Anatomy Lab 1

collects sounds wave

auricle (pinna)

Auditory Canal

carries sound wave to the tympanic membrane ( eardrum)

Tympanic membrane (eardrum)

collets sounds and cause it to vibrate

receives sounds from Tympanic membrane and transmits it to the incus or bumps to agaist incus

malleus

pass information from mallus to stapes

incus

stapes

pushes against oval window, creates waves in the fluid

oval window

carries sound vibration to cochlea

auditory tube

equalizes preasure

round window

acts as preassure release valve to help fluid inside the cochlea in order to not vibrate

semicircular ducts/canals

sense of ratation

cochlea

sense of sound

vestibule

sense of gravity and acceleration

vestibulocochlear nerve

electrictal signals and balance from inner ear for the brain

vestibular branch

transport action potential from vestibule and semicircular ducts to the brain

conchlear branch

transport action potentials from cochlea to brain

movement of superior oblique

abducts eye

movement of superior rectus

elevates eyes

movement of medial rectus

adduction of eye

movement of lateral rectus

abduction

movement of inferior rectus

depression

movement of oblique rectus

elevates/ abducts eye

anterior cavity

filled with aqueous humor

aqueous humor

clear, watery fluid that fills front part of eyes bw cornea and lens

cornea

protects the eye, bends light

pupil

hole, regulate the amount of light that enters the eye

iris

give color of eyes and controls how much light enters

it is behind the iris and it is filled with vitreous humor

Posterior cavity

vitreous humor

gelatinous substance

controls lences to contract or relax

ciliary bodies

lens

bends light and it is for perception

retina

photorecepters located here

Optic disc (blind spot)

Optic nerves enters and no photo receptors

optic nerve

transmite visual information to the brain

Choroid

vascular layer, blood vessels, nutrients and waste exchange

white part of eyes, protective layer, and it is rubbery

sclera

Branchial nerves

Axillary

Musculocutaneous

Radial

Median

Ulnar

Lunbar nerves

Femoral

saphenous

Sacral

Sciatic

common fibular

Deep fibular

superficial fibular

tibial

Axillary, location on body and muscles innervated

Location: upper arm

Innervated: deltoid

Musculocutaneous location, and innervation

Location: arms, shoulder

innnervated: biceps brachaii

Radial location and innervation

location: arm

Innervated: triceps brachaii

Median location and innervation

location: arm

Innervated: palmaris longus

Ulnar location and innervation

Location: arm

innervated: flexor carpi ulnaris

femoral location and innervation

location: thigh

innervation: quadraceps femoris

Saphenous location and innervation

location: inner thigh

innervation: sensory only

sciatic location and innervation

location: trunk to thigh

innervation: adductor magnus

Common fibular location and innervation

location: lateral knee

innervation: biceps femoris

Deep fibular location and innervation

location: shin

innervation: tibialis anterior

Superficial fibular location and innervation

location: lateral shin

innervation: fibularis longus

Tibial location and innervation

location: popliteal

innervation: soleus

CN I name and function

olfactory and sensory only

CN III name and function

oculomotor and eye movement and pupil reflex and motor only ( no lateral rectus and superior oblique)

CN V name and function

trigeminal and face sensation and chewing

Mix nerve

CN VII name and function

face movement and taste

Mixed

CN IX name and function

Glossopharyngeal, throat sensation, throat sensation and swallowing

Mixed

CN XI accessory action and function

Neck and shoulder movement

motor

CN II name and function

Optic, vision

sensory

CN IV name and function

trochlear, eye movement (superior and oblique muscle)

Motor only

CN VI name and function

abducens, eye movement

Motor

CN VIII name and function

Vestibulocochlear, hearing and balance

sensory only

CN X name and function

Vagus, sensory and motor of throat, thoracic and abdominal organs

Mix

CN XII name and action

hypoglossal, tongue movement

Motor only