The heart beats continuously, pumping the equivalent of more than 14,000 litres of blood every day through five main types of blood vessels: arteries, arterioles, capillaries, venules and veins. Anatomy of Blood Vessels Review Sheet 32 261 Microscopic Structure of the Blood Vessels 1. The peripheral vascular system (PVS) includes all the blood vessels that exist outside the heart.
Their thin walls allow oxygen, nutrients, carbon dioxide, and other waste to pass to and from cells.
The heart is a muscular pump that pushes blood through blood vessels around the body. Use key choices to identify the blood vessel tunic described. Veins are vessels that return blood to the heart. Key: a. tunica intima b. tunica media c. tunica externa 1. innermost tunic 2. bulky middle tunic contains smooth muscle and elastin 3. its smooth surface decreases resistance to blood flow
The vessels that carry blood away from the heart are called arteries. These small blood vessels connect the arteries and the veins. Aside from capillaries, bl …
Learn more about the anatomy and types of blood vessels and the diseases that affect them. Blood vessels are key components of the systemic and pulmonary circulatory systems that distribute blood throughout the body. There are three major types of blood vessels: arteries that carry blood away from the heart, branching into smaller arterioles throughout the … Veins. The peripheral vascular system is classified as follows: The function and structure of each segment of the peripheral vascular system vary depending on the organ it supplies.
Blood vessel, a vessel in the human or animal body in which blood circulates. Eventually, the smallest arteries, vessels called arterioles, further branch into tiny capillaries, where nutrients and wastes are exchanged, and then combine with other vessels that exit capillaries to form venules, small blood vessels that carry blood to a vein, a larger blood vessel that returns blood …