the sense organs and it's parts

THE SENSE ORGANS AND

IT'S PARTS

OBJECTIVES At the end of the lessons the pupils may be

able to:

a. Identify the 5 senses and their parts.

b. Classify the parts of the five senses.

c. Distinguish what senses to be used.

THE SENSE ORGANS

AND IT'S PARTS

THE SENSE ORGANS AND IT'S PARTS

THE SENSE ORGANS AND IT'S PARTS

We have different sense

organs which help us do many

things. Each sense organ has

different parts which perform

particular function.

THE SENSE ORGANS AND IT'S

PARTS

THE SENSE OF SIGHTEYES

EYES: the sense of sightOur eyes help us see our surroundings. It is very important because we learn about the world through this senses.

THE SENSE ORGANS AND IT'S PARTS

Parts of the Eye:

Eyelids- it open and close the eyes to protect the eyes from too much light.

Eyelashes- a tiny hairs in the eyelids which blocked dust and insect from getting in.

THE SENSE ORGANS AND IT'S

PARTS

THE SENSE ORGANS AND IT'S PARTS

Parts of the Eye: Eyebrows- a hair above the eyes which

prevent water from running to the eyes.

Cornea- a transparent covering in our eyes. It permits light to enter in our eyes so we can see the things around us.

THE SENSE ORGANS AND IT'S PARTS

Parts of the Eye:

Iris- the colour part of the eye, it controls the amount of light entering the pupil by making the pupil bigger or smaller.

Pupil- located at the middle of the Iris. The light that entered the cornea goes inside the pupil.

THE SENSE ORGANS AND IT'S PARTS

Parts of the Eye:

Optic Nerves- it send messages to the brain so that we can recognize the object we saw.

THE SENSE OF

SMELL

NOSE

THE SENSE ORGANS AND IT'S

PARTS

NOSE: the sense of

smellThe nose makes us smell

different things. This sense related to the

sense of taste. This is the reason why you have

difficulty in tasting food when you have colds.

THE SENSE ORGANS AND IT'S PARTS

Parts of the nose

Nostrils-The two opening in our nose. It is where air enters.

Nasal Cavity- A path where air pass.

THE SENSE ORGANS AND IT'S

PARTS

Cilia-A tiny hair that attatch at the surface of nasal cavity.This hairs filters the air by blocking dust particles and small animals from entering the nose.

Mucus Membranes-Found at the surface of nasal cavity which moisten the air and makes it warm.

THE SENSE ORGANS AND IT'S

PARTS

Parts of the nose

Olfactory Nerves-It detects the air coming in. This nerves send the smell sensation to the brain. The brain interprets the smell and we finally recognize what the smell is.

THE SENSE ORGANS AND IT'S PARTS

Parts of the nose

SENSE OF HEARING

EARS

THE SENSE ORGANS AND IT'S PARTS

The ears catches sound waves. It makes us

hear different sounds.

THE SENSE ORGANS AND IT'S PARTS

Parts of the Ear

Outer Ear- the ear we see in our heads. Where sounds from the sorroundings are caught.

Ear Canal- a certain tuve where the sounds travel.

THE SENSE ORGANS AND IT'S PARTS

Ear Drum- located at the end of the Ear canal. When sounds waves hit the eardrum, it will vibrates.The motion of the eardrum causes three small bones in the middle ear to move.

THE SENSE ORGANS AND IT'S PARTS

Parts of the Ear

Auditory Nerves- A part of the ear where signals were send.This nerves connected to the brain where it recieves the message from the auditory nerves we can tell the sounds we heard.

THE SENSE ORGANS AND IT'S PARTS

Parts of the Ear

THE SENSE OF TASTE

TONGUE

THE SENSE ORGANS AND IT'S PARTS

Our tongue helps us taste different kinds of food

THE SENSE ORGANS AND IT'S PARTS

Parts of the tongue

Taste Buds-Found at the surface of the tongue.This are actually nerve endings which can recognize different taste.When we eat something these nerves are able to detect the taste of the food by sending message to the brain.

THE SENSE ORGANS AND IT'S PARTS

Different Taste of

Taste Buds

THE SENSE ORGANS AND IT'S PARTS

Tip of the tongue- Taste buds which are sensetive to sweet taste.

Side of the tongue-Taste buds which are sensetive to salty taste.

THE SENSE ORGANS AND IT'S PARTS

Different Taste of Taste Buds

Back of the togue-It can datect bitter foods. Sides of the tongue near the back-Taste

buds sensetive to sour foods.

THE SENSE ORGANS AND IT'S PARTS

Different Taste of Taste Buds

SKIN SKIN

THE SENSE OF

TOUCH

THE SENSE ORGANS AND IT'S PARTS

Our skin is responsible for our sense of touch.

It protects the body from heat and cold pressure.

THE SENSE ORGANS AND IT'S PARTS

THE SENSE OF TOUCH:

SKINSKIN

Main Layers of the Skin

THE SENSE ORGANS AND IT'S PARTS

Epidermis-The skin that we can see and touch.It is made up of daed cells which are rubbed away from the skin.They are replaced by newones below.

THE SENSE ORGANS AND IT'S PARTS

Main Layers of the Skin

Dermis- It is protected by the epidermis. It composed of live cells. It is thicker than the epidermis. It is where you can find blood vessels

and nerve ending. The nerves receive the

sensation of touch and send it to the brain. The brain tells us the feeling we felt touching something.

THE SENSE ORGANS AND IT'S PARTS

Main Layers of the Skin

REFERENCES

Book:Ruth G. De Lara Science forEveryone.84 Isaroy Street,Sta Mesa Heights Quezon City:Fabi’s Enterprises,1997

THANK YOU !

&GOD BLESS

BY!!!!!