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Nutrition by Miguel
Nutrition by Miguel
Nutrition by Miguel
Nutrition by Miguel
Nutrition by Miguel
Nutrition by Miguel
Nutrition by Miguel
Nutrition by Miguel
Nutrition by Miguel
Nutrition by Miguel
Nutrition by Miguel
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Nutrition by Miguel

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  • 1. Miguel Matilla Rodríguez
  • 2. The function of nutrition is essential tolife.Nutrients give our cells all the energy they need
  • 3. The digestive system1) The mouth has salivary glands that produce saliva,teeth that chew food and a tongue that mixes chewed food with saliva to form a ball of food2) The pharynx connects the mouth and the oesophagus3) The oesophagus transports the food to the stomach4) The stomach is where the food mixes with gastric juices5) The liver secretes bile6) The pancreas helps in the digestion of proteins7) The small intestine is the longest part of the digestive tract. Nutrients pass into the blood through its walls8) The large intestine absorbs wather which passes to the blood.9) 9) And finaly , undigested substances are expelled through the anus
  • 4. The Respiratory system1) The nostrils filter the air2) The pharynx connects the larynx , the oesophagus and the trachea3) The larynx contains the vocal cords.4) The trachea takes air into the bronchi.5) The bronchi are two branches of the tracea.6) The lungs are spongy organs made up of small sacs called alveoli.7) When we breathe , the oxygen in the air goes to the blood through to the alveoli , and the carbon dioxide from the blood is released outside the body8) The diaphragm is the muscle that creates the movements involved in breathing
  • 5. The excretory systemThe urinary system Sweat glands1) The kidneys remove waste They produce sweat substances from the blood and they make urine2) The ureters take urine from the kidneys to the bladder3) The bladder stores the urine4) The urethra connects the bladder to the outside
  • 6. The Circulatory system Transports nutrients and oxygen to our cells. It is made up of the heart , blood and blood vessels.
  • 7. The HeartThe heart is a muscular organ that pumps bloodaround the bodyThe heart uses rhythmic systole and diastolemovements to pump the blood around the body.Blood enters the atria through the veins and passesto the ventricles.Blood comes out of the ventricles , through thearteries
  • 8. The BloodBlood is a red liquid tissue made up of cellsthat float in a liquid called plasma.There are three types of blood cells:Red blood cells carry oxigenWhite blood cells remove bacteria andviruses from the bloodPlatelets are small fragments of cells thatform blood clots
  • 9. The blood vesselsThe blood vessels are the tubes throughwhich blood circulates.1) The arteries carry blood from the heart to the rest of the body1) The veins carry blood from all over the body back to the heart1) The capillaries are very thin vessels that reach all the cells ot the body.
  • 10. Human circulationHuman circulation is closed. Inmammals , the heart septum separatesthe two halves of the heart.Human circulation is double-Pulmonary circulation-Systemic circulation
  • 11. DONATING BLOOD CAN SAVE LIVES

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