HEART DUDDEE(=

the cardiovascular system include the heart,blood and blood vessels

heart-atrian and ventricles

blood-white bood cell, red blood cell and platelets

blood vessels-arteries and veins

the heart is the main organ

the size of heart is like the size of our fist

it is surrounded by fibreous pericardium

EYES DUDE(=

SENSE OF SIGHT

EXTERNAL

*orbit-cone shaped cavity

*lacrimal apparatus-produces and stores tears

*lacrimal gland-transports tears

*conjunctiva-protective membrane

INTERNAL

*aqueous humor

*vitreous humor

*eyeball

1.sclera

2.choroid

3.retina

EARS DUDE(=

SENSE OF HEARING

Ear-responsible for hearing and maintaining our equilibrium or sense of balance

*structures

-external ear

-middle ear/tympanic cavity

-inner ear/labyrint

PARTS OF EXTERNAL EAR

-pinna/auricle

-auditory canal or external auditory

-eardrum/tympanic membrane

MIDDLE EAR CONTAINS THE SMALLEST BONES IN OUR BODY

-hammer

-anvil

-stirrup

INNER EAR HAVE THREE AREAS

-cochlea

-vestibule chamber

-semicircular canals