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phisical prep 1

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Introduction

For this assignment I had to demonstrate my knowledge of how the body system works and how the body system can become more effective with training, as well as the effects exercise has upon the body. I did this by describe the muscular, skeletal, cardiovascular and respiratory system. I detailed both structure and function of systems and used diagrams to assist the description. Also I listed the short and long term benefits of exercise on the body, finally I explained the principles of training and give examples of each principal. P1 The Muscular system The Muscular system is made up of hundreds of individual muscles attached to the skeleton. The strongest muscle is the Gluteus Maximus, the longest muscle is the Sartorius which runs from the hip to the knee. Muscles are attached to your bones by tendons. The muscles don't work alone they work in groups, you have muscles that extend and muscles that flex. An extensor is a muscle that's allows a joint to straighten and a flexor is a muscle that causes a joint to bend. You have two types of muscles, voluntary and involuntary. Voluntary muscles work only when you want them to work, Like your arms, you move them using your brain. Involuntary muscles work all by their self, like the heart. Muscle exerts force by converting energy into tension and contraction. Muscles move and make us capable of a variety of actions by simply contracting and becoming shorter. ...read more.

Middle

The respiratory system does this through breathing. When we breathe, we inhale oxygen and exhale carbon dioxide. This exchange of gases is the respiratory system's means of getting oxygen to the blood. Respiration is achieved through the mouth, nose, trachea, lungs, and diaphragm. Oxygen enters the respiratory system through the mouth and the nose. The oxygen then passes through the larynx and the trachea which is a tube that enters the chest. In the chest, the trachea splits into two smaller tubes called the bronchi. Each bronchus then divides again forming the bronchial tubes. The bronchial tubes lead directly into the lungs where they divide into many smaller tubes which connect to tiny sacs called alveoli. The carbon dioxide follows the same path out of the lungs when you exhale. The diaphragm's job is to help pump the carbon dioxide out of the lungs and pull the oxygen into the lungs. The diaphragm is a sheet of muscles that lies across the bottom of the chest cavity. As the diaphragm contracts and relaxes, breathing takes place. When the diaphragm contracts, oxygen is pulled into the lungs. When the diaphragm relaxes, carbon dioxide is pumped out of the lungs M1 Cardio vascular system Long term -The heart becomes stronger and larger as a result of exercise so it can pump more blood through the body with every beat and sustain its maximum level with less strain. -The resting heart rate of those who exercise is slower because less effort is needed to pump blood. ...read more.

Conclusion

It would be ridiculous to expect a person who has not been doing any exercise to run 10 miles on their first day. However, it is generally accepted that if a person starts out running a mile each day, they can progress by increasing the distance or decreasing their time. Progression seems to happen naturally as your exercises feel easier over time - you will probably seek out more of a challenge by increasing the intensity, duration and frequency of the exercises. If you don't do this, you will probably get bored very quickly. Specificity A runner does not train the same way as a shot putter. If you are training for a particular position in a particular sport, you need to consider what muscles and types of fitness are emphasised in your activity. If you aren't training for a particular sport, then you need to consider your height, weight, gender, body shape, and goals before you choose a training program. If you are training to lose weight, you should emphasise more cardiovascular activities with some moderate strength training. If you want to "pump up" your muscles, then you will probably spend most of your session lifting weights. Reversibility "If you don't use it, you lose it". The main tenet of reversibility. Any athlete training after time off caused by injury knows that he cannot pick up exactly where he left off. Unfortunately, the body seems to lose muscle much more quickly than it is gained. 1. College moodle 2. First diploma in public services work 3. www.innerbody.com/image/musfov.html 4. www.mnsu.edu/emuseum/biology/humananatomy/skeletal/skeletalsystem.html 5. www.en.wikipedia.org/wiki/Circulatory_system 6. www.fi.edu/learn/heart/systems/respiration.html ?? ?? ?? ?? Kimberley Mortimer Page 1 ...read more.

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