Heart And Respitory KS3 Flashcards
What is the main function of the heart?
To pump blood throughout the body.
True or False: The heart has four chambers.
True.
Fill in the blank: The two upper chambers of the heart are called _____ and _____ .
atria and ventricles.
What are the names of the two lower chambers of the heart?
Ventricles.
What type of blood does the right side of the heart receive?
Deoxygenated blood.
Where does the left side of the heart pump oxygenated blood?
To the rest of the body.
What is the largest artery in the body?
Aorta.
True or False: Veins carry oxygenated blood to the heart.
False.
What is the role of red blood cells?
To carry oxygen to the body’s tissues.
What is respiration?
The process of taking in oxygen and expelling carbon dioxide.
What organ is primarily responsible for gas exchange?
Lungs.
Fill in the blank: Air enters the lungs through the _____ .
Trachea.
What are the tiny air sacs in the lungs called?
Alveoli.
True or False: The diaphragm helps in the process of breathing.
True.
What is the purpose of the pulmonary arteries?
To carry deoxygenated blood from the heart to the lungs.
What do capillaries do?
Connect arteries and veins and facilitate the exchange of oxygen and carbon dioxide.
What is the function of the valves in the heart?
To prevent the backflow of blood.
Fill in the blank: The process of the heart beating is called _____ .
Cardiac cycle.
What is the role of platelets in the blood?
To help with blood clotting.
How many lungs do humans have?
Two.
What is the name of the protective membrane surrounding the lungs?
Pleura.
True or False: The left lung is smaller than the right lung.
True.
What is the primary muscle involved in breathing?
Diaphragm.
What is the function of the trachea?
To carry air to and from the lungs.
