Neuro Workbook 2 + all diagrams from week 1 and 2 Flashcards
what kind of fibres pass through the corpus callosum
commisural
what does the fornix do
connects hippocampus to mamillary body
what are basal ganglia
collections of neuronal cell bodies
5 basal ganglia
Caudate nucleus
putamen
globus pallidus
Subthalamic nucleus
substantia nigra
what makes up the lentiform nucleas
putamen and
globus pallidus
what’s the septum pellucidum
is a thin sheet that separates the
anterior horns of the two lateral ventricles.
where is the caudate nucleus and what does it look like
Identify a bulbous projection on the floor of the lateral ventricle.
what does the thalamus do
its a sensory relay area
what part of the thalamus does does most of the general sensory info pass through
ventro-postero-lateral (VPL) nucleus
Where are the colliculi (a component of the midbrain) in relation to the pineal gland?
inferior
what is the internal capsule made of
myelinated axons- white matter
What is the name given to fibres that connect the cerebral hemispheres with other parts of the brain?
and where can they be found
projection
internal capsule
Which cerebral artery through one of its branches supplies the internal capsule?
MCA
whats this
substancia nigra
Where would the red nucleus be in relation to the substantia nigra, anterior or
posterior to it?
anterior
what type of fibres does the cerebral peduncles contain
motor
sensory
in spine which is grey or white matter
Grey matter – IN
White matter- OUT
white appears darkly stained
which part of spinal chord is anterior
and what type of fibres
fat bit- ventral = anterior
What is the name of the hole in the middle of the spinal cord and what does it contain?
Central canal- contains CSF
what does the spinothalmic tract send
sensory- pain and temp
thalmic- sounds like temp
what does dorsal column send
all sensory apart from pain and temp
what does corticospinal tract send
voluntary motor
cortic-brain
spinal- spine so is descending
where does spinothalmic tract cross and synapse
as soon as it entres the spine
where does the dorsal column cross
in the medulla
where does the corticospinal tract cross
in medulla
Which of the cranial nerves have a parasympathetic component?
- 7,9,10
oculomotor
facial,
glossopharyngeal
vagus nerves
Which cranial nerve(s) are attached directly to the brain?
1 and 2- first so start early
Olfactory and optic
Which cranial nerve(s) are attached directly to the midbrain?
3 and 4
Oculomotor, trochlear
Which is the only cranial nerve to arise from the posterior aspect of the brain?
4- trochlear
Which cranial nerve(s) are attached directly to the pons?
V- trigeminal
Which cranial nerve(s) are attached directly to the pontomedullary junction?
6, 7, 8
abducens nerve
facial nerve
vestibulocochlear nerve
Which cranial nerve(s) are attached directly to the medulla?
9, 10, 11, 12
glossopharyngeal
vagus
accessory
hypoglossal
way to work out what nerves come out of what part of the brain
working the way down-
2 - brain
2 - midbrain
1 - posterior brain
1 - pons
3 - pontomedullary junction
4 -medulla
Which cranial nerve can be tested by the pupillary light reflex?
occulomotor
Which cranial nerve can be tested by touch over the surface of the cheek? x3
Trigeminal mandibular
maxillary V2 + 3
What cranial nerve would you be testing if you asked the patient to stick their tongue out?
hypoglossal
what vertebral level is this
cervical
short ventral horn
what vertebral level is this
thoracic
look for sticky out bit in middle
what vertebral level is this
lumbar
generally much thicker
what vertebral layer is this
sacral
huge ventral horn
whats the green tract
what does it carry
dorsal column
all sensation except pain and temp
what are the light and dark blue tracts
what do they carry
light = lateral
dark= ant
corticospinal tracts
voluntary movement
what are the orange and yellow tracts
orange = lat
yellow = ant
spinothalamic tracts
pain and tempurature
parts of the corpus collosum: whats the brown part
splenium
S is near end of the alphabet so is the end of corpus
parts of the corpus collosum: whats the blue part
body
parts of the corpus collosum: whats the pink part
genu
genu “like new” so not quite first- second
parts of the corpus collosum: whats the green part
rostrum
roosters call in the morning- start
whats the pink box
calcarine sulcus
whats the dark blue box
cerebral aquaduct
whats the light blur box
4th ventricle
whats the red box
superior colliculi
whats the dark blue box
lateral ventricle
whats the light blue box
third ventricle
whats the deep red box
thalamus
whats the purple box
and what does it do x2
caudate nucleas
whats in the green box
lentiform nucleas
whats in the orange box
what does it do
internal capsule
allows communication between brain, brainstem and spine- projection fibres
overall function of the basal ganglia
feedbacks sensory info to cortex- helping to refine movements
also has a role in memory and emotion
whats the grey box
corpas collosum
whats in the light blue box
lateral ventricles
whats in the pink box
pons
whats in the dark blue box
cerebral aquaduct
whats in the blue box
putamen
whats in the pink box
internal capsule
whats in the pink box
ciliary ganglion
whats in the blue box
optic nerve
whats in the green box
trochlear
whats in the red box
sup devision of oculomotor
whats in the purple box
abducens
whats the orange structure
and what does it do
middle cerebeller peduncle
what artery serves the red area
MCA
what artery serves the yellow area
ACA
what artery serves the blue area
PCA
whats the green sulcus
central sulcus
whats the orange sulcus
parieto-occipital sulcus
whats the yellow sulcus
calcarine
whats the dark blue sulcus
congulate sulcus
whats the red sinus
superior saggital sinus
whats the pink sinus
inferior saggital sinus
whats the dark red vein
IJV
whats the light blue sinus
sigmoid
whats the orange sinus
transverse sinus
whats the green sinus
straight
whats in the grey box
confluence of sinuses
name for the thing that produces CSF
choriod plexus
hard function of the post central sulcus
GENERAL sensory
special sensory done via cranial nerves
whats the yellow lobe
vermis
grey lobe
anterior lobe
brown lobe
posterior lobe
dark red lobe
tonsil
blue thing
flocculonodular lobe
whats the blue area
what number is it
what does it control
pre central gyrus
4
primary motor- voluntary
what is the red area
what number is it
what does it control
post central gyrus
3,1,2
somatosensory- proprioception
what is the orange area
what number is it
what does it control
wernikes area
22
comprehension of speech
what is the purple area
what number is it
what does it control
brocas area
44,45
motor control of speech
what is the yellow area
what number is it
primary auditory cortex
41
what is the green area
what is its number
primary visual cortex
17
whats the purple thing
and what does it do
thalamus
sensory relay system
whats the pink thing
what does it have a role in
mamillary body
memory
whats the red thing
what does it have a role in
hipocampus
learning and memory
whats the blue thing
what does it too
fornix
connects mamillary bodies to hippocampus
whats the blue thing
lateral ventrical
whats the yellow thing
fornix
what is the red thing
whats sitting just above
what do either do
inferior colliculi
superior colliculi
sup- integrates sensory info to ensure head and eyes are looking at right thing
inf- integrates sound info
what are the dark and light green things
dark = caudate nucleas
ligh = thalamus
what are the light and dark red things
light = internal capsule
dark= hippocampus
what is the yellow thing
fornix
grey = grey
white = white
simple in the brain- opposite spinal cord
what are the light and dark blue things
light = 3rd ventrical
dark = choriod plexus
what tract is this
what does it transmit
spinothalamic- crosses straight away
pain and tempurature
what tract is this
what does it transmit
dorsal column- uses dorsal horn
all sensory
what tract is this
what does it transmit
corticospinal tract- does through ventral horn
voluntary movement
whats the yellow nerve
facial- 7
whats the dark purple nerve
vestibulocochlear- 8
whats the light purple nerve
glossopharyngeal- 9
whats the orange nerve
vagus- 10
whats the dark blue nerve
accessory- 11
whats the light blue nerve
hypoglossal- 12
whats the pink nerve
abducent- 6
whats the light yellow nerve
olfactory- 1
whats the light blue nerve
optic- 2
whats the dark blue nerve
occulomotor- 3
whats the orange nerve
trochlear- 4
whats the red nerve
trigeminal- 5
whats the purple bit
olfactory bulb
whats the blue bit
olfactory tract
whats the yellow bit- be specific
cribiform plate in the ETHMOID bone
whats the purple bit
and what is its function
lateral geniculate body
relay center in the thalamus for the visual pathway- sends optic nerve info to occipital lobe
whats the blue bit
optic radiation
whats the green bit
and what does it do
Pretectum
Controls reflexes of
pupil and lense
what are the dark and light blue nerves
dark = ophthalmic trigeminal
light = supraorbital
branch of trigeminal
what are the red and pink nerves
red = maxillary trigeminal
pink = Ant superior alveolar
branch of maxillary
what are the 3 green nerves
dark = mandibular trigeminal
lime = inferior alveolar of mandibular
light = lingual of mandibular
whats the purple nerve
chordae tympani
whats the yellow nerve
parotid plexus
whats the yellow thing
parotid gland
whats the red thing
carotid sinus
what nerve is this
accesory- 11
what nerve is this
hypoglossal- 12
identify B
insula
identify C
3rd ventrical
identify A and B
A = oculomotor
B = abducens
identify C
trochlear
What four cranial nerves carry parasympathetic fibres
3,7, 9, 10
identify A
what type of fibres are present in it
chordae tympani
special sensory and parasympathetic
identify A
cricothyroid muscle
what is B
what does it innervate
recurrent laryngeal nerve- branch of X
Intrinsic laryngeal muscles
what type of fibres does A contain
commiseral- corpus collosum
what is A
what does it do
septum pellucidum
seperate the 2 lateral ventricals
whats B
genu- not curved round yet so not rostrum
whats C
fornix
what region of the spine is this from
cervical
whats A and B
A = caudate nucleus
B = internal capsule
whats C
globus pallidus- smaller bit = globus