Respiratory General Questions 1. What is the function of the epiglottis? a. The main function of the epiglottis is to prevent food and other particles from gaining entry into the trachea and other airways. 2. Do you see any anatomical reason why the right lung has more lobes than the left lung - and is subsequently larger and heavier? a. The right lung may be larger and heavier because it has more room to develop as such. The heart is roughly centered in the chest cavity; however‚ it is slightly
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mechanisms – Local + CNS Higher CNS centers (cerebral cortex‚ limbic system‚ hypothalamus)-> brain stem -> spinal cord -> respiratory system To control respiration‚ what cells should you actually control? -control skeletal muscles involves in inhalation and exhalation These cells control respiratory minute volume – how do you control them? -respiratory minute volume involves the freq. and volume of a respiratory cycle -motor neurons control skeletal muscle -both voluntary and involuntary
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Respiratory system: Minute ventilation is the quantity of oxygen which is taken in by your lungs per minute. When we exercise there is a higher oxygen intake per minute due to a higher breathing rate‚ we will also need more oxygenated blood cells to go round to the muscles in use to help try and prevent muscular injuries. The reason why when minute ventilation increases is positive to an athlete is because there is a higher intake of oxygen and nutrients needed. This will mean that the athlete
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The cardiovascular system consists of the heart‚ blood vessels‚ and blood. This system has three main functions: Transport of nutrients‚ oxygen‚ and hormones to cells throughout the body and removal of metabolic wastes (carbon dioxide‚ nitrogenous wastes). Atria: Ventricles: In a four-chambered heart‚ such as that in humans‚ there are two ventricles that operate in a double circulatory system: the right ventricle pumps blood into the pulmonary circulation to the lungs‚ and the left ventricle pumps
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through our body. The blood moves through pulmonary circulation and then continues on through systemic circulation. Pulmonary and systemic are the two circuits in the two-circuit system of higher animals with closed circulatory systems. As the heart pumps‚ blood is pushed through our body through the entire circulatory system. Oxygenated blood is pumped away from the heart to the rest of the body‚ while deoxygenated blood is pumped to the lungs where it is re-oxygenated before returning to the heart
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Structure of the heart: The heart is at the centre of the cardiovascular system. It is a hollow muscular pump that drives blood through the arteries‚ which allows it to reach the working muscles and tissues. The heart is split into two halves. The right side of the heart is separated from the left by a solid wall known as the septum. This prevents any blood on the right side coming into contact with the blood on the left side. The right side of the heart sends deoxygenated blood to the lungs in
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The Cardiovascular System: Intrinsic Conduction System 1. The intrinsic conduction system consists of __autorhythmic cardiac______ cells that initiate and distribute __impulses___ throughout the heart. 2. The intrinsic conduction system coordinates heart activity by determining the direction and speed of _heart depolarization___. This leads to a coordinated heart contraction. 3. List the functions for the following parts of the intrinsic conduction system: a. SA Node __initiates the depolarizing
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The Cardiovascular System CHAPTER SUMMARY The importance of the cardiovascular system cannot be overstated. This is one system that students frequently know something about‚ at least from a plumbing viewpoint‚ but they often don’t completely understand the complexity of the system and the magnitude of its tasks. An essential component of presentation of the material is then to outline in detail the role of the cardiovascular system and its significance to all other body systems. This chapter
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3. There are two types of blood‚ oxygen-rich and oxygen-poor in cardiovascular system. 3a. What’s the partial pressure of O2 and CO2 in oxygen-rich blood respectively? How do they affect the pH value of the blood (6 points)? Decides the development of CO2 and O2 amongst air and lungs‚ amongst lungs and blood‚ and amongst blood and body cells.Blood gets to be acidic when there is an expansion in CO2 content (this relationship will be portrayed further amid your class on blood-gas examination)
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Jogging Activity and Cardiovascular Fitness Today‚ people are becoming more aware of the importance of physical activity. There has been a recent increase in the popularity of fitness activities as hobbies. However‚ despite this increasing popularity in health related activities the large majority of the American population maintains a sedentary‚ unhealthy lifestyle that had led to increased obesity and morbidity rates. According to David Chandler‚ “The largest [obesity] increase has occurred in
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