Brain, Spinal Cord, and Cranial Nerves

cerebrum

1

diencephalon

2

cerebellum

3

brainstem

4

sensory and movement

cerebrum function

relays info and homeostasis

diencephalon function

coordinates movement

cerebellum function

homeostasis, reflexes, monitors movement, relays info

brainstem function

outer gray matter in cerebral

1

inner gray matter in cerebral

2

cerebral white matter

3

longitudinal fissure

red line

basal nuclei

inner gray matter in cerebrum

cerebral cortex

outer gray matter in cerebrum

cranial bones that protect them

lobes named after

frontal lobe

6

central sulcus

A

parietal lobe

1

parieto occipital sulcus

B

lateral sulcus

C

occipital lobe

2

temporal lobe

5

frontal lobe

1

central sulcus

A

parietal lobe

3

parieto occipital sulcus

B

occipital lobe

4

lateral sulcus

C

temporal lobe

2

gyrus, elevation

1

sulcus, groove

2

fissure, deep groove

3

association fibers

blue

commissural fibers, corpus callosum

green

projection fibers

purple

thalamus

1

epithalamus

3

pineal gland

4

mammillary body

5

pituitary gland

6

infundibulum

7

Hypothalamus

2

arbor vitae

cerebellum white matter

cerebellar cortex

cerebellum gray matter

midbrain

1

pons

2

medulla oblongata

3

skin of scalp

1

periosteum

2

bone of skull

3

periosteal layer

4

meningeal layer

5

dura mater

6

arachnoid mater

7

pia mater

8

subarachnoid space

9

arachnoid villus

10

lateral ventricles

1

third ventricle

2

cerebral aqueduct

3

fourth ventricle

4

central canal

5

choroid plexus

purple

choroid plexus of each ventricle produces CSF

CSF circulation step 1

CSF flows through ventricles and into subarachnoid space via median and lateral apertures

CSF circulation step 2

CSF flows through subarachnoid space

CSF circulation step 3

CSF absorbed into dural venous sinuses via arachnoid granulations

CSF circulation step 4

foramen magnum

travels through intervertebral foramen

begins at foramen magnum

top arrow

spinal nerves, 31 pairs

middle arrow

ends at L2 level of vertebral column

bottom arrow

cervical spinal nerves

1

thoracic spinal nerves

2

lumbar spinal nerves

3

sacral spinal nerves

4

cervical enlargement

5

lumbar enlargement

6

conus medullaris

7

cauda equina

8

filum terminale

9

pia mater

1

arachnoid mater

2

dura mater

3

subarachnoid space

4

subdural space

5

funiculus: dorsal, lateral, ventral

white matter in spinal cord

sensory up to brain, motor down from brain

white matter in spinal cord tracts

horn: dorsal, lateral, ventral

gray matter in spinal cord

oh once one takes the anatomy final very good vacations are happening

nerve Mnemonic

some say marry money but my brother says big brains matter more

fiber type Mnemonic

smell

nerve I function

vision

nerve II function

pupil dilation/constriction

nerve III function

lateral and inferior eye movement

nerve IV function

mastication (chewing), sensation of face

nerve V function

lateral movement of eye

nerve VI function

facial expression, salivary glands, taste anterior of tongue

nerve VII function

hearing and balance

nerve VIII function

swallowing, parotid (salivary) gland, taste posterior of tongue, monitors BP, breathing rate

nerve IX function