Test 3 Flashcards
alpha motor neuron
Spinal chord
Descending tract
Corticospinal tract, reticulospinal tract, tectospinal tract, vestibulospinal tract, raphespinal tract
Functional component are parasympathetic nerves
GVE
V3 of trigeminal
mostly motor
has nothing to to do with taste only motor
hypoglossal
taste component in the back of the throat, epiglottis region
vagus
Glossopharyngeal nerve
motor nucleus/ nucleus ambiguous
Innervates muscles of mastication
GSA
Corneal blink reflex involves
trgeminal(afferent) and facial (efferent)
otolithic membrane
Gelatinous membrane sitting on top. Weighted down by crystals on to sterocilia
spiral organ
receptor organ-organ of corti
scala media contains
filled with endolymph
scala vestibuli and tympani
filled with perilymph
fovea contains what type of cells
cones
Which is not a direct target of cell axons
visual cortex
hypoglossal nucleus
motor
normally when eyes look at something on the left side what is activated?
right occulomotor and left abducens
which funcitonal component is assocated with vestibulocochlear nearve
specific somatic efferents
Nerve fibers of the solitary tract
serve as afferent limb of reflexes and modulate cardiac and respiratory functions
Cerebral peduncles does not contain
Superior colliculus
which nucleus receives afferent fibers from the ventral hearing in the left ear
superior olivary nucleus
which uncles of nerve fibers contains central branches of the primary sensory neurons tat provide for general sensations from posterior 1/3 of the tongue
spinal trigeminal tract
72 year old with history of cardiovascular disease has sudden onset of confusion during which her left arm and leg became weak. Weakness was most likely due to damage of which of the following?
right internal capsule
how many functional components are in the brainstem?
seven
which branch of the trigeminal nerve carries motor fibers
mandibular
Olfactory tract contains what type of cells
Mitral cell axons
Which functional component do CN3, 6 and 12 share?
GSE
shine a light in the right eye but the left pupil does not respond, which nerve is damaged?
Left oculomotor nerve
A lesion to what area will cause loss of taste?
Nucleus solitaries
Olfactory cells axons are mad of what type of cell?
mitral cell
What olfactory striae is contralateral?
medial
which olfactory striae is involved in conscious perception of smell?
intermediate olfactory striae
Most important crossover in auditory pathways is
trapezoid body
what is not part of the auditory pathway
inferior olivary nucleus
what is the primary auditory cortex?
transverse temporal gyrus
Organ of court is where?
cochlear duct
Lateral rectus is innervated by
abducens nerve
when looking to the right you activate
right abducens and left occulomotor nerves
where do olfactory cells cross?
anterior commisure
what innervates muscles of mastication?
Trigeminal
concentration in the fovea?
Cones
CN VI controls
lateral rectus
Which nerve has a parasympathetic component?
CN III
shine light in the right no contraction…. left eye contracts
right occulomotor
Leison cause left pupil to respond when light is shone onto right retina but no response of right right pupil?
transection of right oculomotor
where ganglia cells not terminate
visual cortex
when looking at something on the right which nerves?
right abducens, left oculomotor
not made in ant pituitary
oxytocin
major decussation of auditory
oxytocin
which of the olfactory crosses over?
medial striae
Organ of corti
cochlear duct/spiral organ
medial and lateral Hypothalamus is separated by
fornix
olfactory nerve body in the
bulb
olfacoty axons synapses in
glomeruli of olfactory bulb
temporal lobe includes
auditory cortex
olfacotry glomeruli contain fibers from all except
granule cells
these neurons are replaced about every 2 months
olfactory
olfactory striae response for odor perception
medial
hypothalamus associated with
endocrine, limbic, ANS
hallucination
parahippocampal gyrus?
circuit for explained emotion is _____ and involved with limbic system?
papez circuit
Fornix goes from _____ to _____
hippocampus, mammillary bodies
some mitral cell axons cross at the
anterior commissure
Vasopressin released in capillaries with in neurohypophysis is produced by?
Neurons projecting to the posterior pituitary gland
what is involved in the pupillary light reflex?
ciliary
nerves involved in the SVA
I,VII, X
2 nerves involved in corneal reflex
trigeminal and facial
concentration in the fovea
cones
photoreceptor
rods
not true of the nerves of the solitary tract?
go to anterior 1/3 of tongue for taste
what does CN VI control
lateral rectus
sensory organ in dynamic equilibrium?
cristae
run into a tree -> what?
utricle, saccule, both
what nerve has a parasympathetic component?
CNIII oculomotor
shine light=>right eye no contraction left eye contraction what nerve?
Right oculomotor
What functional component is parasympathetic
GVE
What nerve innervates the muscles of mastication
trigeminal
Where do ganglia cells not terminate?
Visual cortex
when looking to the right
right abducens, left oculomotor
ascending LLF ends in
oculomotor nucleus
pharyngeal and laryngeal muscles innervated by muscle fibers from
nucleus ambiguus
what the solitary conveys
afferent limb of reflexes and modulates cardiac and respiratory function
if there a lesion and can’t taste
solitary tract/nucleus
what innerates the sensory tympani and stapes
trigeminal and facial nerves
