The Heart - Structure
Biology: AQA GCSE Higher, topic 2.3.5
Blood Flow in the Heart
Blood entering the heart through the right atrium is deoxygenated and comes from the body. Blood entering the heart through the left atrium is oxygenated and comes from the lungs.
Test yourself on The Heart - Structure
Why does the left atrium appear on the right-hand side of a heart diagram?
What would happen if the valves in the heart did not work properly?
Which statement correctly compares the blood entering the heart's two atria?
The heart is described as a muscular organ that pumps blood around the body. What would most likely happen if the heart's walls were not made of muscle?