The tricuspid valve is situated between the right atrium and right ventricle.
The pulmonary valve is between the right ventricle and the pulmonary artery. The mitral valve is between the left atrium and left ventricle.
Answer:
Heart disease and strokes are a very serious issue and the main causes of death 20 years ago, and even today. This means that something such as genetics or even diet is effecting health and heart problems leading to death.
Explanation:
the original line is stating that heart disease and strokes were the two leading killers 20 years ago, and they still are today so this means that heart issues are a big problem and main cause of death.
Bone marrow contains blood I think, so it would be considered a donor procedure since you're donating blood.
