Anatomy Lab 9

What are neurons?

cells within nervous system that actually propagate signals

What are neuroglia?

cells within nervous system that support everyday function and maintenance of the nervous system

B

cell body (soma)

2

nissl bodies (chromatophilic substance)

6

dendrites

5

axon

9

myelin sheath

synapse

2

synaptic vesicle

A

arachnoid mater

B

(fat in) epidural space

C

dura mater

D

subdural space

H

pia mater

E

gray matter

F

white matter

G

spinal cord

A

cervical enlargement

B

lumbar enlargement

C

conus medularis

D

cauda equina

4

cervical plexus

3

brachial plexus

2

lumbar plexus

1

sacral plexus

1

auricle/pinna

12

external auditory canal

4

tympanic membrane

3, 2, and 5

auditory ossicles

3

malleus

2

incus

5

stapes

11

auditory/Eustachian tube

6

semicircular canals

7

cochlea

7

oval window

11

vestibule

tectorial membrane

round window

B and C

fibrous tunic

B

cornea

C

sclera

E

posterior chamber

A

Anterior chamber

D

vitreous humor

F

suspensory ligaments

G

lens

Fluid in A

aqueous humor

A, B, and ciliary bodies

vascular tunic

A

choroid

B

iris

C

pupil

B, G, F, and E

sensory tunic

B

retina

G

macula

F

central fovea (fovea centralis)

E

optic disc

D

ciliary bodies

A/H

optic nerve

E

olfactory epithelium

F

nasal cavity

C

cribriform plate

D

olfactory nerves

A

olfactory bulb

B

olfactory tracts

taste bud/gustatory cell

spiky parts

papillae