TAILIEUCHUNG - Ebook Back to basics in physiology - O2 and CO2 in the respiratory and cardiovascular systems: Part 2

(BQ) Part 2 book "Back to basics in physiology - O2 and CO2 in the respiratory and cardiovascular systems" presents the following contents: Gases inside the body, liquid transport; the alveolar–capillary unit and V/Q matching; regulation of O2 and CO2 in the body and acid base; clinical recognition - Signs and symptoms of respiratory distress and their physiologic basis, clinical integration. | 82 Back to Basics in Physiology Well the body came up with two particularly genius innovations to solve the problem of moving O2 and CO2 around blood and the cardiovascular system. Blood holds on to the dissolved and nondissolved O2 and CO2. The cardiovascular system moves the blood around the body. Think about it like this O2 and CO2 in the body are packages that need to be delivered by the postal service. Now think about how the postal service works. Essentially mail trucks go to the shipping centers where they drop off their outgoing packages and pick up incoming packages after which they head out first at high speed through the interstates then through progressively smaller roads at a lower speed. Finally the mail trucks reach their intended destination where they drop of the packages to be delivered and pick up the outgoing packages and then head back to the shipping center to repeat the cycle all over again. If we exchange a couple of words from the previous paragraph this analogy works for O2 and CO2 Essentially red blood cells RBCs go to the lungs where they drop off CO2 and pick up O2. Then they head out first at high speed through the arteries then through progressively smaller arteries and arterioles at a lower speed. Finally the blood reaches the systemic capillaries where it drops off O2 and picks up CO2 and then heads back to the lungs to repeat the cycle all over again. The previous paragraph is a very succinct explanation of what blood does in the body. But in order to understand how exactly blood does what it does first we need to understand what it is. Blood is combination of water salts other solutes and cells. We can basically divide blood into two major parts 1 RBCs also known as erythrocytes and 2 blood plasma Figure . Plasma the liquid part of blood usually is around 55 of the total blood volume. It is made up of about 92 water 7 vital proteins such as albumin and things like clotting factors fats sugars vitamins and salts. The remaining

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• Back to basics in physiology
• The respiratory
• Cardiovascular systems
• Gases inside the body
• Liquid transport
• Clinical recognition
• Their physiologic basis
• Cellular respiration
• Functional anatomy of the lungs
• Blueprints of gas exchange
• The respiratory cycle
• Cellular and molecular basis
• Cardiac regeneration
• Physiologic homeostasis
• Adult mammalian heart
• Heart failure
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• kiến thức y học
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• Optical phenomena
• Mechanical phenomena
• Dynamic phenomena
• Permeability
• Morphologic
• physiologic basis