe the function of the Trochlear Nerve (Cranial Nerve IV).
Eye movement (depression and lateral rotation).
Which glands are innervated by the Facial Nerve (Cranial Nerve VII)?
Lacrimal glands, nasal glands, palatine glands.
What is the origin of the Olfactory Nerve (Cranial Nerve I)?
Roof of nasal cavity (olfactory mucosa).
Which fiber types are present in the Optic Nerve (Cranial Nerve II)?
Special sensory afferent fibers.
Through which skull pathways do the branches of the Trigeminal Nerve (Cranial Nerve V) pass?
Ophthalmic (V1) - Superior orbital fissure, Maxillary (V2) - Foramen rotundum, Mandibular (V3 and motor fibers) - Foramen ovale.
What structures are supplied by the Glossopharyngeal Nerve (Cranial Nerve IX)?
Stylopharyngeus, pharynx, soft palate, tonsils, posterior 1/3 of tongue, carotid bodies, ear, parotid gland.
Which muscles are supplied by the Oculomotor Nerve (Cranial Nerve III)?
Superior rectus, levator palpebrae superioris, inferior rectus, inferior oblique, medial rectus, pupil (sphincter pupillae), and ciliary muscle.
What is the primary function of the Abducens Nerve (Cranial Nerve VI)?
Eye movement (lateral rotation).
What are the sensory functions of the Vestibulocochlear Nerve (Cranial Nerve VIII)?
Balance (static and dynamic equilibrium) and sound.
What does the mnemonic 'LR6 SO4 AT3' stand for in terms of extraocular muscle innervation?
Lateral rectus by Cranial Nerve VI, Superior oblique by Cranial Nerve IV, All others by Cranial Nerve III.
What are the parasympathetic functions of the Vagus Nerve (Cranial Nerve X)?
Main parasympathetic nerve: pharynx/larynx contraction, heart rate regulation, thoracic/abdominal viscera functions.
Previous
Next