Human Anatomy Unit 3 Lab

cerebrum

cerebrum

conscious thought and origin of intellectual functions

dura mater

arachnoid mater

pia mater

longitudinal fissure

cerebral hemispheres

left: language + analytics right: creativity

grey mater (brain)

white mater (brain)

lateral ventricles

corpus callosum

olfactory bulbs

olfactory bulbs (sheep)

optic nerves

optic chiasma

optic chiasma (sheep)

optic tract

frontal lobe

voluntary movement, focus, decision making, personality, etc.

central sulcus

lateral sulcus

parietal lobe

general sensory functions

occipital lobe

visual info and memories

temporal lobe

hearing and smell

insula

interoceptive awareness, emotion, empathy, taste

precentral gyrus

primary motor cortex (voluntary skeletal)

postcentral gyrus

primary somatosensory cortex

choroid plexus

produces CSF (ependymal cells)

interventricular foramen

cerebral aquaduct

diencephalon

pituitary gland

thalamus

main relay point for sensory information (except olfaction)

third ventricle

hypothalamus

controls body temp, appetite, water balance, sleep, blood vessels, emotions

pineal gland

secretes melatonin: regulates circadian rhythm

corpora quadrigemina

superior colliculi

inferior colliculi

cerebellum

fine-tunes mvoements

arbor vitae

vermis

folia

brain stem

pons

pontine respiratory center + superior olivary complex

medulla oblongata

regulate breathing, heart vessels

fourth ventricle

trigeminal nerve

gray mater (spinal cord)

white mater (spinal cord)

dorsal roots

ventral roots

rootlets

dorsal root ganglia

spinal nerves

dorsal rami

see red arrow

ventral rami

see red arrow

rami communicantes

sympathetic trunk

spinal cord (with multipolar motor neuron)

cervical plexus

phrenic nerve

brachial plexus

radial, ulnar, median nerve

lumbar plexus

femoral nerve

sacral plexus

sciatic nerve

extrinsic eye muscles

lacrimal gland

lacrimal sac

lacrimal canaliculi

conjunctiva

upper palpebrae

lower palpebrae

cornea

sclera

choroid

capillaries supplies retina

ciliary body

changes lens shape

iris

lens

suspensory ligaments

see fine lines

anterior cavity

filled with aqueous humor

anterior chamber

see A

posterior chamber

see B

posterior cavity

filled with vitreous humor

retina

optic nerve

macula lutea

fovea centralis

see inside macula lutea; highest cones

optic disc

ora serrata

see green line

tapetum lucidum

external ear

pinna

skin covering M

external auditory meatus

produces cerumen

middle ear

tympanum

malleus

incus

stapes

eustachian tube

inner ear

cochlea

organ of hearing

spiral organ of Corti

semicircular canals

be able to identify posterior, anterior, and lateral