Neuroglial Cells

Neuron glue
Astrocytes

blood brain barrier, removes excess K+
Ependymal Cells

Oligodendrocytes

Form myelin sheaths surrounds neurons in PNS
Microglia

Defensive cells in CNS- eats bacteria
Schwann Cells

Wraps around Axon for protection (the only one not in the CNS)
Cell Body (Structures of a Neuron)

Dendrites

receptive regions
Axon

Impulse generating site
Myelin

phospholipid bilayer (white)
Nodes of Ranvier

Spaces between mylein sheath to absorb Na+ and K+
Synapse

where two neurons come together
Axon Hillock

beginning of axon (first place for Action potential)
Unipolar (Types of Neurons)

sensory neurons
Bipolar

sensory for vision and smell
Multipolar

multiple neurons, motor neurons, and inter-neurons
Sensory
collects information sends to brain or spinal chord
Motor
create motor outputs
Association (inter-)
go between sensory and motor neurons
Dura Mater (Meninges)

thick outer layer of meninges (tough mother)
Arachnoid Mater (Meninges)

creates space for nerves and blood vessels
Pia Matter (Meninges)

touches the brain (soft mother)
Cerebrum

Cerebral hemispheres

Longitudinal Fissure

Frontal Lobe

Parietal Lobe

Temporal Lobe

Occipital Lobe

Gray matter (Cortex)

White Matter (medulla)

Gyri

Sulci

Cerebellum

Arbor Vitae

Corpora Quadrigemina

Superior Colliculi (CQ)

Inferior Colliculi (CQ)

Pineal Body

Medulla Oblongata

Pons

Corpus Callosum

Septum Pellucidum

wall inside corpus callosum
Thalamus

looks like an olive
Hypothalamus

under thalamus
Optic Chiasma

X- base of hypothalamus
Pituitary Gland

Infundibulum
CSF- cerebrospinal fluid

Choroid Plexus

Lateral Ventricles

Third Ventricle

Fourth Ventricle

Cerebral Aqueduct
