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Cardiovascular and Respiratory System

1st Semester Science Project
by

Mac Selby

on 4 January 2013

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Transcript of Cardiovascular and Respiratory System

Cardiovascular &
Respiratory Systems System #1 Cardiovascular System
(circulatory system) Main Organs:
Heart
Blood
Blood Vessels HEART Functions of the heart: The heart is a hollow, muscular organ. It is made up of mostly cardiac muscle tissue. The heart's job is to pump blood throughout your body. It's made up of 4 chambers: left ventricle, right ventricle, left atrium, and right atrium. Blood Functions/description of blood The blood transports oxygen away from the lungs and around the body, and takes CO from the body cells to the lungs. Blood is made up of red blood cells, white blood cells, platelets, and plasma. White blood cells help kill pathogens and microbes that stray into the body. Platelets and fibrin in the blood help to clot wounds. A red blood cell's main function is carrying oxygen in the blood to various cells in the body 2 Blood Vessels Functions/Description of blood vessels: Your body has three kinds of blood vessels-arteries, capillaries, and veins. Arteries are blood vessels that carry blood away from the heart. From the arteries, blood flows into tiny, narrow vessels called capillaries. In the capillaries, substances are exchanged between the blood and body cells. From capillaries, blood flows into veins, blood vessels that carry blood back to the heart. System #2 Respiratory
System System 2 organ list:
Nose
Pharynx
trachea
Bronchus
Lungs NOSE Functions/description of the nose The nose contains the nostrils, organs of smell, and forms the beginning of the respiratory tract.
Air enters the body through the nose and then moves into spaces called the nasal cavities. Pharynx Description/function of the pharynx The pharynx is the tube or cavity, with its surrounding membrane and muscles, that connects the mouth and nasal passages with the esophagus. Trachea Function/description of trachea: The trachea is a tube extending from the larynx to the bronchi, serving as the principal passage for conveying air to and from the lungs; the windpipe. Bronchi Description/function of bronchus: Any of the major air passages of the lungs that diverge from the windpipe. The left bronchus leads to the left lung, and the right bronchus leads into the right lung. At the end of the smallest tubes are structures that look like bunches of grapes. the "grapes" are alveoli, which are tiny sacs of lung tissue specialized for the movement of gases between air and blood. Lungs Functions/description of the lungs: The lungs are spongy, sac like respiratory organs occupying the chest cavity together with the heart and functioning to remove carbon dioxide from the blood and provide it with oxygen. They are the main organs of the respiratory system. Larynx Functions/description of the larynx: The larynx, or voice box, is located in the top part of the trachea, underneath the epiglottis. It is a hollow muscular organ forming an air passage to the lungs and holding the vocal cords. Homeostasis:
The process by which an organism's internal environment is kept stable in spite of changes in the external environment. How the cardiovascular system and the respiratory system work together to maintain homeostasis. The respiratory system feeds the cardiovascular system oxygen. The cardiovascular system then transports blood to every living cell in the body. It carries carbon dioxide to the respiratory system so that it can be expelled from the body. This balance of oxygen and carbon dioxide is necessary to cells in producing energy that is used to move muscles and maintain the temperature of the body. Elizabeth Shull Russell Elizabeth Shull Russell took an interest in hemoglobin-a substance which carries oxygen to all parts of the body. Some of Russell's work concerned the processes of changes in hemoglobin. Russell also studied blood cells of mice especially cells that provide immune response. She preformed her research at the Roscoe B. Jackson Memorial Laboratory in Bar Harbor, Maine. There, she raised a large population of mice that she used for her research. When the laboratory burned down, killing all of her mice, Russell was determined to continue her research and rebuild the population.
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