... . (Wilmore, Costill, and Kenney, 2008). If a person is being active then the cardiovascular system must speed up to meet the demands of the working tissues. The heart must beat faster to get the needed blood to each tissue. During exercise blood flow is focused on the tissues that are working. The digestive system organs do not get as much attention from the cardiovascular ... system because the blood is needed more at muscles. The heart receives electrical impulses through the SA node to contract and create a higher pressure then what ... is obscured. The QRS wave is the ECG deflection...

• Word Count: 1508
• Approx Pages: 6
• Has Bibliography
• Grade Level: High School

... allowing more oxygen to be released into the blood stream. The endocrine system is triggered by the nervous system when the need for longer reactions arises; fortunately the need for the longer reaction is daily, due to the digestive, cardio and respiratory systems. There is also a less common trigger for ... long term, they can be more harm then they are good. Epinephrine can have many harmful effects. One system that it can have extreme effects on is the digestive system. Its effects usually cause the increase of foods and energy being used. In return for this there is an ... of urine...

• Word Count: 1536
• Approx Pages: 6
• Grade Level: High School

... of your family are all minor hassles that are considered threats to the body. When you experience a known threat your hypothalamus sets off an alarm system in your body, which then allows the body to release a flow of hormones, adrenaline and cortisol into the body. Adrenaline then increases the ... the brain's use of glucose and raises the availability of substances that repair tissue. Cortisol also changes growth processes as well as your immune system responses. This alarm also exchanges information with parts of the brain that have effects on motivation, mood and fear. When our natur...

• Word Count: 1862
• Approx Pages: 7
• Has Bibliography
• Grade Level: High School

... pumping blood through the arteries puts pressure on the artery walls. Hypertension occurs when blood pressure stays elevated overtime. This increased pressure on the heart puts a strain on the circulatory system and can lead to serious problems. Some of these problems include stroke, heart disease, and kidney failure. According to the American Heart Association, cardiovascular disease is the number one killer ... carries harmful waste to the kidneys to be removed. Blood also transports hormones from the glands to various parts of the body, as well as vitamins and nutrients form the dige...

• Word Count: 2310
• Approx Pages: 9
• Has Bibliography
• Grade Level: High School