anatomy lab 7

12 cranial nerves in order

olfactory optic oculomotor trochlear trigeminal abducens facial vestibulocochlear glossopharyngeal vagus accessory hypoglossal

olfactory

sensory
smell

optic

sensory
sight

oculomotor

motor
most eye movement

trochlear

motor
moves eye

trigeminal

both sensory and motor
face sensation, mastication

abducens

motor
abducts eye

facial

both sensory and motor
facial expression and taste

vestibulocochlear

sensory
hearing and balance

glossopharyngeal

both sensory and motor
taste and gag reflux

vagus

both sensory and motor
gag reflux and parasympathetic innervation

accessory

motor
shoulder shrug

hypoglossal

motor
swallowing and speech

acronym for cranial nerves

oh oh oh to take a family vacation go vegas and hawaii

acronym for cranial nerves functions

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

how many pairs of spinal nerves are there?

31 pairs

how many pairs of cervical plexus nerves are there

4 : C1-C4

how many pairs of brachial plexus nerves are there

5 : C5-T1

how many pairs of lumbosacral plexus are there?

8 : L1-S3

brainstem

4

cerebrum

1

cerebellum

3

diencephalon

2

longitudinal fissure

1

gyrus (hills)

2

sulcus (valleys)

3

corpora quadrigemina

1

corpus callosum

2

thalamus

3

diencephalon

4

hypothalamus

5

mamillary body

6

midbrain

7

brainstem

8

pons

9

medulla oblongata

10

cerebellum

11

epithalamus

12

pituitary gland

1

cerebellum

2

corpus callosum

1

fornix

2

thalamus

3

pineal gland

4

corpora quadrigemina

5

mamillary gland

6

pons

7

medulla oblongata

8

lateral ventricle

4

3rd ventricle

3

cerebral aqueduct

1

4th ventricle

2

central sulcus

1

lateral sulcus

2

descending neuron with cell body

1

sensory receptor

2

afferent neuron

3

efferent neuron

4

effector organ

5

olfactory

1

optic

2

oculomotor

3

trochlear

4

trigeminal

5

abducens

6

facial

7

vestibulocochlear

8

glossopharyngeal

9

vagus

10

accessory

11

hypoglossal

12

cerebellum

1

musculocutaneous nerve

2

lateral cord

3

radioaxial nerve

4

posterior cor

5

medial cord

6

median nerve

7

ulnar nerve

8

central sulcus

1

parietal lobe

2

frontal lobe

3

parieto-occipital sulcus

4

lateral fissure

5

occipital lobe

6

temporal lobe

7

conus medullaris

1

cauda equina

2

sciatic nerve

3

number of spinal nerves and their breakdown

31 pairs
8 cervical
5 thoracic
12 lumbar
5 sacral
1 coccyx

number of pairs and branches in cervical plexus

4 pairs : C1-C4
3 branches

phrenic nerve

last nerve of cervical plexus (C4)
only nerve that controls movement of the diaphragm
Important for breathing

number of pairs and branches in brachial plexus

5 pairs (C5-T1)
5 major branches

major branches of brachial plexus

axillary
radial
musculocutaneous
ulnar
median

number of pairs in lumbosacral plexus and breakdown

8 pairs L1-S3
lumbar: L1-L4
sacral: L4-S3

4 major nerves of lumbosacral plexus

obturator
femoral
tibial
common fibular

sciatic nerve

tibial and common fibular

saphenous nerve

biggest/longest branch of femoral nerve

dermatome

area of skin primarily supplied by one spinal nerve

plexus

many nerves branching and intersecting with one another