Introduction to Histology 1

Please answer each question in detail and picture is required and references.

I need high quality of work/ because I never get full mark in the assignments and remember this is a Histology paper so please make sure you include histology information like description of the cell, nucleus, staining etc. That part is called HISTO 

It has to be 4 pages long   

1: Describe the histological parts of the blood vessels? What are the histological differences between arteries and veins?

2: Discuss the role of heart in the circulatory system? Describe the different histological parts comparing them with those of the blood vessels?