Multiple Choice
What prevents the backflow of blood in veins?
153
views
19. The Blood Vessels
Introduction to Blood Vessels
Struggling with Anatomy & Physiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which blood vessels empty into the left atrium?
A
Superior vena cava
B
Pulmonary veins
C
Pulmonary arteries
D
Inferior vena cava
Verified step by step guidance1
Understand the function of the left atrium: The left atrium is one of the four chambers of the heart, responsible for receiving oxygenated blood from the lungs.
Identify the blood vessels associated with the lungs: The pulmonary veins are the vessels that carry oxygenated blood from the lungs to the heart.
Differentiate between veins and arteries: Pulmonary veins carry blood towards the heart, while pulmonary arteries carry blood away from the heart to the lungs.
Recognize the role of the superior and inferior vena cava: These vessels carry deoxygenated blood from the body to the right atrium, not the left atrium.
Conclude that the pulmonary veins are the correct vessels that empty into the left atrium, as they transport oxygenated blood from the lungs.
Related Videos
Related Practice
Introduction to Blood Vessels practice set
Problem sets built by lead tutorsExpert video explanations