Running Head: CARIOVASCULAR SYSTEM Cardiovascular System BSC1011 Advanced Biology Tuesday‚ January 17‚ 2012 Cardiovascular System The heart weighs 300 grams and is shaped like a grapefruit and has two atria‚ two ventricles‚ and four valves receive blood from both venae cavae and the four pulmonary veins‚ and throw it into the aorta and pulmonary trunk. The heart pumps blood to 9 liters per day‚ making from 60 to 160 beats per minute. The heart is covered with
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HRM 520: Human Resource Information System Assignment #4: E-Recruiting By: Lynette Woods May 26‚ 2012 Strayer University Retaining and acquiring talent with high qualities is critical to an organization’s success. As the labor force becomes more competitive and the available skills grow more diverse‚ HR professionals need to be more selective when choosing the right candidate. Poor recruiting decisions can result into long-term negative effects for the organization. Among this it would
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exceptional strength‚ talent and skill to humans and placed them at the top of Biological hierarchy. Flawless operating system of human was created by the Lord‚ yet genetic studies revealed that irregularities in genetic code and main control system may lead to death dealing disorders. Millions of unfortunate individuals suffering from different malformations authenticate the fact that nature has already performed extensive arbitrary mutagenesis on human brain‚ resulting in rich diversity of mutations
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The Respiratory System At the end of this topic students will be able to: • Compare the respiratory systems • Describe the mechanic of respiration - Air passage principals - Ventilation - Lung volume and respiration cycle - Respiration rate • Explain gas exchange - Partial pressure - Oxygen separation curve • Discriminate gas transportation - Oxygen and carbon dioxide Respiration : - all processes that accomplish movement of O2 from the environment to the tissues - has 2 components : a)
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OBJECTIVES: 1. List the organs that compose the cardiovascular system and discuss the general functions of this system. 2. Describe the location‚ size‚ and orientation of the human heart. 3. Define the term cardiology. 4. Describe the structure of the heart in terms of its coverings‚ layers‚ chambers‚ valves‚ and blood vessels. 5. Name the function of serous fluid around the heart. 6. Give another name for epicardium. 7. Describe the structure and function of the interventricular septum.
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1. The Structures of the Human Heart The human heart has four chambers: two ventricles‚ each of which is a muscular chamber that squeezes blood out of the heart and into the blood vessels‚ and two atria‚ each of which is a muscular chamber that drains and then squeezes blood into the ventricles. The two atria reside at the top of the heart; the two ventricles are at the bottom. And‚ the heart is divided into left and right halves‚ so there is a left atrium and left ventricle‚ as well as a right atrium
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Organization of the human body Human anatomy and physiology – study of the structure and function of the human body. Anatomy- the scientific discipline that investigates the structure of the human body. Physiology – The scientific discipline that investigates the process of functions of living things. 6 Structural levels 1. Chemical level – atoms combine to form molecules 2. Cell level – Molecule form organelles 3. Tissue level – similar and surrounding material make up tissues
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The human body is the entire structure of a human being and comprises a head‚ neck‚ trunk (which includes the thorax and abdomen)‚ arms and hands‚ legs and feet. Every part of the body is composed of various types of cell.[1] At maturity‚ the estimated average number of cells in the body is given as 37.2 trillion. This number is stated to be of partial data and to be used as a starting point for further calculations. The number given is arrived at by totalling the cell numbers of all the organs
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Compare the Circulatory system and the Lymphatic system Closely connected with the blood and circulatory system‚ the lymphatic system is an extensive drainage system that returns water and proteins from various tissues back to the blood stream. When blood reaches the arterial end of the capillary beds in the body tissues‚ fluid from the plasma is forced out of the capillaries by the blood pressure in to a space between the capillaries and the tissue cells. This fluid‚ called tissue fluid‚ is plasma
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laying in bed asleep‚ sitting listening to a teacher‚ or walking down the hallway‚ the cardiovascular and respiratory systems work together to regulate oxygen and waste throughout the body. When an activity becomes strenuous for a prolonged period of time‚ these systems must adapt to increase the capabilities of oxygen and waste management. The main function of the respiratory system is the exchange of gases with
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