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Unit 4.2

In: Social Issues

Submitted By bb123
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Unit 5- Anatomy and physiology

Unit 5.4 P4 M1 D1

P4- Explain the Physiology of Two Named Body Systems in Relation to Energy Metabolism in the Body
M1-Discuss the Roles of Energy in the Body

In this assignment I will be explaining the physiology of the cardiovascular system and the respiratory system. Whilst explaining the two body systems I will be explaining energy production, process of cellular respiration, the role of enzymes within these body systems, the way that these systems absorb food and the products of digestion.

The Cardiovascular System
The heart pumps the blood around the body through the blood vessels which is made of mostly veins and capillaries. The blood carries the dissolved oxygen around the bodily cells, whilst carrying the dissolved oxygen the blood removes the waste and the other products from respiration. The body’s blood pressure has to be maintained. The blood distributes heat around the body along with hormones, nutrients, salts, enzymes and urea.
The cardiovascular system transports simple molecules and materials to the liver and the body cells via the blood stream. This happens through the hearts pumping actions.

The Respiratory System
The respiratory system always refreshes oxygen within the lungs, it gets rid of the waste products like carbon dioxide and water, and this is done throughout actions like breathing.
The dissolved oxygen passes through the alveolar walls into the bloodstream; this is then transported into the cells.
Body cells are persistently being made into raw materials such as glucose and other nutrients like dissolved oxygen. This happens so the process of catabolism can take place, this is when chemicals reactions breaking down the molecules to release energy.
Glucose oxidisation also takes place and this is when energy can be released to do work within the cells, this takes place within

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