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GCSE PE > structure And Function Of The Cardio-repiratory System > Flashcards

structure And Function Of The Cardio-repiratory System Flashcards

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1
Q

What is the primary function of the respiratory system?

A

To facilitate the exchange of oxygen and carbon dioxide.

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2
Q

True or False: The diaphragm contracts during inhalation.

A

True

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3
Q

Fill in the blank: The __________ are the small air sacs in the lungs where gas exchange occurs.

A

alveoli

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4
Q

What is the role of red blood cells?

A

To transport oxygen from the lungs to the body and carbon dioxide from the body to the lungs.

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5
Q

Multiple Choice: Which blood vessel carries oxygenated blood away from the heart?

A

Aorta

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6
Q

What is the function of valves in the heart?

A

To prevent the backflow of blood.

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7
Q

True or False: The right atrium receives oxygenated blood from the body.

A

False

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8
Q

What are the two main types of blood vessels?

A

Arteries and veins.

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9
Q

Fill in the blank: The __________ is the chamber of the heart that pumps blood to the lungs.

A

right ventricle

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10
Q

What is the average resting heart rate for a healthy adult?

A

60 to 100 beats per minute.

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11
Q

Multiple Choice: Which part of the heart is responsible for pumping oxygenated blood to the body?

A

Left ventricle

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12
Q

True or False: Veins have thicker walls than arteries.

A

False

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13
Q

What is the term for the phase of the heartbeat when the heart muscle relaxes?

A

Diastole

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14
Q

Fill in the blank: Blood that is rich in oxygen is called __________ blood.

A

oxygenated

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15
Q

What is the primary gas exchanged in the lungs during respiration?

A

Oxygen

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16
Q

True or False: The pulmonary artery carries deoxygenated blood to the lungs.

A

True

17
Q

What is the main purpose of capillaries?

A

To allow for the exchange of substances between blood and tissues.

18
Q

Fill in the blank: The __________ is the largest artery in the body.

A

aorta

19
Q

What is the name of the process by which oxygen is transported from the lungs to the body’s tissues?

A

Oxygen transport

20
Q

Multiple Choice: What is the function of the septum in the heart?

A

To separate the left and right sides of the heart.

21
Q

True or False: The heart has four chambers.

A

True

22
Q

What is the main function of the circulatory system?

A

To transport nutrients, gases, hormones, and waste products throughout the body.

23
Q

Fill in the blank: The __________ returns blood from the upper body to the heart.

A

superior vena cava

24
Q

What is the term for the volume of blood pumped by the heart in one minute?

A

Cardiac output

25
Q

Multiple Choice: Which type of blood vessel carries blood back to the heart?

A

Veins

26
Q

True or False: Oxygen diffuses from the blood into the alveoli during gas exchange.

A

False

27
Q

What happens to the diaphragm during exhalation?

A

It relaxes and moves upward.

28
Q

What is the primary function of the respiratory system?

A

To facilitate the exchange of gases, primarily oxygen and carbon dioxide.

29
Q

True or False: The pathway of air begins at the nose or mouth.

A

True

30
Q

Fill in the blank: The __________ are tiny air sacs in the lungs where gas exchange occurs.

A

alveoli

31
Q

What is the role of the diaphragm in breathing?

A

The diaphragm contracts to create a vacuum that draws air into the lungs.

32
Q

Multiple Choice: Which gas is primarily inhaled during respiration? A) Carbon Dioxide B) Nitrogen C) Oxygen D) Argon

A

C) Oxygen

33
Q

What process describes the movement of oxygen from the alveoli into the blood?

A

Diffusion

34
Q

True or False: Carbon dioxide is transported back to the lungs primarily in red blood cells.

A

True

35
Q

Fill in the blank: The __________ is the tube that carries air to the lungs.

A

trachea

36
Q

What is the term for the total volume of air that can be inhaled and exhaled in one breath?

A

Tidal volume

GCSE PE (3 decks)

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