Circulatory system: Scaling up: Biology: GCSE (9:1)

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22 Terms

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Heart

A hollow and muscular organ that pumps blood throughout the body, made up of involuntary muscle tissue called cardiac muscle

<p>A hollow and muscular organ that pumps blood throughout the body, made up of involuntary muscle tissue called cardiac muscle</p>
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Lungs

The main organs of the respiratory system, responsible for gas exchange where oxygen is exchange with carbon dioxide in the blood

<p>The main organs of the respiratory system, responsible for gas exchange where oxygen is exchange with carbon dioxide in the blood</p>
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Left ventricle

Pumps oxygenated blood to the body through the aorta

<p>Pumps oxygenated blood to the body through the aorta</p>
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Right ventricle

Pumps deoxygenated blood to the lungs through the pulmonary artery

<p>Pumps deoxygenated blood to the lungs through the pulmonary artery</p>
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Atria

Upper chambers of the heart that receive blood, the right atrium receives blood from the vena cava and the left atrium receives blood from the pulmonary vein

<p>Upper chambers of the heart that receive blood, the right atrium receives blood from the vena cava and the left atrium receives blood from the pulmonary vein</p>
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Aorta

The largest artery in the body, carries oxygenated blood to the body from the left ventricle

<p>The largest artery in the body, carries oxygenated blood to the body from the left ventricle</p>
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Vena cava

The largest vein in the body, carries deoxygenated blood from the body back to the heart, specifically to the right atrium

<p>The largest vein in the body, carries deoxygenated blood from the body back to the heart, specifically to the right atrium</p>
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Pulmonary artery

Carries deoxygenated blood from the heart to the lungs

<p>Carries deoxygenated blood from the heart to the lungs</p>
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Pulmonary vein

Carries oxygenated blood from the lungs to the heart

<p>Carries oxygenated blood from the lungs to the heart</p>
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Coronary arteries

Blood vessels that supply the muscle of the heart

<p>Blood vessels that supply the muscle of the heart</p>
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Trachea

Allows air to pass to and from lungs

<p>Allows air to pass to and from lungs</p>
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Bronchi

Two short branches at the lower end of the trachea that carry air into the lungs

<p>Two short branches at the lower end of the trachea that carry air into the lungs</p>
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Alveoli

Tiny sacs of lung tissue where gaseous exchange takes place with the blood

<p>Tiny sacs of lung tissue where gaseous exchange takes place with the blood</p>
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Capillary network

An interconnecting network of capillaries surrounding the alveoli

<p>An interconnecting network of capillaries surrounding the alveoli</p>
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Arteries

Blood vessels they carry blood away from the heart

<p>Blood vessels they carry blood away from the heart</p>
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Veins

Blood vessels that carry blood back to the heart

<p>Blood vessels that carry blood back to the heart</p>
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Capillaries

Smallest and thinnest blood vessels where the exchange of molecules takes place

<p>Smallest and thinnest blood vessels where the exchange of molecules takes place</p>
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Double circulatory system

The human circulatory system is a double system that has a circuit linking the heart and lungs and a circuit that links the heart to the rest of the body

<p>The human circulatory system is a double system that has a circuit linking the heart and lungs and a circuit that links the heart to the rest of the body</p>
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Tricuspid valve

The valve between the right atrium and the right ventricle, its role is to make sure blood flows the correct way through the atrium into the ventricle

<p>The valve between the right atrium and the right ventricle, its role is to make sure blood flows the correct way through the atrium into the ventricle</p>
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Pulmonary valve

The semilunar valve positioned between the right ventricle and the pulmonary artery, it enables a regular flow of blood from the heart to the pulmonary artery and lungs

<p>The semilunar valve positioned between the right ventricle and the pulmonary artery, it enables a regular flow of blood from the heart to the pulmonary artery and lungs</p>
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Mitral or bicuspid valve

The bicuspid valve between the left atrium and the left ventricle, its role is to make sure blood flows the correct way through the atrium into the ventricle

<p>The bicuspid valve between the left atrium and the left ventricle, its role is to make sure blood flows the correct way through the atrium into the ventricle</p>
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Aortic valve

The semilunar valve separating the aorta from the left ventricle, helps to keep blood flowing in the correct direction so that oxygenated blood can reach the rest of the body via the aorta

<p>The semilunar valve separating the aorta from the left ventricle, helps to keep blood flowing in the correct direction so that oxygenated blood can reach the rest of the body via the aorta</p>