BTEC Unit 1 Assignment 2

6164 WordsMar 28, 201525 Pages
BTEC Unit 1 Assignment 2 Cardiovascular System and Respi ratory System Ho Wai Chin (Jasmine) The Cardiovascular system The cardiovascular system is also known as the circulatory s ystem. It is made up of the heart, blood vessels and blood ce lls. is a network of blood vessels supplying the body with o xygen and nutrients, while removing carbon dioxide and wa ste. Our skin, bones, muscles, lungs, digestive tract, and nervous , endocrine, lymphatic, urinary, and reproductive systems us e the cardiovascular system as a transportation route for dist ribution of nutrients, oxygen, waste products, hormones, dr ugs, etc. (Adams et al, 2010)(Boundless, 2014) Heart The heart is situated in the left-hand side of the chest below the sternum. The…show more content…
The superior vena cava and inferior vena cava are veins t hat receive deoxygenated blood from the body to empty the m into the right atrium of the heart. The superior vena cava receives blood from the upper body while the inferior vena cava receives blood from the lower body. (Adams et al., pg. 22) Pulmonary Artery and Vein The pulmonary artery carries deoxygenated blood from th e right ventricle of the heart to the lungs. It is the only artery in the body that carries deoxygenated blood. The pulmonary vein carries oxygenated blood from the lun gs to the left atrium of the heart. It is the only vein in the bo dy that carries oxygenated blood. (Adams et al., pg. 22) Blood Vessels There are around 96,000km of arteries, arterioles, capillaries , venules and veins in the body that maintains blood circulati on in the body. These blood vessels have different structures due to their functions and the pressure of blood within them. Blood flowing through the arteries appear bright red due to i ts oxygenation. The blood drops off oxygen and takes up car bon dioxide at the capillaries. When it has reached the veins it is much bluer due to its low concentration of oxygen. (Adams et al., pg. 22) Vein Arteries Venuoles Towards the heart Arterioles Capillaries From the heart Image: http:// www.bbc.co.uk/schools/gcsebitesize/pe/images/capillaries.gif Arteries Arteries carry blood from the heart and they carry

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