6 Questions
What is the function of the semi-lunar valve in the heart?
Prevents back flow of blood from the pulmonary into the right ventricle
What is the main function of the left atrium in the heart?
Pushes blood through the mitral valve into the left ventricle for pumping to the body
Which blood vessels carry oxygen poor blood back to the heart?
Veins
How do arteries differ structurally from veins?
Arteries have heavier and thicker walls and smaller lumen
What can happen if plaque builds up inside the arteries according to the text?
It restricts blood flow and can lead to heart attack or stroke
What is a key characteristic of veins compared to arteries?
Low blood pressure due to returning blood
Test your knowledge on the anatomy and functions of the left atrium, including its thin walls, four pulmonary veins, and the role of the mitral valve. Explore how the left atrium contracts to push blood into the left ventricle and its importance in maintaining blood flow.
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