P4: The Cardiovascular system The cardiovascular system refers to the heart, blood vessels and the systematic circulation (blood). Blood contains oxygen and other nutrients which your body needs to survive. The body takes these essential nutrients from the blood. At the same time, the body dumps waste products like carbon dioxide, back into the blood, so they can be removed. The main function of the cardiovascular system is therefore to maintain blood flow to all parts of the body, to allow it to survive.
How Does the Cardiovascular System Work? Cardiovascular System The cardiovascular system includes blood, blood vessels and the heart performing well-known roles necessary to life. As blood flows through the body, it carries oxygen, hormones and enzymes to the cells and transports carbon dioxide and other wastes for removal from the body. Blood also prevents fluid loss through clotting and fights infection. Cardiac Cycle * The heart is a muscle that pumps blood throughout the body.
Shivering is our bodies response to our temperature falling, muscles around vital organs start shake in minute movements- this creates energy which increases warmth. The control of blood glucose levels It’s important our body is able to control and regulate our blood glucose levels; this is done by our pancreas. The normal blood sugar level is around 4-8 mmol/l. It’s important our body tries and maintains this level so that there is a constant supply to cells so they can metabolise to ATP. If the
Maintain Body Temperature * The production of perspiration by sudoriferous (sweat) glands helps to lower body temperature back to normal. * Changes in the flow of blood to the skin also alter its insulating properties and help to adjust body temperature. 2. Protection * The skin covers the body and provides a physical barrier that protects tissues from physical abrasion, bacterial invasion, dehydration, and UV radiation. * Hair and nails also have protective function.
- This enables rapid uptake of water by osmosis. - These drinks enable people to become quickly rehydrated after exercise. Active Transport: - The process by which cells absorb substances against a concentration gradient. - The substances
The respiratory system does this through breathing, when an individual breath in they inhales oxygen whereas when they breathe out they exhale carbon dioxide. Cardiovascular system and the respiratory system The cardio vascular system which is made up of the heart and blood vessels, this system works together with the respiratory system which is made up of the lungs and airways. These two systems work together to transport oxygen to the muscles and all the organs in the body also they work together to remove any waste products including carbon dioxide. The respiratory system and the cardiovascular system work closely together to make sure all tissues receive sufficient oxygen. The air we breathe in that is held in the lungs is transferred through the blood and the heart is involved with blood circulation where oxygenated blood is pumped from the lungs to the rest of the body.
Possible side effects that creatine monohydrate has on the human body after consuming the liquid is stomach cramps, muscle cramps, weight gain, loss of appetite diarrhea and nausea. Creatine can also cause water to travel to other areas of the body into muscle tissue which can cause dehydration or cramps in the body. Drinking a larger amount of water would be helpful to prevent dehydration and body cramps. Consuming too much creatine is harmful towards the human body. It can damage the kidneys, liver and the heart.
The skins function is to act as a barrier; this protects the body from microbes and viruses entering the body. The skin also prevents fluid loss from the body and helps to regulate body temperature. The kidneys filter the toxins in the blood, regulate water levels within the body and also help excrete waste. The liver helps with the breakdown of toxic substances and also carbohydrates. The hypothalamus in the brain is what controls all the responses to the changes in the body’s internal environment.
Changing a diet can lower the risk of having Cardiovascular Disease. A diet with saturated fat increases the risk. High blood pressure is a major risk factor because if you have a diet high in sodium can lead to hypertension. The harmful use of alcohol has been shown to damage heart muscle and increase the risk of stroke and cardiac arrhythmia. Saturated fats and trans fats will raise your cholesterol levels, which can lead to a clog up in the arties.
The heart is used the hardest in this life stage as the arteries harden the heart needs to pump harder and faster to ensure that the individual is still alive, this however, is considered a big risk for the individual as the blood pressure may increase to such that the individual may have a heart attack. The coronary heart disease is caused by the fatty/unhealthy deposits causing a blockage in the arteries. If the coronary artery is partly blocked, the individual will become more breathless and also may face extreme chest pains, this suggests that the blood flow may have decreased ad so increases the risk of a heart attack. With increasing age the heart becomes more vulnerable to disease. Even in the absence of detectable disease, the heart undergoes deleterious changes with advancing age.