Soc 16: The Structure of blood vessels Flashcards
(11 cards)
Ateries
• Arteries take blood away from the heart
- Arteries have thick walls and are more elastic than veins as they carry blood which is at a higher pressure than veins as they carry oxygenated blood.
- The channel the blood flows through, called the lumen, can widen to allow more blood through when you so that when you exercise, it can reach the working muscles.
- The pulmonary artery is different from other arteries as it carries deoxygenated blood from the heart to the lungs.
Veins
Veins carry blood into the heart.
Veins have much thinner walls, are less elastic and carry blood at a lower pressure.
Veins contains many valves which helps deoxygenated blood flow to the heart.
The pulmonary vein is different to other veins as it carries oxygenated blood from the lungs back to the heart.
How does the vena cava work?
Carries oxygen depleted blood back to your heart from the lower part of your body.
How does the Right Atrium work?
Receives oxygen poor blood from the body and pumps it to the right ventricle.
How does the tricuspid valve work?
Controls the flow of blood from your heart’s top chamber (right atrium) to your heart’s bottom chamber (right ventricle)
How does the Right Ventricle work?
Pumps blood low in oxygen to the lungs
How does the Pulmonary Valve work?
Enabling the deoxygenated blood to be pumped from the right ventricle to the pulmonary circulation
How does the Pulmonary Artery work?
Blood Vessels that carry oxygen-poor blood from the right side of your heart to the lungs.
How does the Pulmonary Vein work?
Carries oxygen rich blood from your lungs and carries it to your heart.
How does the Left Atrium work?
Receives blood full of oxygen from the lungs and then empties the blood into the left ventricle.
How does the Bicuspid Valve work?
