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NUTRITION ll (Systemic circulation (Oxygenated blood enters the left…
NUTRITION ll
Systemic circulation
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The left ventrice contracts and pumpds blood through the aorta,the bodys largest artery
In the small intestine,blood picks up nutrients through absorption
In the capillaries,blood releases oxygen and nutrients,and collects
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In the kidneys ,blood is filtered to release waste substances
Finally,blood returns to the right atrium of the heart through the vena caba
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The circulatory system
Blood:Blood is the only tissu in our body that is a liquid.The Blood have three cells:Red blood cells,white cells and platelets
Blood vessels:Blood vessels are hollow tubes distributed throughout our body.They are three types of blood vessels:Arteries,veins and capillaries
The heart:The heart is an organ made up of muscles.The heart is made of atria and ventricles.There are two parts of the heart
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Blood circulation is the constant movement of blood throgh the blood vessels and around the body.The beat of the heart involves two stages
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Respiration have 7 parts:Nostrils,pharynx,larynx,trachea,bronchi,bronchioles and alveoli
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Pulmonary circulation Pulmonary circulation is the movement of blood between the heart and the lungs