Let´s learn about

HUMAN SYSTEMS

Level 4th

. C.E.I.P Europa

By MACS

2

MAIN LANGUAGE

digestive feces blood ovaries

circulatory expel (verb) heart uterus

excretory mix (verb) blood vessels vagina

reproduction oxygen arteries testes

respiratory breathe capillaries penis

digestion carbon dioxide veins prostate

esophagus trachea waste breasts

stomach bronchial tubes kidneys softer voice

small intestine lungs bladder wide hips

large intestine inhalation urethra brush your teeth

anus expiration urine do exercise

DIGESTIVE SYSTEM

1. SYSTEMS OF THE BODY

The systems of the body enable us to perform vital functions. We use

the systems of the body in order to process substances from our environment as

either nutritional or waste products. Our bodies are nutritious if we eat healthy

and have a balanced and complete diet.

There are five systems of the body:

1. Digestive System.

2. Circulatory System

3. Respiratory system.

4. Excretory System.

5. Reproduction System

SYSTEMS OF THE BODY

RESPIRATORY SYSTEM

CIRCULATORY SYSTEM

EXCRETORY SYSTEM

REPRODUCTION SYSTEM

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1.1. DIGESTIVE SYSTEM

Human beings need energy to live. We eat food to get

energy. When we eat, our body digests the food and

produces energy.

Digestion is the process by which food

substances are changed into nutritional substances

that our body needs.

• The systems of the body enable us to perform vital functions.

• There are five systems of the body: Digestive System, Circulatory System,

Respiratory System, Excretory System and Reproduction System.

1.1.1 Organs of the Digestive System

The digestive system is composed of six organs, they are:

1. Mouth: food enters our body through our mouth.

2. Esophagus: a long tube between our mouth and the

stomach.

3. Stomach: it is like a bag and it secretes gastric juice, the

stomach receives food from the esophagus and mixes it

with this gastric juice.

4. Our intestine is a long tube. It is composed of two parts:

- Small intestine: it is about seven metres long. The small

intestine absorbs the nutritional substances.

- Large intestine: it is about one metre and a half long. It

takes the bad substances from our body.

5. Anus: it is at the end of the large intestine. Feces are

eliminated through the anus.

Humans eat food in

order to get energy.

Our body digests the

food.

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1.1.2 Stages of digestion

1. Digestion begins in the mouth. Our teeth cut

and chew the food. Our tongue mixes the food with

saliva.

2. Then the food goes down the esophagus and

goes to the stomach.

3. In the stomach, the food is mixed with a liquid

(gastric juice).

4. In the small intestine, the food is divided into

nutritional substances that our body needs.

5. The parts of food that we do not need go into

the large intestine. They are transformed into feces

and they are expelled through the anus.

After eating, we must wait two hours before doing

physical activities. Our digestion takes time!

stomach

esophagus mouth

liver

small intestine

These are our digestive organs

When we eat we do

the digestion process.

It takes about 2

hours!

large intestine

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ACTIVITIES 1.- Write.

2.- Read and write.

a) Food circulates through this from the mouth to the stomach. _____________

b) Our teeth are in this. _____________

c) In this part the food is mixed with a liquid called gastric juice. ____________

d) Feces are expelled through this. _____________

e) The food is divided into nutritional substances that

our body needs. _____________

• Digestion is the process by which food substances are changed into

nutritional substances that our body needs.

• The most important organs are: mouth, esophagus, stomach, intestine

(small and large intestine) and anus.

• The digestion process has different stages from the mouth to the anus. It

takes about 2 hours!

_________________

_________________

_________________

_________________ _________________

_________________

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3.- Find the organs of the digestive system.

T E E T H S M R F O I L

I H B O W V N N E W Z L

N V O S S T P L S H L B

T Z H G U E W Q T K H L

E N K X G U S U U C M S

S H B Q A I O D A S U Y

T G Y I H M T M O K A P

I R P K P K O C X B B C

N E H K O T G Y K S S T

E T P J S T Y V U C T A

F B S M E H M N B N T U

H V T U C F A Y W S A S

1.2. RESPIRATORY SYSTEM

All living things need oxygen to live, without oxygen

we cannot survive more than few minutes. Thanks to our

Respiratory System we can get oxygen from the air.

When we breathe, our body takes oxygen that we

need to live and eliminates carbon dioxide that we do not

need.

The Respiratory System is the system that takes

oxygen (essential for our lives) and eliminates carbon

dioxide (we do not need it).

When we breathe, we

take oxygen and

eliminate carbon dioxide

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1.2.1. Organs of the Respiratory System

The Respiratory System is composed of: nose, nostrils, trachea,

bronchial tube and lugs (right and left).

Air enters our body through our nose and mouth. It goes through the

nostrils. It goes down through the trachea and bronchial tubes and into

the lungs. Finally, oxygen goes to our blood.

nostrils and mouth

trachea

lungs

bronchial tubes

1.2.2. Breathing

When we breathe, we can differentiate

two movements:

1. Inhalation: our lungs fill with air, we

take oxygen from the atmosphere.

2. Expiration: air leaves our lungs,

giving off carbon dioxide. Inhalation Expiration

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ACTIVITIES 4.- Write.

• How does our Respiratory System work? Explain the process.

_________________________________________________________

______________________________________________________________

______________________________________________________________

______________________________________________________________

______________________________________________________________

______________________________________________________________

_____________________________________________________________ .

• The Respiratory System is the system that takes oxygen (necessary in our

lives) and eliminates carbon dioxide (we do not need it).

• The Respiratory System organs are: nostrils, mouth, trachea, bronchial

tubes and lungs.

• There are two movements when we breathe: inspiration and expiration.

_________________ _________________

_________________

_________________

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5.- Match.

• It is the gas that we breathe

• There are two in our body

• The process through which our lungs fill with air

• When air leaves our lungs

• A gas that we eliminate from our body

• Carbon dioxide

• Expiration

• Oxygen

• Lungs

• Inhalation

1.3.CIRCULATORY SYSTEM

Blood is a very important red liquid in our

body, it is red and carries oxygen and nutrients to

different parts of our body.

Blood goes around our body, this is called

circulation.

The Circulatory System is responsible for

blood circulation.

1.3.CIRCULATORY SYSTEM

The main organ of this system is our heart,

the Heart is an involuntary muscle. It pumps

blood around our body and it is between our two

lungs.

Blood circulate around our body inside what

are called blood vessels. There are three types

of blood vessels: arteries, veins and capillaries.

• Arteries: they take the blood from our heart

to the rest of our body.

• Veins: take the blood from our body back to

the heart.

• Capillaries: they connect veins and arteries.

Our heart pumps

blood around our body.

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heart

arteries (red)

veins (blue)

• Blood carries oxygen and nutrients to different parts of our body.

• The Circulatory System is responsible for blood circulation.

• The Circulatory System organs are: heart and blood vessels (arteries,

veins and capillaries).

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ACTIVITIES 6.- Complete:

7.- Answer these questions.

a) What does blood carry? _________________________________________ .

b) What is “circulation”? ___________________________________________

________________________________________________________ .

c) What is the main organ in the Circulatory System? ____________________ .

d) What is the function of the heart? __________________________________

_______________________________________________________________ .

e) Where is our heart? ____________________________________________ .

f) What bones protect our heart? ____________________________________ .

g) What are the three types of blood vessels? __________________________ .

h) What is the function of our arteries? ________________________________

______________________________________________________________ .

8.- Find the circulatory organs.

Y A N A S L H E A R T A J R M N T V V I B U I L T T I B D F O K U Y E G H E O L D K O E U H Z W V R U K H W T R J C L B K I B Y C B K G P M J K V E N M L O D O M Q W E G S E I R A L L I P A C D F J O U Q S A H Y E P S T M P L A X Z V O I M

CIRCULATORY SYSTEM

________________ ________________

_____________ _____________ _____________

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1.4. EXCRETORY SYSTEM

Excretion is the process through which

we clean our blood and eliminate waste from our

body.

The organs are the kidneys, the bladder,

and the urethra.

The kidneys clean our blood and make the

urine. The urine now goes to the bladder, where it is

stored and later is expelled from the urethra.

urethra

kidneys

bladder

1.5. REPRODUCTIVE SYSTEM

All living things can reproduce. Reproduction is the

process through which living things produce other living

things with similar characteristics.

The Reproductive System is a set of organs which

allow us to reproduce. Men and women have different

reproductive organs. The female reproductive system

is composed of these organs: ovaries, uterus, and

vagina. The male reproductive system is composed of

these organs: penis, testes, and prostate.

Members of a family

have similar characteristics

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FEMALE REPRODUCTIVE SYSTEM MALE REPRODUCTIVE SYSTEM

1.5.1. Differences between men and women

Other differences between sexes:

WOMEN

• Women also have breasts, a softer voice, less hair,

and wider hips than men.

MEN

• Men have a stronger voice, more hair, and a wider

chest than women.

uterus

• Excretion is the process through which we clean our blood and eliminate

waste from our body.

• The organs of our Excretory System are: kidneys, bladder and urethra.

• Reproduction is the process through which living things produce other

living things with similar characteristics.

• The female reproductive system is composed of these organs: ovaries,

uterus, and vagina. The male reproductive system is composed of these

organs: penis, testes, and prostate.

vagina

penis

testes

prostate ovaries

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ACTIVITIES

9.- Write and colour.

_____________

_____________

_____________

________________

________________

________________

________________

________________

________________

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10.- Find reproductive organs.

djacdajlnfjkdnjkpenisaskfpjfipqpmdndhavaginamajdgcbffgwtdfsvuterusmnshakiafaobladderkddkdnbdhewtwradajotestesnbcvxdaswqghdlggnfjprostatemfnhydwretsgbcvfhnjmskshnbgterwdafgshgbdgcfvxmljoplgjovariesnfhdshsfsbcgftsysmjdndkidneyssjaoncvfdrwyw

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ACTIVITIES

11.- Complete.

12.- Classify these organs

Digestive System

Respiratory System

Circulatory System

Excretory System

Reproduction System

HUMAN

SYSTEMS

________________

RESPIRATORY

REPRODUCTIVE

____________ trachea

____________ _____________

________________

________________

mouth, ____________ ________________________

anus

____________ ________________________

capillaries

____________ ____________

urethra

____________ ____________

uterus ____________ ____________

prostate

esophagus, penis, veins, stomach anus, kidneys, uterus, testes, trachea, prostate, capillaries, heart, mouth, bladder, arteries, nostrils, intestine, bronchial

tubes, lungs, ovaries, vagina

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13.- Explain the digestive process.

________________________________________________

________________________________________________

________________________________________________

________________________________________________

________________________________________________

________________________________________________

________________________________________________

________________________________________________

________________________________________________

________________________________________________

14.- Solve this crossword puzzle. ACROSS 1. A very important red liquid in our body 5. Process through which we clean our blood and eliminate waste from our body. 6. Where the food is mixed. 7. Organ of the male reproductive system. 8. Feces are expelled through it. 11. They connect veins and arteries. 12. The process by which food substances are changed into nutritional substances that our body needs.

DOWN 2. Organs of the female reproductive system. 3. Gas that we take in when we breathe. 4. When our lungs fill with air. 9. There are two of these and they are organs of our Respiratory System 10. An involuntary muscle that pumps blood throughout our body.

15.- Look and write.

1

2

3

4

5

1 2

3 4

5

6

7

8

9 10

11

12

EclipseCrossword.com

__________________

_

__________________

_

2 1

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16.- Match. 1. Feces are expelled.

a) digestion

2. A long tube composed of two parts.

b) arteries

3. It takes about two hours.

c) oxygen

4. A gas that we need to live.

d) kidneys

5. They take the blood from our heart to the rest of our body.

e) penis

6. They clean our blood and make the urine.

f) anus

7. Where the urine is stored. g) bladder

8. An organ of the male reproductive system.

h) intestine

17.- Put in order the sentences. How do you digest a pear?

The parts of the pear that my body does not need go to large intestine.

Then the food goes into the small intestine.

The pear, mixed with saliva, goes down the esophagus.

I chew the pear in my mouth.

At last, the feces are expelled through the anus.

In my stomach, the pear is mixed with gastric juice.

18.- Find the digestive organs.

X M K P G S E Q P E G S E N M N

I S D O C S X M L W R D W S B R

A N F E M R B H T L T F H K D O

S U N A U A N B G E Y C S U N R

I U I M T A N B O M N X E C I G

L N G X P O E L H N L Z A Q A O

S H C A M O T S E F G E Q V A N

H I A I H F A A N B N R I D J S

P I S H G P I V O I E J V F S N

Z S H W L E O H T U O M S A D Y

E S N S E H O S J E L A E O W C

E H E D N H E S E V A T B N P R

R H P P D T S R X A U B K T C S

S P R S N N E Y D M P R V L T Y

T A R I S H E F I L S I S T K C

E E E P I J V K E S C P B X W O

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19.- How can you take care of your systems? Look at the pictures and write. 20.- Tick the correct answer.

a) The process by which food substances are changed into nutritional

substances is….

□ circulation □ digestion

b) The movements of breathing are…

□ inhalation and expiration □ expiration and excretion

c) Digestion begins in the…

□ heart □ mouth

______________________________________

______________________________________

______________________________________

______________________________________

______________________________________

______________________________________

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d) Kidneys are organs of the…

□ Reproduction System □ Excretory System

e) The main organ in the Circulatory System is our…

□ arteries □ heart

21.- Play BINGO!!

heart

ovaries

penis

lungs

mouth

stomach

kidneys

intestine

trachea

esophagous

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22.- Watch this video and choose the correct answer. √

https://www.youtube.com/watch?v=ZBZWgrfZFbU

a) What is this video about?

□ digestive system □ excretory system □ respiratory system

b) The first stage of digestive system...

□ excretion □ breathing □ chewing

c) Food passes through the esophagous and then goes to the

□ esophagous □ stomach □ liver

d) After stomach the food particles goes to...

□ small intestine □ mouth □ pancreas

e) Food particles which are not absorbed goes to...

□ large intestine □ stomach □ ear

23.- Make a project.

1. Choose a Human system and draw it on a big card or stick a picture,

photo….

2. Label and write its parts.

3. Decorate it.

4. Talk to your partners in the class.

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24.- What can you do? Cross .

Do you recognize words and expressions related to the

different systems in the Human Being?

¿Reconoces palabras y expresiones relacionadas con los diferentes aparatos del ser humano?

Can you read information about our five systems and

understand the most important information?

¿Puedes leer información sobre nuestros cinco aparatos y comprender la información más importante?

Can you speak about the different systems and how to

take care of them?

¿ Puedes hablar sobre los diferentes aparatos y como cuidarlos?

Do you talk to your classmates about the different

systems?

¿Hablas con tus compañeros/as diferentes aparatos?

Can you write and make projects about our systems?

¿Puedes escribir y realizar proyectos sobre nuestros aparatos?

Hello!! My friends!! Read and write a cross.

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digestive blood

circulatory heart

excretory blood vessels

reproduction arteries

respiratory capillaries

digestion veins

esophagus waste

stomach kidneys

small

intestine

bladder

large intestine urethra

anus urine

feces ovaries

expel (verb) uterus

mix (verb) vagina

oxygen testes

breathe penis

carbon

dioxide

prostate

trachea breasts

bronchial tubes

softer voice

lungs wide hips

inhalation brush your

teeth

expiration do exercise

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Level 4th

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