There are distinct capillaries for blood and lymph. Both of these have few contrasting features, which are explained in the lines below:
- Colorless, difficult to observe.
- Blind (closed at the tip).
- Wider than blood capillaries.
- Wall consist of thin endothelium and poorly developed basement membrane.
- Contain colorless lymph.
- Have relatively low pressure.
- Absorb tissue fluid from inter¬cellular spaces.
- Reddish, easy to observe.
- Joined to arterioles at one end and to venules at another end.
- Narrower than lymph capillaries
- Wall consist of normal endothelium and basement membrane.
- Contain red blood.
- Have relatively high pressure.
- Add tissue fluid to intercellular spaces.