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Digestive and Cardiovascular System Comparing and Contrasting
Transcript of Digestive and Cardiovascular System Comparing and Contrasting
The cardiovascular system protects the body through its white blood cells.
White blood cells clean up cellular debris and fight pathogens that have entered the body.
Platelets and red blood cells form scabs to seal wounds and prevent pathogens from entering the body and liquids from leaking out.
Blood also carries antibodies that provide specific immunity to pathogens that the body has previously been exposed to or has been vaccinated against. Regulation/Maintaining Homeostasis:
The cardiovascular system is very important to maintaining homeostatic control of several internal conditions.
-Blood vessels help maintain a stable body temperature by controlling the blood flow to the surface of the skin.
-Blood vessels near the skin’s surface open during times of overheating to allow hot blood to dump its heat into the body’s surroundings.
-In the case of hypothermia, these blood vessels constrict to keep blood flowing only to vital organs in the body’s core.
-Blood also helps balance the body’s pH levels due to the presence of bicarbonate ions, which act as a buffer solution.
-The albumins in blood plasma help to balance the osmotic concentration of the body’s cells by maintaining an isotonic environment. The digestive system is made up of these organs:
large intestine—also called the colon
anus Digestion is the process by which food and drink are broken down into their smallest parts so the body can use them to build and nourish cells and to provide energy. Digestion involves :
1. mixing food with digestive juices
2.moving it through the digestive tract
3. breaking down large molecules of food into smaller molecules
Digestion begins in the mouth, when you chew and swallow, and is completed in the small intestine. 1. Most digested molecules of food are absorbed through the small intestine.
2. In the mucosa of the small intestine, there are many villi that are covered in micro villi, which allow nutrients to be absorbed in to the bloodstream.
3. The bloodstream transports these nutrients to other parts of the body for storage or further chemical change. This system provides the body and other major systems and organs with ... Vitamins
water and salt