the cardiovascular system

Question 1

reminder

Answer 1

label complex heart and structure of blood vessels

Question 2

structure of the cardiovascular system

Answer 2

• made up of the heart, blood vessels and blood
• the pumping action of the heart causes blood circulation around the body
• the heart is a muscle and therefore requires a blood supply
• blood is transported to the blood via the coronary arteries which cover the surface of the heart

Question 3

3 layers of the heart

Answer 3

epicardium = outer layer
myocardium = strong middle layer forming most of the hearts wall
endocardium = inner layer

Question 4

septum of the heart

Answer 4

• solid wall of muscle
• separates the right side from the left side, and the ventricles from the atriums (bottom from top)
• as it result it keeps oxygenated and deoxygenated blood separated

Question 5

the 4 hearts chambers

Answer 5

right atrium
right ventricle
left atrium
left ventricle