Notes in 04CranialNerves

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Published	07/30/2024	Origin of the CN I (Olfactory)
Published	07/30/2024	Origin of the CN II (Optic)
Published	07/30/2024	Origin of the CN III (Oculomotor)
Published	07/30/2024	Origin of the CN IV (Trochlear)
Published	07/30/2024	Origin of the CN V (Trigeminal)
Published	07/30/2024	Origin of the CN VI (Abducens)
Published	07/30/2024	Origin of the CN VII (Facial)
Published	07/30/2024	Origin of the CN VIII (Vestibulocochlear)
Published	07/30/2024	Origin of the CN IX (Glossopharyngeal)
Published	07/30/2024	Origin of the CN X (Vagus)
Published	07/30/2024	Origin of the CN XI (Accessory)
Published	07/30/2024	Origin of the CN XII (Hypoglossal)
Published	07/30/2024	Canal/Opening of the CN I (Olfactory)
Published	07/30/2024	Canal/Opening of the CN II (Optic)
Published	07/30/2024	Canal/Opening of the CN III (Oculomotor)
Published	07/30/2024	Canal/Opening of the CN IV (Trochlear)
Published	07/30/2024	Canal/Opening of the CN V (Trigeminal) (skull)
Published	07/30/2024	Canal/Opening of the CN V (Trigeminal) (cutaneous branches)
Published	07/30/2024	Canal/Opening of the CN VI (Abducens)
Published	07/30/2024	Canal/Opening of the CN VII (Facial)
Published	07/30/2024	Canal/Opening of the CN VII (Facial) (motor branches)
Published	07/30/2024	Canal/Opening of the CN VIII (Vestibulocochlear)
Published	07/30/2024	Canal/Opening of the CN IX (Glossopharyngeal)
Published	07/30/2024	Canal/Opening of the CN X (Vagus)
Published	07/30/2024	Canal/Opening of the CN XI (Accessory)
Published	07/30/2024	Canal/Opening of the CN XII (Hypoglossal)
Published	07/30/2024	Pathway of CN I (Olfactory)
Published	07/30/2024	Only nerve with exposed terminal fibers
Published	07/30/2024	NOT a true nerve (develops as an outgrowth of the brain, therefore considered a brain tract)
Published	07/30/2024	Pathway of CN II (Optic)
Published	07/30/2024	Pathway of CN III (Oculomotor)
Published	07/30/2024	Pathway of CN III (Oculomotor) parasympathetic fibers
Published	07/30/2024	Pathway of CN IV (Trochlear)
Published	07/30/2024	Pathway of CN V (Trigeminal)
Published	07/30/2024	Pathway of CN VI (Abducens)
Published	07/30/2024	Pathway of CN VII (Facial)
Published	07/30/2024	Pathway of CN VIII (Vestibulocochlear)
Published	07/30/2024	Pathway of CN IX (Glossopharyngeal)
Published	07/30/2024	Pathway of CN X (Vagus)
Published	07/30/2024	Pathway of CN XI (Accessory)
Published	07/30/2024	Pathway of CN XII (Hypoglossal)
Published	07/30/2024	Cell bodies of CN VII (Facial)
Published	07/30/2024	Cell bodies of CN VIII (Vestibulocochlear)
Published	07/30/2024	Cell bodies of CN IX (Glosspharyngeal)
Published	07/30/2024	Function of CN I (Olfactory)
Published	07/30/2024	Fracture of the ethmoid bone or lesions of olfactory fibers may result in partial or total loss of smell, a condition known as
Published	07/30/2024	Function of CN II (Optic)
Published	07/30/2024	What is damaged when there is blindness in the eye served by a nerve
Published	07/30/2024	What is damaged when there is partial visual losses
Published	07/30/2024	aka anopsias
Published	07/30/2024	Controls the superior rectus
Published	07/30/2024	Controls medial rectus
Published	07/30/2024	Controls inferior rectus
Published	07/30/2024	Controls inferior oblique muscles
Published	07/30/2024	Controls constrictor muscles (sphincter pupillae) of the iris that constrict the pupil.
Published	07/30/2024	Controls ciliary muscle that controls lens shape
Published	07/30/2024	ptosis - The upper eyelid droops, and the person has double vision [Localize damage]
Published	07/30/2024	eye is pathologically turned laterally [Localize damage]
Published	07/30/2024	Controls superior oblique muscles
Published	07/30/2024	Controls a muscle that passes through a ligamentous pulley at the roof of the orbit
Published	07/30/2024	reduced ability to rotate the eye inferolaterally [Localize damage]
Published	07/30/2024	sensation from skin of anterior scalp and forehead, upper eyelid and nose, nasal cavity mucosa, cornea, and lacrimal gland
Published	07/30/2024	sensation from skin of cheek, upper lip, and lower eyelid, nasal cavity mucosa, palate, upper teeth
Published	07/30/2024	sensation from skin of chin and temporal region of scalp, anterior tongue and lower teeth
Published	07/30/2024	Innervate the muscles of mastication: temporalis, masseter, pterygoids, anterior belly of digastric
Published	07/30/2024	To desensitize upper and lower jaws, where do you inject Novocain
Published	07/30/2024	Controls the lateral rectus muscle
Published	07/30/2024	eye cannot be moved laterally; at rest, affected eyeball turns medially [Localize damage]
Published	07/30/2024	5 branches of CN VII (Facial)
Published	07/30/2024	sensation from small patch of skin on the ear
Published	07/30/2024	innervate the facial muscles
Published	07/30/2024	Control posterior belly of digastric
Published	07/30/2024	Innervate the lacrimal (tear) glands, nasal and palatine glands, and the submandibular and sublingual salivary glands.
Published	07/30/2024	Bell's Palsy - characterized by paralysis of facial muscles on affected side and partial loss of taste sensation, may develop rapidly (often over…
Published	07/30/2024	What nerve senses equilibrium?
Published	07/30/2024	What nerve senses hearing?
Published	07/30/2024	CN VIII (Vestibulocochlear) has no motor component [T/F]
Published	07/30/2024	central or nerve deafness [Localize damage]
Published	07/30/2024	dizziness, rapid involuntary eye movements, loss of balance, nausea, and vomiting [Localize damage]
Published	07/30/2024	Innervate a pharyngeal muscle, stylopharyngeus
Published	07/30/2024	swallowing and taste on the posterior third of the tongue is impaired? [Localize damage]
Published	07/30/2024	Innervates skeletal muscles of the pharynx and larynx involved in swallowing and vocalization
Published	07/30/2024	sensation from taste buds on the epiglottis
Published	07/30/2024	Sensation from thoracic and abdominal viscera, mucosa of larynx and pharynx, carotid sinus (baroreceptor for blood pressure), and carotid and aortic b…
Published	07/30/2024	Regulates heart rate, breathing, and digestive system activity
Published	07/30/2024	Destruction of both Vagus nerves is not compatible w/ life [T/F]
Published	07/30/2024	Damage to what nerve causes hoarseness or loss of voice, difficulty swallowing and impaired digestive system motility
Published	07/30/2024	Innervate the trapezius and sternocleidomastoid muscles that move the head and neck.
Published	07/30/2024	Where is the damage if shrugging of the shoulder (role of trapezius muscle) becomes difficult.
Published	07/30/2024	Somatic motor function of CN XII (hypoglossal)
Published	07/30/2024	What if both CN XII (hypoglossal) nerves are damaged
Published	07/30/2024	What if 1 CN XII (hypoglossal) nerve is damaged
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