The document summarizes the five basic senses - sight, hearing, smell, taste, and touch. It describes how each sense works, from light entering the eye and sounds entering the ear, to smell receptors detecting chemicals and touch nerves sensing temperature. It also covers the central nervous system, brain parts and their functions, and common diseases including how they are transmitted and prevented.

5.  Sight
 1 light enters our eye through the
cornea and the pupil
 2 the iris is a muscle that makes the pupil
bigger or smaller
 3 the lens focuses the light wich allows
images
 4 nerve receptor in the retina send this
imformation along the opic nerve to our
brain

6.  Hearing
 1 sound waves enter our enter our ear
through the auditory canal and make the
eardrum vibrate
 2 this vibration causes the three small
bones in our middle ear to vibrate
 when these vibrations 3 the colchea
are transformed into electrical signals
 4 the auditory nerve sends these
signals to our brain

7.  Smell and taste
 Our sense smell detects chemical
in the air thorought our notrils the
nerve receptors send this
imformation along the olfatory
nerve to our bbrain
 The receptors detect diferent
tastes bitter sour salty and sweet

8.  Touch
 The dermis contains nerves vesels these
nerves detect sensations such as
temperature and send this imformation
to our brain

9.  The cental nervous system is made up of two
parts the brain and the spial cord
 The brain is protected by the cranium o skull
 The brain stem controls involuntary movements such
as breathing digestion or the beating of our heart
 Spinal cord our protected by the vertebrae and
controls reflex actions
 The cerebrum is the biggest part of our brain it controls
thoughtsemotions language and beaviour it also controls
our voluntary movements
 The cerebellum controls balance movement
and coordination

11. Infecttious diseases are caused by hamful
organisms called pathogens
Some bacteria cause tetanus
Infectious diseases spread easily from one
person to another if someone coughs o sneezes
vithout covering his moutch or nose pathogens
can be nhaled by another person
Malaria is a cammon tropical diase transmitedby
mosquitoe
Salmonella is transmited though contaminados
foods suf a egg or chikent

12.  Allergy is a reaction that some people
have when they come into contact witch
subtances
 Cancer is another non infectious diseases
in wich the body cells begin to develop
 Heart disease lifestyle such has eating
fast food
 Mental diseases such asdepression and
degenerative conditions
 Diabetes is generally a lifelong illnes that
involve hight amounts insuling

13.  Eat five times a day three meals breakfas
lunch dinner
 Do exercise it is importantto do exercise
regularly this might involve doins sport
 Sleep enought when we sleep the body
can repairitsell and grow and sleep 11
hours
 Keep clean we was our body to remove
dirt bacteria and sweat

14. prevention is better than cure
regular check ups and vaccinations will
protect you from certain diseases
Game over computer games a video
games but the harmful if you play them
to ofteen
Say no alcohol and tabaco cause serious
problem to the brain

15.  Advancesin meddicine 1798
vaccines were discovered 1818 lovis
partvr created he first vaccinate
renicillim alexander fleming
 Diagnosis of illneses diagnosis is the act
ofidentifyng and illnes symtoms and test
 Treatment of illneses alexander
fleming made accidental discovery he
niticed that when mould

16. 
FIN