Test 2: CN Overview Flashcards
What is CN I and what is it’s function?
Olfactory
Smell
What is the cranial foramina of CN I?
cribiform plate
Where is the CNS nucleus for CNI?
What peripheral structure innervated?
olfactory bulb
Olfactory receptors of olfactory epithelium
What is CNII and what is it’s function?
Optic
Vision
What cranial foramina of CN II?
Optic
Where is the CNS nucleus of CNII?
Peripheral structure innervated?
LGN
Retina (ganglia cells)
What is CNIII? What are it’s 2 functions?
Oculomotor
Somatic skeletal muscle
Autonomic
What cranial foramina does CNII go through?
Superior orbital fissure
Where is the CNS nucleus of CNIII?
Peripheral structures innervated?
Autonomic: Edinger-Westphal
-Periph autonom ganglia= Ciliary
Constrictor muscle of iris and cilliary muscle
What is CN IV? What is function?
Trochlear
Somatic skeletal muscle
Where does CNIV foramina?
superior orbital fissure
CNIV CNS nuclues
Periph innervation
trochlear
superior oblique muscles
CNV name? Function?
Trigeminal
Somatic sensory and Branchiomeric motor
CNV cranial foramin
Opthalamic: superior orbital fissure
Maxillary: rotundum
Mandibular: ovale
CNV CNS Nucleus location
Spinal nucleus
Main sensory nucleus
Mesencephalic nucleus
Motor nucleus
CNV Peripheral innverated
skin/mucous of head
Muscles in jaw
Tensor tympani
Digastric
CNVI name/function
Abducens
Somatic skeletal muscle
CNVI foramina
superior orbital fissure
CNVI CNS nuclues
Peripheral innervation
Abducens
Lateral rectus muscle
CNVII name/function
Facial / Intermediate
Branchiomotor/ taste, somatic sensory, autonomic
CNVII foramina
Internal auditory meatus
CNVII Peripheral sensory ganglia
Geniculate
CNVII CNS nuclues
Facial/ solitary, facial spinal, superior salvitory
CNVII peripheral autonomic ganglia
pterygoid
submanidublar
CNVII peripheral innervation
Intermed:
taste ant 2/3rd tongue, palate
skin of external ear
lacrimal grlands, nasal mucosa glands, salivary glands
Facial:
Muscles of facial expression, stapedis
CNVIII name/function
Vestibulocochlear
Hearing and balance
CNVIII foramin
Internal auditory meatus
CNVIII Periphoral sensory ganglia
spiral
vestibular
CNVIII CNS nuclus location
cochlear
vestibular
CNVIII peripheral innervation
Hair cells in organ of corti
Hair cells in vestibular labrynth
CNIX name/function
Glossopharyngeal
somatic sensory, viscerosensory, taste, autonomic, branciomotor
CNIX foramina
jugular
CNIX peripheral sensory ganglia
Peripher autonomic ganglie
superior, petrosal (inferior)
Otic
CNIX CNS nucleus
Somat sense: Spinal nucleus of CNV Viscerosens: Caudal Solitary nucleus Taste: Rostral solitary nucleus Autonom: Inferior salvitory nucleus Branch: Ambigguus
CNX name/function
Vagus
somatic sensory. viscerosensory, taste, autonomic, branchiomotor
CNX foramina
jugular
CNX peripheral sensory ganglia
Jugular, nodose
CNX CNS nucleus
Somat: Spinal nucleus Viscerosens: Solitary nucleus caudal Taste: solitary nucleus rostral Autonom: Dorsal motor nucleus of X Branch: Ambiguus
CNX Peripheral autonomic ganglia
peripheral autonomic
CNIX peripheral innervated
skin of external ear
mucous membranes of pharyngeal, middle ear, carodtid, body, sinus
parotid gland
striated muscle of pharynx
CNX peripheral innervated
Skin of external ear larynx, trachea, gut, aortic arch taste buds gut striated muscles of palate, pharynx, and larynx
CNXI name/fcuntion
Spinal accessory
Branciomotor
CNXIforamina
jugular
CNXI CNS nucleus
ambiguus
accessory nucleus
CNXI peripheral innervation
striated muscle larynx
SCM, traps
CNXII name/function
Hypoglossal
Somatic skeletal muscle
CNXII formania
Hypoglossal
CNXII CNS nucleus
Hypoglossal
CNXII peripheral innervation
intrinsic muscles of tongue, hypoglossus, genioglossus, and styloglosus