brain and cranial nerves (L9) Flashcards by Sydney Perry

general function types of fiber? cranial nerve Ihow old is this brain?

four week embryo (lateral view)

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how old is this brain?

five week embryo (lateral view)

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what is the outermost meninges?

dura mater

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what is the middle layer meninges?

arachnoid mater

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what is the innermost meninges?

pia mater

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what are the bumps and ridges on the cerebral cortex?

gyri
(plural-gyrus)

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what is the worm-like structure that connects the cerebellum?

vermis

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“sulcus”

divides lobes

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what makes up the corpora quadrigemina?

mesencephalon (midbrain) includes:
superior colliculi
inferior colliculi

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singular of colliculi?

colliculus

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what is the bumps closer to the spinal cord? the ones after those bumps?

medulla oblongata (closer to spinal cord)
pons

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what are the ventral parts of the brain stem? what is dorsal to that?

medulla oblongata
pons

cerebellum

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what produces CSF?

choroid plexus

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what does the third ventricle surround?

thalumus

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what does the aqueduct of the midbrain drain into?

fourth ventricle
-indent at bottom on cerebellum

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what does the epithalamus connect?

pineal body and thalamus

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what is the white matter of the cerebellum called?

arbor vitae

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what is the lobe in the cerebellum behind the fourth ventricle that has to do with equilibrium and balance?

flocculonodular lobe

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cranial nerve I

olfactory

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cranial nerve II

optic

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cranial nerve III

oculomotor

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cranial nerve IV

trochlear

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cranial nerve V

trigeminal

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cranial nerve VI

abducens

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cranial nerve VII

facial

cranial nerve VIII

vestibulocochlear

cranial nerve IX

glossopharyngeal

cranial nerve X

vagus

cranial nerve XI

spinal accessory

cranial nerve XII

hypoglossal

what nerve enters and exits in the forebrain; cerebral hemispheres?

what nerve enters and exits in the forebrain; diencephalon?

what nerve enters and exits in the midbrain?

3, 4

what nerve enters and exits in the brainstem;pons?

what nerve enters and exits in the brainstem; junction between pons and medulla?

6, 7, 8

what nerve enters and exits in the brainstem; medulla?

9, 10, 12

what nerve enters and exits in the superior spinal cord?

SPECIAL SENSE function type of fiber

1, 2, 8

MOTOR function type of fiber

3, 4, 6, 11, 12

MIXED (motor root and sensory root) function type of fiber

MIXED (primary root and sensory root) function type of fiber

MIXED function type of fiber

9, 10

1. Lateral Ventricles 2. Interventricular formina 3. Third ventricle 4. Fourth ventricle 5. Aqueduct of midbrain

1. Olfactory bulbs 2. Olfactory ducts 3. Optic Chaism 4. Pituitary glands 5. Corpora Quadrigemina 6.Pons 7. Medulla

Midsagittal section of cerebellum Top: Arbor Vitae Bottom: Folia(4th ventricle deep)

Coronal Section of Human Cerebrum A. White Matter B. Corpus Colosum C.Third Ventricle D. Pons E. Lateral Ventricle F. Caudate Nucleus G. Septum Pellucidum H.Putamen I. Cerebellum

What cranial nerves that originate from the midbrain

Oculomotor nerve( CN III) Trochlear Nerve(CN IV)

What cranial nerves originate from the pons

Trigeminal (CN V) Adbucens (CN VI) Facial (CN VII)

where is the vestiulucochlear nerve(CN VII) located

btwn pons and medulla

what cranial nerves orginate from the medulla

CN IX- Glossopharyngeal CN X- Vagus CN XI- Accessory CN XII- Hypoglossal

which cranial nerves are sensory and which are motor

Sensory 1, 2, 8, Motor 3, 4, 6, 7, 11, 12 Both 5, 9, 10

function of CN-I (olfactory)

smell sensory to brain

function of CN-II (optic)

retina info to brain

function of CN-III (oculomotor)

innervate eye muscles -inferior oblique -superior rectus -inferior rectus -medial rectus

function of CN-IV (trochlear)

innervate eye muscles -superior oblique

function of CN-V (trigeminal)

face sensation sensory -V1: frontal area of face -V2: maxillary area of dace -V3: mandibular area of face motor (supplied by V3) -temporalis -masseter -lateral and medial pterygoid muscles

function of CN-VI (abducens)

innervate eye muscles -lateral rectus muscle

function of CN-VII (facial)

facial expression muscles Glands in face -sublingual, submandibular, lacrimal/tear (NOT parotid) taste anterior 2/3 of tongue

function of CN-VIII (vestibulocochlear/auditory)

from ear to pons

function of CN-IX (glossopharyngeal)

sensory -taste -posterior 1/3 tongue (gag) motor -parotid gland

function of CN-X (vagus)

motor and sensory to organs (mostly digestive)

function of CN-XI (accessory/spinal accessory)

sternocleidomastoid muscle (SCM) trapezius

function of CN-XII (hypoglossal)

movement of tongue

brain and cranial nerves (L9) Flashcards

(79 cards)