The cardiovascular system plays a vital role in circulating blood throughout the body to maintain human life. The system consists of a heart and blood vessels that help delivers blood containing oxygen and nutrients to the body organs and tissues for function. The heart is a muscular body organ located on the left side of a human chest. The heart has four chambers are known as the right atrium‚ right ventricle‚ left atrium and the left ventricle. Blood travels through the four chambers by the heart
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Cardiovascular The cardiovascular system is consists of the heart and network of arteries‚ veins‚ and capillaries that transport blood throughout the body. There are two primary circulatory loops in the human body: the pulmonary circulation loop and the systemic circulation loop. The heart is a muscular organ about the size of a closed fist that functions as the body’s circulatory pump. It takes in deoxygenated blood through the veins and delivers it to the lungs for oxygenation before pumping it
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Animal Physiology Friday January 13‚ 2012 What are Animals? Invertebrates No spinal column Vertebrates Spinal column Major Animal Phyla Porifera Cnidaria Platyhel-minths Mollusca Annileda Nematoda Arthro-poda Echino-dermata Chordata What is Animal Physiology? What is Physiology? “The study of how animals work” (function) Knut Schmidt-Nielsen (1915–2007) – came up with the whole scheme of animal physiology from cell to whole organism temperature
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The Cardiovascular System The heart is one the primary organs in our body. The cardiovascular (CV) system is made up of the heart‚ the blood and the vessels through which blood travels. The CV system works in sequence with the respiratory system to maintain homeostasis. The heart acts as a pump which move the blood through the blood vessels to the tissues and organs of the body. This allows the CV system to help maintain homeostasis by enabling it to carry out its four major functions
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1. Why do we need a cardiovascular system? Because we need to get oxygen through our system. 2. Make sure you know which circuits the left and right heart pump into (pulmonary or systemic). Also know the status of blood (fully oxygenated or not) at -the aorta: Left‚systematic‚ and fully oxygenated. -a pulmonary vein: Left side‚ pulmonary‚ and fully oxygenated. Goes from the right side of the body(heart) into the (left) pulmonary veins then goes to the left atrium then to the left ventricle then
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1a) 1b) Sedentary: < 45 ml/kg/min McArdle‚ W.D.‚ Katch‚ F. I.‚ & Katch‚ V. L. (2006) Untrained: 45 to 50 ml/kg/min McArdle‚ W.D.‚ Katch‚ F. I.‚ & Katch‚ V. L. (2006) Well-Trained: 50 to 60 ml/kg/min McArdle‚ W.D.‚ Katch‚ F. I.‚ & Katch‚ V. L. (2006) Highly Trained: 60-70 ml/kg/min McArdle‚ W.D.‚ Katch‚ F. I.‚ & Katch‚ V. L. (2006) Elite: > 70 ml/kg/min Lucia‚ A.‚ Hoyos‚ J.‚ Pérez‚M.
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Maykenzie Joy Freeman Health Cardiovascular Disease 3/30/2014 Cardiovascular Disease Assignment 1. Trace the path of a drop of blood from the time it enters the vena cava until it reaches your little finger. Be sure to include the types of blood vessels involved. Deoxygenated blood enters the right atrium from superior and inferior vena cava after having been circulated through the body. ----------------------- From the right atrium‚ blood moves to the right ventricle and is pumped through
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date 29 September 2014 03 October 2014 24 October 2014 28 October 2014 Qualification Unit number and title BTEC Applied Science level 3 Extended National Diploma – medical profile Unit 11: Physiology of human body systems (10 credits‚ 60 hours) Assignment title 2 Assignment 2/4: Physiology of the Cardiovascular and Respiratory Systems (P3‚ P4‚ M2‚ M3) Outcome 2 Be able to relate the structure of the circulatory system to its function in a multi-cellular organism Outcome 3 Be able to relate the structure
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Cardiovascular Dynamics Vessel Resistance Key Terms: 1. Blood flow- the amount of blood moving through a body area or the entire cardiovascular system in a given amount of time. 2. Pheriphial resistance- the opposition to blood flow resulting from the friction developed as blood streams through blood vessels. 3. Viscosity- A measure of the “thickness” of the blood and is caused by the presence of proteins and formed elements in the plasma 4. Systole 5. Diastole 6. End diastolic volume
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Erythrocytes Survive 120 Days Hemoglobin * Globin: 4 folded polypeptide chains * Heme: Iron group in each polypeptide that binds 02 Enzymes: * Glycolytic: generate energy through glycolysis due to lack of mitochondria * Carbonic anhydrase: for transport of CO2 into HCO3 Erythropoiesis: * regeneration of new cells in the bone marrow Erythropoietin (hormone): * when kidneys detect not enough 02 they secrete this hormone which stimulates erythropoiesis‚ increasing 02 capacity
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