Heart Basics
What is the main component of the circulatory system?
Heart
What blood cell carries oxygen?
Red blood cell
What is the name of the vessel which carries blood away from the heart?
Artery
What organ adds oxygen to the body?
Lungs
What happens to your breathing during exercise?
It increases
How many chambers does the heart have?
4
Which blood cells fights infection?
White blood cell
What is the name of the smallest blood vessels found in the body?
Capillaries
What gas does blood carry to the lungs?
Carbon dioxide
What is one thing that can improve heart health?
Exercise / healthy diet / no smoking, drugs, alcohol
What are the upper chambers of the heart called?
Atria
What is the name of the shape of a red blood cell?
Biconcave
Most arteries carry what type of blood (blood that is high in)?
Oxygenated / oxygen
What system does the circulatory system work most closely with?
Respiratory system
What tool does a doctor use to listen to your heart?
Stethoscope
What muscle type is the heart made of?
Cardiac muscle
What is the yellow, liquid part of blood?
Plasma
Valves
What causes blood to move around the body?
The heart pumping/contracting/beating
What tool does a doctor use to measure your blood pressure?
Blood pressure cuff / Sphygmomanometer
What side of the heart pumps blood to the lungs?
Right side
What is the name of the protein in RBCs which carries oxygen?
Haemoglobin
Aorta / Vena Cava / Pulmonary artery/vein
Where in the lungs does gas exchange specifically occur?
Alveoli
Why does your heart rate increase during exercise?
Muscles need more oxygen/nutrients and produce more waste. This must be removed so the heart pumps blood faster.