Zi Lin January 25‚ 2014 2B Cardiovascular Diseases The heart is an essential organ in the cardiovascular system responsible for pumping oxygen and nutrition filled blood to all parts of the human body. It is composed of four chambers; two upper chambers called the right and left atrium‚ and two lower chambers called the right and left ventricle. A structure called the septum is what divides the heart into right and left halves. Four heart valves keep the flow of blood in one direction. At rest‚ the
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Research & Methods Concerning Potassium Channels in the Cardiovascular System Response to Diabetes Mellitus and Hypertension ABSTRACT Research concerning the functional role of potassium ions in the cardiovascular system with respect to hypertension and diabetes mellitus has boomed in the past decade. Through a series of experiments‚ data has been gathered which shows the diverse response of K+ channels in the cardiovascular system when exposed to these diseases. In elevated glucose
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Cardiovascular risk factors There are many risk factors associated with coronary heart disease and stroke. Some risk factors such as family history‚ ethnicity and age‚ cannot be changed. Other risk factors that can be treated or changed include tobacco exposure‚ high blood pressure (hypertension)‚ high cholesterol‚ obesity‚ physical inactivity‚ diabetes‚ unhealthy diets‚ and harmful use of alcohol. Of particular significance in developing countries is the fact that while they are grappling with
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Chemical and Environmental Effects on the Heart Introduction The heart is the centerpiece of the circulatory system‚ its muscular contractions allow for the timely delivery of essential gases and nutrients to virtually all cells of the body. The pressure created by the heart also plays a vital role in eliminating wastes through organs such as the kidney‚ thus the heart delivers and helps maintain nutrient and waste composition throughout the body. The heart‚ like all muscle cells‚ releases ionic
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Shier‚ Butler‚ and Lewis: Hole’s Human Anatomy and Physiology‚ 12th ed. Chapter 13: Endocrine System Chapter 13: Endocrine System I. Introduction and II. General Characteristics of the Endocrine System (Outcome 13.1‚ 13.2‚ 13.3) A. The endocrine glands secrete . (Outcome 13.1‚ 13.2‚ 13.3) B. Hormones diffuse from ________________________ into ___________________ and eventually act on . (Outcome 13.2‚ 13.4) C. Paracrine secretions
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BIOS256 Week 2 LAB EXERCISE Introduction to Chemical Digestion Directions: a. Click the Contents button. b. Open the Digestive System File. c. Click Animations. d. Click Introduction to Chemical Digestion. Introduction 1. Explain the function of chemical digestion. The function is to break down food‚ using enzymes and other digestive chemicals to reduce food into particle nutrients molecules that be absorbed and move it through the digestive tract. Digestive Chemicals
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Cardiovascular Workout Log You will need to document six hours (or 360 minutes) to include a variety of physical activity. A variety of physical activity can be defined as a minimum of three different activities. Students are expected to log activities multiple times per week for each week enrolled in the HOPE course. You cannot complete and receive credit for this HOPE course if you do not complete each of the topic workout logs. You may either copy and paste this document into a word processing
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Without the cardiovascular system‚ we would not be alive. The cardiovascular system is essentially a synonym for the circulatory system which is "the system that circulates blood and lymph through the body‚ consisting of the heart‚ blood vessels‚ blood‚ lymph‚ and lymphatic vessels and glands" (Circulatory…). The cardiovascular system is crucial to have‚ as it supplies oxygen and gives nutrients to every part of our body. The cardiovascular system‚ in fact‚ is one of the most important systems consisting
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This concept was taken from module 5 "assessing problems related to cardiovascular assessment"‚ sub topic 1" assessment of the heart". According to statistics from world health organization‚ 20 million people died from heart related problems in 2015. This population records that half of this people fall under the age of 50 and 25% under the age of 40. The heart is a hollow muscular organ which is situated in the thoracic cavity. It is located between the lungs in the middle of the chest. The heart
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The cardiovascular system The cardiovascular system is a system that is able to transport things such as nutrients through the body in order for them to reach their destinations. The cardiovascular system is made up of our hearts‚ our blood vessels‚ arteries‚ veins and capillaries and our blood. The system is also linked to the respiratory system. The heart The heart is the size of a closed fist‚ this can be located in the thoracic cavity. The thoracic cavity is a chamber of the body that is between
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