Digestive system
Respiratory system
The circulatory system
The excretory system
Healthy habits.True or False?
100

It is a muscular organ that moves food around our mouth.

Tongue

100

When we breathe out we eliminate...

Carbon dioxide

100

Particles that join together when there is a cut in the skin.

Platelets.

100

It helps to keep our blood clean and healthy.

Urinary system.

100

Smoking is very healthy.

False.

200

When we swallow, the bolus passes into a long, flexible tube called...

Esophagus.

200

It is a long tube that goes down into the chest.

Trachea

200

It carries blood from the capillaries to the heart.

Veins

200

Where the urine is stored.

Bladder.

200

The nutrients are...

Proteins, carbohidrates, fats, vitamins and minerals.

300

Flap of cartilage

Epiglottis

300

The traquea is divided into two smaller tubes called...

Bronchi.

300

It is a powerful pump that beats between 60 and 100 times per minute.

Heart.

300

When we urinate, the urine leaves the bladder through a tube called ...

Urethra.

300

You have to drink 3 litres of water at least per day.

False.

400

When a bolus of food reaches the stomach, it combines with...that break down the food and kill dangerous bacteria.

Gastric juices

400

At the end of each bronchiole, there are tiny air sacs called...

Alveoli.

400

It stops the blood from flowing backwards.

Valve.

400

Some people have problems because their...cannot remove enough waste from their blood.

Kidneys.

400

You have to do exercise three or more times per week.

True.

500

Food waste that the body does not need passes into the...

Large intestine.

500

When we inhale (breath in) the diaphragm...

contracts.

500

The heart pumps oxigenated blood to the rest of the body.

Systemic circulation.

500

Tiny holes in the epidermis.

Pores

500

You have to eat hamburgers from Mac Donald every day.

False.