lab 5 Flashcards
what tracts pass thru the cerebral peduncles
corticospinal
are UMN or LMN of the corticospinal tract passing thru cerebral peduncle
UMN
what is the connection between midbrain and pons
pontomesencephalic
pontomesencephalic junction is the connections between what two strucrtues
midbrain and pons
what is the connections between pons and medulla
pontomedullar
pontomedullary junction is the connection between what two strucutes
pons and medially
decussation of the medulla happens where
at the caudal end of the medulla (spinomedullary junction)
which cranial n passes thru interpeduncular fossa
CN III
what structure of the brainstem drains into the central canal
obex
what are the structures that make up the floor of the 4th ventricle
facial colliculus
vestibular nucleus
cochlear nucleus
hypoglossal trigone
again trigon
obex
which of these is most medial: facial colliculus, vestibular nucleus,
cochlear nucleus
facial
which of these is most lateral: facial colliculus, vestibular nucleus,
cochlear nucleus
vestibular nucleus
what nucleus is under the tubercular gracilis
nucleus cuneatys
the habunella is involved in what olfactory reflex
increases salivation in response to appetizing smells
lateral geniculate nucleus is associated with auditory or visual pathways
visual
medial geniculate nucleus is associated with auditory or visual pathways
auditory
which of these is most lateral: tubercular gracilis, tubercular cuneatus, trigeminal tubercle
trigeminal tubercle
which of these is most medial: tubercular gracilis, tubercular cuneatus, trigeminal tubercle
tubercular gracilis
what is the location of the oculomotor n
interpenducular fossa (LEVEL OF THE SUPERIOD COLLICULi)
what is the locations of the trochlear n
dorsal aspect of midbrain (level of inferior colliculi)
what is the locations of the trigeminal n
lateral side of the basal pons (near middle cerebellar peduncles)
what is the locations of the abdeucens n
pontomedullary junction ventrally (most medially)
what is the locations of the facial n
pontomedullay junction ventrally (middle)what is the locations of the trochlear n
what is the locations of the vestibulocochlear n
pontomedulllar junction ventrally (most lateral)
what is the locations of the glossopharangeal n
behind olive in rostral medulla (rostral to CN X)
is the glossopharyngeal n rostral or caudal to CN X
rostral
what is the locations of the vagus n
behind olive in lateral side of rostral medulla (caudal CN IX)
is the vagus nerve caudal or rostral to CN IX
caudal
what is the locations of the accessory n n
laterally between the ventral and dorsolateral sulcus of SC
what is the locations of the hypoglossal n
ventrallatearl sulcus of rostral medulla
which nerves emerge from the ventral brainsteim
III, V, VI, VII, VIII, IX, X, XII
which nerves emerge from the dorsal brainsteim
trochlear (CN IV)
which CN do not emerge from the brainstem
I, II, XI
what are the sensory cranial n
olfactory (I)
optic (CN II)
vestibulocochlear (VIII)
what are the motor cranial n
oculomotor (III)
trochlear (IV)
abducens (VI)
Spinal accessory (XI)
hypoglaossal (XII)
what are the cranial n that are mixed
trigeminal (V)
facial (VII)
glossopharyngeal (IX)
Vagus (X)
be able to label the bones, foramina, and fossa of the ksull
.
what are the important foramina in the anterior cranial fossa
foramina of the cribriform (Ethmoid bone)
what are the important foramina in the middle cranial fossa
sup orbital fissure and inferior orbital fissure
optic canal
foramen rotendum
foramen lacerum
foramen ovlane
foramen spins
what are the important foramina in the posterior cranial fossa
internal acoustic meatus
jugular foramen
foramen magnum
hypoglossal canal
what are the important cranial n in the ethmoid bone
olfactory (cribriform foramina)
what are the important cranial n in the spehnoid bone
optic n (optic canal)
occulomotor (SOF)
trochlear (SOF)
opthalamic (CN V1) (SOF)
abducens (SOF)
maxillary (V2) (rotundeum)
mandibular (V3) (ovale)
what are the important cranial n in the temporal bone
facial n
vestibulocochlear n
=both in the internal acoustic meatus
what are the important cranial n between temporal and occipital bone
glossopharyngeal
vagus
accessory
=both in the jugular foramen
what are the important cranial n in the occipital bone
hypoglossal n (in the hypoglossal canal)
what is the nerve and function of the nerve (s) that pass thru the cribriform foramina
olfactory (Sensory)
what is the nerve and function of the nerve (s) that pass thru the optic foramen
optic n (sensory)
what is the nerve and function of the nerve (s) that pass thru the superior orbital fissure
oculomotor (motor)
trochlear (Motor)
abducens (motor)
ophthalmic (CN V1) (sensory)
what is the nerve and function of the nerve (s) that pass thru the foramen rotundeum
maxillary V2 (sensory)
what is the nerve and function of the nerve (s) that pass thru the foramen ovalen
mandibular (V3) (both)
what is the nerve and function of the nerve (s) that pass thru the foramen spinosum
none
what is the nerve and function of the nerve (s) that pass thru the internal acoustic meatus
facial (both)
vestibulocochlear (sensory)
what is the nerve and function of the nerve (s) that pass thru the jugular foramen
glossopharyngeal (both)
vagus n (both)
accessory (motor)
what is the nerve and function of the nerve (s) that pass thru the hypoglossal canal
hypoglossal n (motor)
