Topic: Body Transport System Subtopic: Arteries, veins and capillaries
What are capillaries?
Answer: Arteries spread into tiny blood vessels known as capillaries. Capillaries are only one cell thick. Due to this reason, the red blood cells have to squeeze through them. For this reason, the red blood cells are biconcave and elastic.
Learn also:
- Why is transpiration important?
- Where are red blood cells made?
- What happens if excess lactic acid is produced?
- Which vessel carries blood to lungs?
- Where do gases enter and leave plant?
- How does large trees take up water?