1. Bio 20: Arteries
By: Travis Vande Munt

2. Diagram of Arteries

3. Artery Facts
The arteries carry oxygenated blood out of the heart and throughout the rest of our bodies
They carry nutrients and oxygen to muscle cells as well as all other cells within the body
There is one artery that does not carry oxygenated blood: pulmonary artery carries deoxygenated blood from the heart to the lungs so that the blood can become oxygenated
The largest artery is the aorta
The arteries also contain arterioles as well as capilliaries

4. Artery Structure
 Each artery is a muscular tube lined by smooth tissue and has three layers:
The intima, the inner layer lined by a smooth tissue called endothelium
The media, a layer of muscle that lets arteries handle the high pressures from the heart
The adventitia, connective tissue anchoring arteries to nearby tissues

5. Circulatory System The arteries are part of the circulatory system
The circulatory system contains arteries, arterioles, capillaries, veins, veinules, heart, and blood.

6. Autonomic Nervous System (ANS)
The (ANS) is the part of the nervous system that controls the motor nerves that regulate equilibrium, and that is not under conscious control
Vasoconstriction- the narrowing of blood vessels allowing less blood to the tissues
Vasodilation- the widening of blood vessels allowing more blood to the tissues
This is the pulse you feel when holding your hand up against the carotid artery

7. How they work?
Arteries contain elastic like material helping blood pulsate and move throughout the body
They carry oxygenated red blood cells (RBC), white blood cells, plasma, and nutrients throughout the body
Once these oxygenated RBC reach the capillaries they release oxygen and nutrients through osmotic pressure which are then distributed to the cells. The blood then enters the veins and returns to the heart

8. Atherosclerosis
This is a degeneration of blood vessels caused by the accumulation of fat deposits in the inner wall of the artery
This causes blood clots which can cause high blood pressure and possibly damage the artery
This can cause heart attacks and strokes because the brain or heart cannot receive enough oxygen because the artery is clogged meaning little to no blood is passing through causing these organs to slowly die

9. Aneurysm
This is a bulge in a weakened wall of a blood vessel, usually an artery
The most common site of this is in the aorta of the heart, abdominal aorta, and arteries towards the brain
Aneurysms are often due to atherosclerosis
This can cause arteries to rupture potentially leading to death from blood loss

10. Coronary by-pass: Cure for Atherosclerosis
This is an operation which can get rid of part of an artery that has been effected by atherosclerosis
A grafted artery is usually taken from the leg and used to bypass the part of the artery affected

11. Sources: www.webmd.com/heart/picture-of-the-arteries
Google images
Biology 20 textbook

12. THE END