Gas Exchange in Mammals The mammalian respiratory system consists of the nasal cavity‚ pharynx‚ glottis‚ larynx‚ trachea‚ bronchi‚ bronchioles and air sacs (alveoli). The respiratory passages are lined by the presence of cilia and mucus-secreting cells‚ which keep them moist and trap dust‚ dirt and bacteria. The lungs are encased a rib cage. The rib cage is composed of the breastbone or sternum and ribs. At the bottom of the rib cage is a muscular diaphragm. Breathing in mammals. During inhalation
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Plant Transport Plants are mostly made up of water. Lettuce is about 94% water and a potato is about 77% water. Plants need water for three main purposes: ------photosynthesis‚ -support -transport of chemicals Water is a raw material for photosynthesis. If water is in short supply‚ the rate of photosynthesis will be limited. Plants need water for support‚ otherwise they wilt. Water is needed to transport many chemicals within plants. Chemicals‚ such as mineral salts‚ dissolve in water and
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II. BENEFITS OF EXERCISE About 100 B.C.‚ Cicero observed that “exercise and temperance can preserve something of our strength in old age.” Aristotle stressed the need for exercise to maintain “a healthy mind in a healthy body.” In the Misneh Torah‚ the twelfth century Jewish scholar and physician‚ Rabbi Moses Maimonides‚ strongly recommended daily exercise and warned that “anyone who sits around idle and takes no exercise will be subject to physical discomforts and failing strength.” Early in
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Children and muscle building programs‚ a safe choice? The importance of exercise in childhood development is beyond any discussion and we all realize that kids are more and more engaging in a sedentary lifestyle much like adults. So‚ it is very important to educate your child in healthy habits and to help develop a workout routine that is suitable for him or her. The question that is posed in this article is: should a bodybuilding workout be included in that routine? To start‚ let us define
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us |3.4 Breathing System and |Objectives | |Excretion |At the end of this sub section students should be able to: | |3.4.4 Lungs & Breathing |Draw and identify the breathing tract in humans
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The respiratory system The respiratory system is responsible for providing oxygen and removing carbon dioxide‚ heat and water vapours. All living creatures require oxygen and give off carbon dioxide. Oxygen is required for every cell in your body to function. Structure of the respiratory system: Normally air is taken in through your nose however sometimes it is taken in through your mouth and passes through a series of airways to reach the lungs. This series of airways is known as the respiratory
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March 18‚ 2013 Spirometry Lab Write-Up A. Subject History The subject is a twenty eight year old female. She stands five feet eight inches tall and weighs approximately one hundred fifty pounds. The subject is a non-smoker and although she has never had any respiratory issues‚ asthma does tend to run in her family on the maternal side. The subject does however admit to feeling out of breathe easily when doing intense exercise for an extended period of time. B. Effect of CO2 on Breathing
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Fatima Khan Q: WHAT IS THE CLINICAL IMPORTANCE OF URIC ACID AND CREATININE? ANSWER: URIC ACID Uric acid is a weak organic acid‚ the end product of purine nucleotides degradation. The findings of human pathological levels of uric acid in serum and urine have in most patients serious clinical implications. Uric acid is a useful diagnostic tool as screening for most of purine metabolic disorders. The importance of uric acid measurement in plasma and urine with respect of metabolic disorders is
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Muscle Soreness Nearly anyone who works out regularly has experienced sore muscles after exercise. Sometimes you will feel it later that night‚ or the next morning and in some cases‚ you may actually think you are out of the woods‚ only to wake up two days later with stiff‚ tender muscles that feel as tight as rubber bands. For some people‚ sore muscles are a reward after a hard workout. In fact‚ some people are not happy unless they are sore after their workout‚ while others could live without
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Aerobic VS Anaerobic Exercise Jane Doe Grantham University ABSTRACT Being in the military has caused me to become a better athlete than I have been before. Running is one of our main focuses and in my personal life I have strived to become better at it since I know that I despise running but need to improve on it. One of the things that I have learned is that in order for a high performance runner to reach a level that is desired to help max out their run time for military standards‚ the individual
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