Questions: 2. Based on Histology label the name of the blood vessels in the picture below ( Artery, Vein, or Capillary)

To accurately label the blood vessels in a histology image as an artery, vein, or capillary, we need to consider the distinct histological features of each type of blood vessel. Here are the key characteristics:

1. Arteries:

   • Thick walls with a prominent tunica media (middle layer) composed of smooth muscle and elastic fibers.
   • Smaller lumen (internal space) compared to veins.
   • Often appear more rounded in cross-section due to the thick muscular wall.

2. Veins:

   • Thinner walls compared to arteries, with a less prominent tunica media.
   • Larger lumen compared to arteries.
   • Often appear more irregular or collapsed in cross-section due to the thinner wall.

3. Capillaries:

   • Extremely thin walls, consisting of a single layer of endothelial cells.
   • Very small lumen, just large enough for red blood cells to pass through in single file.
   • Typically not visible in the same detail as arteries and veins in standard histological images due to their small size.

Without the actual image, I can only provide these guidelines. If you have an image, you can use these characteristics to identify and label the blood vessels accordingly.