Worksheet: Blood Vessels
In this worksheet, we will practice describing the structure and function of the major blood vessels in the human circulatory system.
Which of the major blood vessels carries blood back into the heart?
Why do arteries have thick, muscular walls containing elastic fibers?
- ATo prevent oxygen from being lost from the blood
- BTo prevent the backflow of blood
- CTo help them carry blood at low pressure
- DTo allow the transport of substances to other cells
- ETo help them carry blood at high pressure
Which of the following correctly compares veins and arteries?
- ABoth arteries and veins have thick muscular walls to carry blood at high pressure.
- BBoth arteries and veins contain valves to prevent the backflow of blood.
- CVeins have a muscular wall to carry blood at high pressure, and arteries have valves to prevent the backflow of blood.
- DArteries have a muscular wall to carry blood at high pressure, and veins have valves to prevent the backflow of blood.
Why is it important for capillaries to have thin, permeable walls?
- ATo allow them to carry blood at a high pressure
- BTo increase the rate of blood flow
- CTo allow substances to diffuse into and out of cells
- DTo prevent the backflow of blood in the vessels
- ETo provide capillaries with the flexibility to move around cells
What happens to the blood when it is taken to the lungs?
- AIt becomes oxygenated.
- BIt becomes deoxygenated.
- CIt absorbs glucose.
- DIt releases glucose.
Why do veins often contain valves?
- ATo keep blood moving against the concentration gradient
- BTo keep blood moving at a high pressure
- CTo ensure that blood is able to clot properly
- DTo prevent the backflow of blood
- ETo prevent blood from becoming deoxygenated
Which of the major blood vessels carry blood from the heart to the lungs or the body?
What type of blood vessels surround and deliver blood to body cells, tissues, and alveoli?
Complete the table to correctly compare the structure of the three major blood vessels.
|Width of Wall||Thin||1||Single layer of cells|
|Size of Lumen||2||Small||Very small|
- A1: Thick, 2: Small, 3: No, 4: No
- B1: Thin, 2: Small, 3: Yes, 4: No
- C1: Thick, 2: Large, 3: Yes, 4: No
- D1: Thick, 2: Large, 3: No, 4: Yes
- E1: Thin, 2: Large, 3: Yes, 4: Yes
The diagram provided shows the structure of an artery. Which of the following best describes its structure?
- AArteries have thick walls, large lumens, and valves.
- BArteries have thick walls and small lumens and do not contain valves.
- CArteries have a small lumen and a wall only one-cell thick.
- DArteries have multiple valves inside a thick wall.
- EArteries have thin walls and large lumens and do not contain valves.
The diagram provided shows the structure of a vein. Which of the following best describes its structure?
- AVeins contain valves inside thick, muscular walls.
- BVeins have thin walls and a large lumen and contain valves.
- CVeins have thin walls and a small lumen and do not contain valves.
- DVeins have a wall that is one cell thick and contain valves.
- EVeins have thick walls and a comparatively small lumen.