4.2.2.2 the heart and blood vessels Flashcards

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1
Q

What is the heart

A

It is an organ that pumps blood around the body in a double circulatory system

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2
Q

What are the three different type of blood vessel within the body

A

Arteries, capillaries, veins

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3
Q

What do capillaries transport

A

Blood, nutrients, and oxygen

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4
Q

What do veins transport

A

Deoxygenated blood from all body parts to the heart.

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5
Q

What does the right ventricle do

A

Pumps blood to the lungs

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6
Q

What does the left ventricle do

A

Pumps blood around the body

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7
Q

What is the vena cava

A

A vein that travels from the body parts to the heart, this carries deoxygenated blood

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8
Q

What is the aorta

A

Artery pumps blood from the heart around the body, carries oxygenated blood

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9
Q

What is the pulmonary vein

A

A vein that travels from the lungs to the heart. Carries oxygenated blood

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10
Q

What is the pulmonary artery

A

A artery that travels from the heart to the lungs. Carries deoxygenated blood

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11
Q

Explain gas exchange within the lungs

A

Bronchioles —-> alveolus
Oxygen and carbon dioxide are exchanged in alveoli at the end of bronchial tubes. Alveoli are surrounded by capillaries.

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12
Q

Do veins visit or go away

A

They visit the heart

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13
Q

Do arteries visit or go away

A

They transport nutrients and oxygen away from the heart

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14
Q

What do capillaries do?

A

Connect the veins and arteries

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14
Q

What is lumen

A

Central cavity of a tubular or other hollow structure in an organism / cell

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15
Q

What are the differences between arteries and veins?

A

Arteries :
Away from the heart,
Thick muscular walls
Small lumen
High blood pressure
Veins :
To the heart
Thin walls
Large lumen
Low blood pressure
Has valves

16
Q
A