Why is there an intricate canal system within bones?

Question

s tWhy is there an intricate canal system within bones?

here an intricate canal system within bones?

ere an intricate canal system within bones?

Answer 1

The two main canals within bone are the Haversian and Volkmann canals. The Haversian canals allow blood vessels to traverse through the bone in the same direction as the long plane of the. In other words, these canals allows for a blood vessels to begin at one end of the long bone and travel through the bone to the other end. The Volkmann canals connect the numerous Haversian canals in the opposite plane. That is, these canals allow for the vessels running through the Haversian canals to be interconnected to one another. The complex canal system ensures blood and nutrients will be delivered to the bone in its entirety, and that the products from the bone will be transported accordingly.

Answer 2

Hi Jessica!

To answer your question about why there are intricate canals within the bones is because you have to remember that bones are not just build-ups of calcium: they are also themselves living tissues and as a result, they have cells called osteocytes that need to be supplied with glucose, water, oxygen. They also need to be able to expel waste such as CO₂ which is why they need blood vessels to enter these canals to reach osteocytes located deep to the tough compact bone exterior bones usually have.

Bones also need to be able to send signals to the brain, most especially in cases where if a bone breaks, it needs to be able to send signals to their neuron, thus bones will also have neurons within these canals too.

These canals allow nerves and blood vessels to access osteocytes that need their nutrition as there is no other way to penetrate the tough compact exterior bone layer, which is why they exist.

Answer 3

Hi Jessica,

Intricate canal systems within bones evolved as adaptations for facilitating blood transport from bone marrow to blood vessels (arteries and veins), while also allowing space for those vessels, nerves, and lymphatic vessels to penetrate the bones. Secondly, these canals allow wastes and osteocytes to be transported more efficiently throughout bones (especially long bones such as humeri and femurs). Lastly, these canals are also part of a structural, biomechanical adaptation of bones, which optimizes bone strength vs. weight reduction.

I hope that helps, and that you have a great weekend!

-Nicholas