By By mabel aliste herreramabel aliste herrera

Function of Nutrition:Function of Nutrition:

Digestive system Digestive system In charge of In charge of digestiondigestion Respiratory system Respiratory system In charge of In charge of breathingbreathing Circulatory system Circulatory system Transports Transports nutrientsnutrients Excretory system Excretory system In charge of In charge of excretionexcretion

The Food Pyramid:The Food Pyramid:

The Digestive System:The Digestive System: DigestionDigestion is the process in is the process in

which food changes into which food changes into nutrients. It takes place in nutrients. It takes place in the the Digestive SystemDigestive System which which has two parts: has two parts:

The Digestive Tract:The Digestive Tract: Its Its parts are the mouth, the parts are the mouth, the pharynx, the oesophagus, pharynx, the oesophagus, the stomach, the small the stomach, the small intestine and the large intestine and the large intetsine.intetsine.

Glands:Glands: They release They release chemicals. They are the chemicals. They are the salivary glands, the liver salivary glands, the liver and the pancreas.and the pancreas.

Breathing:Breathing:

It´s the process where the body takes in It´s the process where the body takes in oxygen and releases carbon dioxide. oxygen and releases carbon dioxide.

Lung ventilation:Lung ventilation: InhalingInhaling is when air goes is when air goes into the lungs. into the lungs. Exhaling Exhaling sends air out of the sends air out of the lungs.lungs.

Exchange of gases:Exchange of gases: Oxygen breathed in goes Oxygen breathed in goes to the blood and the carbon dioxide from the to the blood and the carbon dioxide from the blood moves to the lungsblood moves to the lungs

Respiratory SystemRespiratory System

Parts of the Respiratory System:Parts of the Respiratory System:

1. Nostrils1. Nostrils 2. Pharynx2. Pharynx 3. Larynx3. Larynx

4. Trachea4. Trachea 5. Bronchi5. Bronchi 6. Lungs6. Lungs

7. Diaphragm7. Diaphragm

Excretion and the excretory system:Excretion and the excretory system:

It´s the elimination of the waste substances collected. The It´s the elimination of the waste substances collected. The excretory system is made up of:excretory system is made up of:

Sweat glandsSweat glands The Urinary system:The Urinary system: made up of made up of Kidneys Kidneys andand Urinary Urinary

TractTract..

1. Kidneys1. Kidneys 2. Ureters2. Ureters 3. Bladder3. Bladder 4. Urethra4. Urethra

Circulation and the Circulatory Circulation and the Circulatory System:System:

CirculatonCirculaton is the is the transportation of blood transportation of blood through the circulatory through the circulatory system carrying nutrients system carrying nutrients and oxygen to all the cells and oxygen to all the cells and collecting waste and collecting waste substances. It´s made up of:substances. It´s made up of:

HeartHeart BloodBlood Blood Vessels:Blood Vessels: Arteries, Arteries,

Veins and CapillariesVeins and Capillaries

Blood:Blood: Blood is a red liquid tissue made up of cells that float in a nutritious liquid Blood is a red liquid tissue made up of cells that float in a nutritious liquid

called plasma.called plasma. Blood plasmaBlood plasma Blood cellsBlood cells: : -Red blood cells-Red blood cells

-White blood cells-White blood cells

-Platelets-Platelets

The heartThe heart

It’s divided into two cavities:It’s divided into two cavities: -Atrium-Atrium -Ventricle-Ventricle

It uses rhythmic systole and It uses rhythmic systole and diastole movements to pump diastole movements to pump blood:-Systoleblood:-Systole

-Diastole-DiastoleThe heart has two atria and two The heart has two atria and two

ventricles. The veins meet at the ventricles. The veins meet at the atria. The arterias leave from the atria. The arterias leave from the ventricles. The heart pumps blood ventricles. The heart pumps blood using systole an diastole.using systole an diastole.

Human circulationHuman circulation Pulmonary circulationPulmonary circulation: The blood : The blood

with carbon dioxide comes out of with carbon dioxide comes out of the right ventricle through the the right ventricle through the PULMONARY ARTERY. It picks PULMONARY ARTERY. It picks up oygen in the ALVEOLI OF THE up oygen in the ALVEOLI OF THE LUNGS and it reaches the left LUNGS and it reaches the left atrium through the PULMONARY atrium through the PULMONARY VEINS.VEINS.

Systemic circulationSystemic circulation: : The blood The blood with oxygen leaves the left ventricle with oxygen leaves the left ventricle through the AORTA and distributes through the AORTA and distributes to all the cells through the BLOOD to all the cells through the BLOOD CAPILLARIES. It returns to the CAPILLARIES. It returns to the heart through the VENA CAVA.heart through the VENA CAVA.

Eat healthy! Eat healthy!

THE ENDTHE END