TOUCH SMELL AND TASTE

TOUCH, SMELL AND TASTE

We use the sense of touch to identity characteristics of objects.

Objects can be:

·         Rough.

·         Smooth.

·         Hot.

·         Cold

We can distinguish between agreeable and painful sensations.

The skin is the sense organ of touch.

The body is covered with skin.

In your skin there are touch receptors that send information to the brain.

Sensitive parts of your body (lips, fingertips…) have more touch receptors.

COPY THE ORANGE BOX AND GLUE YOUR DRAWING

3ºB 13-11-18

The sense organ of the SMELL is the nose.

SMELLS enter  the nose through the NOSTRILS.

SMELLS  reach the OLFACTORY EPITHELIUM  in the NASAL CAVITY

SMELL RECEPTORS are located in the OLFACTORY EPITHELIUM.

SMELL RECEPTORS send signals to the OLFACTORY BULB

↓↓↓↓↓↓

OLFACTORY BULB is in the brain

copy the diagram from page 22and write the names of the

 different parts, then glue it in your notebook

3ºB15-11-18

The sense of TASTE is located in the tongue.

The TONGUE is covered with small bumps called TASTE BUDS.

Thre are specific TASTE BUDS located in different areas of the tongue to distinguish 

different flavours.

                   Copy the orange box from page 23

Copy the diagram from page 23 and write the names of the

 different parts, then glue it in your notebook

    3ºA 21-11-2018