Which type of blood vessel carries low pressure back into the heart?
Veins
Which type of blood vessels are where the exchange of substances like oxygen & carbon dioxide occur between the blood & cells (and therefore they have a wall that's only 1 cell thick)
Capillaries
What is the heart (which pumps your blood around your body) made of?
Muscle - which allows it to contract & relax to push blood
What is the name of the largest artery in your body that takes oxygenated blood away from the heart to the body?
Aorta
What do we call the top two chambers of the heart where blood enters from the pulmonary vein and vena cava?
Atria (plural) Atrium (single)
What do we call the bottom two chambers of the heart where blood enters from the atria and then gets pushed into the Aorta and Pulmonary Artery?
Ventricles
What name do we call the two valves that separate the top and bottom chambers of the heart & stop blood flowing backwards
Atrio-ventricular valves
OR Tricuspid AND bicuspid valeves
What name do we give to the two valves that separate the ventricles from the arteries & stop blood flowing back into the heart?
Semilunar valves
What name do we give to the blood vessel that carries oxygenated blood to the heart muscle cells themselves? These can get narrowed and lead to a heart attack
Coronary arteries
What name do we give to the artery and vein that supply blood to and take blood away from the lungs?
Pulmonary
What name do we give to the artery & vein that supply the blood to an take blood away from the kidneys?
Renal
What is your heart rate measured in?
Beats per minute (bpm)
What is the name of the hormone that is released and makes the heart beat faster & harder if you are scared?
Adrenaline
Adrenaline causes your heart to beat faster & harder, carrying more oxygen and glucose to cells. What specific chemical reaction do the cells use this for & what is released?
Aerobic respiration
Energy is released (in the form of ATP)
