Nervous System I: The Central Nervous System

Medulla Oblongata

Structure. Very bottom of brain stem

Olives

Structure

Pyramids

Structure. Front legs of the seahorse

Inferior cerebellar peduncles

Structure. Back of the seahorse legs

Glossopharyngeal nerve (CN IX)

Structure. To the left of the olives, little upper dot

Vagus nerve (CN X)

Structure. Just under the Glossopharyngeal nerve / Bottom dot

Hypoglossal nerve (CN XII)

Structure

spinal accessory nerve (CN XI)

Structure. V shape

Pons

Structure

Middle cerebellar peduncles

Structure. Smooth area

Superior cerebellar peduncles

structure. horseshoe shape

Fourth ventricle

Space. Triangle space next to pons/ cerebellum

Rhomboid fossa

Depression. Against pons /bottom of the triangle

Cerebellar part of the 4th ventricle

Structure. Sides of triangle against cerebellum

Abducens nerve (CN VI)

Structure

Facial nerve (CN VII)

Structure

Vestibulocochlear nerve (CN VIII)

structure

Trigeminal nerve (CN V)

Structure. snowman

Corpora quadrigemina

collective structure. whole butterfly

Superior colliculi

Feature. Top 2 wings of the butterfly

Inferior colliculi

Feature. Bottom 2 wings on the butterfly

Crus cerebri

structure

Substantia nigra

structure. black line

Cerebral aqueduct

Space. Opposite side on the brain steak than the substantia nigra

Oculomotor nerve (CN III)

structure

Trochlear nerve (CN IV)

Structure

Thalamus

Structure. Eye on the seahorse

Interthalamic adhesion

feature. Pupil on eye, middle of the eye

Epithalamus

structure

Pineal gland

structure

Hypothalamus

Structure. Nose of seahorse

Infundibulum of the brain

Structure. Cherry STEM right before red part (cherry)

Mammillary bodies of the brain

Structure. Little bump near/ under nose

Optic chiasm

Structure. Shown on the brain/ X-shape

Third ventricle

Space

Cerebellar hemispheres

structure. 2 Balls

Folia of the cerebellum

Ridge. Ridges on top of balls

Fissures of the cerebellum

Depression. Space in balls

Vermis of the cerebellum

Division. Line separating balls

Cerebellar cortex

Structure. Tan around white

Arbor vitae

Feature. white snowflake

Cerebral hemispheres

Structure. Halves of brain/ Will put hand over one half

Longitudinal fissure

space

Cerebral cortex

Gray matter. Any gray on the outside of the brain steak

Cerebral gyri

ridges

Cerebral sulci

depression. in between squiggles

Frontal lobes

region

Frontal poles

feature. Will tap with 2 fingers on frontal lobe

Parietal lobes

region

Temporal lobes

region

Temporal poles

feature. Will tap with 2 fingers on the bottom side

Occipital lobes

region

Occipital poles

feature. Will tap with 2 fingers

Insula

internal region

Central Sulcus

depressions

Precentral gyrus

ridge

Postcentral gyrus

ridge

Precentral sulcus

depression

Postcentral sulcus

depression

Lateral sulcus

depression

Corpus callosum

structure, first sombrero

Cingulate gyrus

ridge, bigger sombrero

Cingulate sulcus

depression

parieto-occipital sulcus

depression. between parietal/ occipital lobe

Calcarine sulcus

depression, straight out the back

Fornix

structure

Septum Pellucidum

structure

olfactory bulbs

feature

Olfactory tracts

structure

Lateral ventricles

spaces

Septal nuclei

union

Hippocampus

structure. *cinnamon roll*

Corona radiata

white matter

Cranial dura mater

covering

Cranial arachnoid mater

covering. webby like covering

Cranial pia mater

Covering. tan portion of brain on bottom

Falx cerebri

Infolding. Thin sheet separates hemispheres

Conus Medullaris

Structure

Ventral rootlets

structure

Dorsal rootlets

structure

Ventral roots

structure

Dorsal roots

structure

Spinal ganglion

structure

Spinal nerve

structure

Ventral ramus

structure

Dorsal ramus

Structure. broken

Cauda equina

Structure. horse tail

Spinal pia mater

Covering. will tap on spinal cord

Spinal epidural space

Space. will stick probe up under vertebrae/ above dura mater

Spinal subdural space

Space. under dura mater

Choroid plexus

Structure. All pink on model

Lateral ventricles

Space. Ram horns on sides

Interventricular foramina

Passageway. Connects top of ram horns to the center

Cerebral aqueduct

Passageway. Looking at posterior side

Fourth ventricle

space

Central canal of spinal cord

Passageway. pointy end

Median aperture

passageway

Lateral aperture

passageway

third ventricle

space