Chapter 28-29- The Heart and Blood Vessels

Home

Get App

Create

What are the 3 types of blood vessels?
- 1. Arteries
- 2. Veins
- 3. Capillaries
What does T.S stand for?

Traverse section
What are 5 points about the artery’s structure?
- Small lumen (where blood flows through)
- Wall is a thick layer of muscle and elastic fibres
- No valves because blood is under pressure
- Inner lining is 1 cell thick
- Has an outer fibrous coat
What is the function of an artery?

Transports blood away from heart and carries oxygenated blood (exception: pulmonary artery).
Which artery is the exception for the artery’s function?

Pulmonary artery.
What is the description of an artery’s blood flow?

An artery has a rapid blood flow as it is under high pressure and flows in pulses.
What are 5 points about the veins structure?
- Large lumen
- Wall is thin layer of muscle and elastic fibre
- Has valves to prevent back flow
- Has outer fibrous coat
- It’s inner lining is 1 cell thick
What is the function of a vein?

Transports blood to heart and carries deoxygenated blood (exception: pulmonary vein).
What is the description of a veins blood flow?
- A veins blood flow is slow and under low pressure.
- Flows at a steady rate.
- It’s flow is assisted by the squeezing action of near by arteries.
What are 3 points about the capillaries structure?
- Relatively large lumen- although microscopic
- It’s wall is 1 cell thick allowing exchange of materials between blood and cells
- No valves
What is the function of a capillary?

To link arteries to veins and carry oxygenated and deoxygenated blood.
What is the description of a capillary’s blood flow?
- A capillary’s blood flow is slow as pressure falls allowing time for exchange of substances.
- There is also no pulse.
Describe the exchange of materials between capillaries and body cells :
- Blood leaves the body organs in capillaries.
- Blood travels via venules (small blood vessels) to the veins.
- The veins bring blood back to heart.
What do you call very small arteries?

Arterioles
What do you call very small veins?

Venules
What connects capillaries to veins?

Venules
What connects capillaries to arteries?

Arterioles
What’s the relationship between blood vessels? (5 step link)
- 1. Artery ~
- 2. Arterioles ~
- 3. Capillary ~
- 4. Venule ~
- 5. Vein
Which transports blood to the heart, veins or arteries?

Arteries supply blood to the heart.

Author

jacquelineglynn

356722

Card Set

Chapter 28-29- The Heart and Blood Vessels

Description

Questions

Updated

2021-04-23T06:38:39Z

Show Answers