Flashcards in Cranial Nerves Deck (65):
Type of fibre:
Which Cranial Nerves are pure sensory?
Which Cranial Nerves are pure motor?
Which Cranial Nerves are mixed?
Which Cranial Nerves have no nuclei?
3 Motor Cranial Nerve Columns?
Cranial Nerve Nuclei in the somatic motor column? which part of the brainstem?
II (midbrain) olfactory
IV (Midbrain) trochlear
VI (Pons) Abducens
XII (medulla) Hypoglossal
Cranial Nerve Nuclei in the branchial? which part of brainstem?
V (V3 mandibular) Pons
VII: (Facial) Pons
What is the nucleus ambiguous? where is it?
Nuclei for branchial IX, X in the medulla behind the inferior olive
Cranial Nerve Nuclei IX, X in the nucleus ambiguous innervates what?
X: levator palati
Visceral efferents of Cranial Nerve Nuclei motor: which ones? where in brainstem?
III (midbrain) (Edinger-Westfall)
VII (Facial) (Pons) (superior salivatory)
IX (Medulla, Pons, inferior salivatory)
X (Medulla, dorsal motor nucleus of vagus)
Cranial Nerve Nuclei II is in which part of brainstem and which motor column?
somatic motor column
Cranial Nerve Nuclei XII is in which part of brainstem and which column?
somatic motor column
Cranial Nerve Nuclei X is in which part of brainstem and which motor column?
Cranial Nerve Nuclei V is in which part of brainstem and which motor column?
Cranial Nerve Nuclei VII is in which part of brainstem and which motor column?
What are the 3 sensory Cranial Nerve Nuclei columns?
Nucleus solitarius is where and what Cranial Nerve Nuclei are in it?
visceral afferent column
taste: VII, IX, X
Autonomic: IX, X
What is in the rostral part of nucleus solitarius?
gustatory nucleus (VII, IX, X)
What is in the caudal part of nucleus solitarius?
Cranial Nerve Nuclei for somatic sensory are? where in brainstem?
V (Trigeminal) (Midbrain/Pons)
skin behind ear and ext. auditory meatus
Cranial Nerve Nuclei for special sensory are? where in brainstem?
Nucleus ambiguous: which nuclei? which column?
Nucleus solitarius: which nuclei? which column?
Visceral sensory division of nucleus solitarius is found where?
gustatory nucleus of nucleus solitarius is found where?
Olfactory does what? exits?
optic: what kind of nerve? exit?
Cranial Nerve III, IV, VI exit where?
superior orbital fissure
Cranial Nerve IV innervates what?
Cranial Nerve VI innervates what?
CN III innervates?
4 muscles that aren't superior oblique/lateral rectus
what kind of nerve is CN III
visceral motor (parasympathetic)
besides moving extraocular muscles, what else does CN III do somatic motor?
Superior oblique of eye innervated by?
Lateral rectus of eye innervated by?
What parasympathetic/visceral efferent does CNIII do?
Ciliary muscle (focussing)
What Cranial Nerves are in the superior orbital fissure?
What Cranial Nerves exits the internal auditory meatus?
What Cranial Nerves exits jugular foramen?
What part of brain stem does pupillary light reflex test? How?
Motor: III (edinger westphal)
Trigeminal nerve is what kind of nerve? which columns nuclei?
3 things the trigeminal does:
4 trigeminal nuclei are? for what?
Chief sensory (face, head)
Spinal trigeminal nucleus (pain)
motor nucleus (chew)
what makes up the trigeminal ganglion?
sensory roots only
path of motor trigeminal?
travels with mandibular V3
Corneal blink reflex tests what? via which pathways?
CNVII Facial obicularis oculi
Facial nerve nuclei is part of 4 columns:
visceral sensory (taste)
3 motor functions of facial nerve?
1. facial expression
2. stapedius muscle
3. digastric muscle
which CN for tensor tympani? which for stapedius?
seventh (facial) stapedius
Which column does facial nerve proper come from?
Nervous intermedius is part of which CN? functions? (3)
5 branches of facial?
CNVII is for what?
CNVII nuclei where? how many?
CN VIII exits where? with what?
internal acoustic meatus
with facial nerve
what innervates the parotid?
glossopharyngeal CN IX
glossopharyngeal innervates what sensory in the mouth?
1. post 1/3 tongue, parynx, middle ear, carotid body
2. Taste: post 1/3
where does CN IX exit skull?
CNX main role?
autonomic regulation of viscera
gag reflex tests? via which nerves
where is the spinal accessory nuclei?
upper 506 cervical spinal cord
CNXI pathway? innervates which main muscles?
1. into foramen magnum, travels with vagus and exits jugular foramen
2. innervates sternocleidomastoid and trapzius
XII innervates what?
somatic motor to all muscles of tongue