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