1)Explain how the body stays alive.
In order for the body to stay alive, each of its cells must receive a continuous supply of food and oxygen. At the same time, carbon dioxide and other materials produced by the cells must be picked up for removal from the body. This process is continually maintained by the body's circulatory system.
2)What does the primary circulatory system consist of?
Heart and blood vessels.
3)How many miles of blood vessels does the average adult have in their body?
on average, about 60,000 miles!
4)What is the aorta? Discuss the parts it's devided into.
The body's largest blood vessel, the aorta, arches out of the heart and down toward the lower body. The aorta is divided into several parts: the ascending aorta, the arch of the aorta, and the thoracic and abdominal portions of the descending aorta.
5)What artery brings fresh blood to the upper arms and chest?
The Axillary Artery.
6)Explain how blood changes while travelling thru the capillarries.
The capillaries have thin walls, only one cell thick, across which oxygen and metabolic exchanges take place. As blood flows through the capillaries in the lungs, it changes from venous blood to arterial blood by unloading carbon dioxide and picking up oxygen. Its color changes in the process from a deep crimson to a bright scarlet. As blood flows through tissue capillaries, it changes back from oxygen-rich blood to oxygen-poor blood. The oxygen leaves the blood to enter cells, and the carbon dioxide leaves the cells and enters the blood.
7)Name the 3 branches of the celiac artery.
Gastric, Hepatic, Spelndic.
8)How big is each ciliac artery?
About an inch in length.
9)What do the arteries at the head and neck do?
They supply blood to the head and neck...(Didn't see that one comin'!)