report) Activity: Name: Instructor: Date: Respiratory Volumes Predictions 1. During exercise: TV will increase. 2. During exercise: IRV will decrease. 3. During exercise: ERV will increase. 4. During exercise: VC will not change. 5. During exercise: TLC will not change. Materials and Methods 1. Dependent Variable. respiratory volumes 2. Independent Variable. level of physical activity [resting or exercising] 3. Controlled Variables. height; age; sex 4. Which respiratory volume was calculated
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Surfactant Surfactants are also known as ‘surface active agents’. They are usually organic compounds that contain hydrophobic tails and hydrophilic heads. They have wetting‚ emulsifying and dispersing properties‚ which can be used to improve the wetting ability of water‚ break up stains and keep the dirt in the water solution to prevent re-deposition of the dirt onto the surface from which it has just been removed. Surfactant can act as wetting agent as it lowers the surface tension of water.
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the subject’s minute ventilation. The rise in minute volume‚ with exercise‚ could be accomplished by increasing the volume of each breath‚ the tidal volume‚ increasing the respiratory rate or by some combination of the two. In the subject’s case it was a combination of the two. Tidal volume is more effective at increasing minute ventilation than respiratory rate‚ however‚ if a subject is unfit they will be required to increase their respiratory rate as they cannot breath as deeply as someone with
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Respiratory Rate and Tidal Volume [pic] The total amount of air moved in and out of the lungs each minute (pulmonary ventilation) depends upon 2 factors: size of each breath (tidal volume) and number of breaths/minute (respiratory rate). For example‚ suppose your tidal volume is 500 mL (0.5 liters) and you breathe 15 times/minute. Your pulmonary ventilation = 15 breaths/min x 0.5 L/breath = 7.5 L/min. Pulmonary Ventilation = (Respiratory rate; breaths per minute) x Pulmonary Ventilation
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Global Entrepreneurship Program Entrepreneurship Boot Camp (6 ECTS‚ 36 hours‚ one week intensive seminar) Professor: Telephone: E-mail: Frédéric Delmar‚ PhD +33 (0)4 78 33 70 18/+46 8 665 45 32 delmar@em-lyon.com Office hours: Assistant: Friday‚ 9:00 – 12:00‚ or by appointment Elisabeth Gelas (gelas@em-lyon.com) Class Meetings Monday to Friday 08:30 am – 05.30pm Saturday 08:30 am – 12:00 am September‚ 5th September 10th‚ 2011 Course Materials: Textbook and a set of
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Pulmonary surfactant is a substance found on the alveolar wall that lowers alveolar surface tension. This decreases the muscle effort required to open and ventilate the lungs. Natural‚ endogenous surfactant is a compound composed of phospholipids‚ neutral lipids‚ and proteins that forms a layer between the alveolar surface and the alveolar gas and reduces alveolar collapse by decreasing surface tension within the alveoli. Surfactant replacement therapy rescue treatment a few hours after birth in
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Lung Volume Activity The graph below is called a spirograph. It represents the amount of air that moves into and out of the lungs with each breath‚ as measured by a device called a spirometer. (The terms that are used to describe the features of a spirograph are explained below.) • Tidal volume is the volume of air that is inhaled and exhaled in a normal breathing movement when the body is at rest. • Inspiratory reserve volume is the additional volume of air that can be taken into the lungs
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HIS 111 World Civilizations I Activity 4 – Town Creek Indian Mound 25 points Name: Bryce Ross Directions: After having read the section titled “Three Complex Societies” and either visiting the Town Creek Indian Mound or viewing its website‚ http://www.nchistoricsites.org/town/‚ respond to the following questions. Place your responses on this document under each question. Be sure to keep my questions on here. Your responses should include whole sentences with proper grammar and punctuation. 1
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breathing couldn’t happen without our respiratory system. With each breath‚ you take in air through your nose and mouth‚ as you do so your lungs will gradually fill up and eventually empty out. For some surfactant deficient newly born infants however each breath takes immense exertion. This exertion makes each tiny breath like the very first. “The majority of preterm infants less than 30 weeks gestation require extra assistance in the delivery room. Exogenous surfactant therapy has been an integral part
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thick diaphragm‚ are thought to be evolutionary adaptations allowing the elephant to remain underwater for long periods of time while breathing through its trunk which emerges as a snorkel.[4] Birds The main section for this topic is on the page Bird anatomy‚ in the section Respiratory system. The respiratory system of birds differs significantly from that found in mammals‚ containing unique anatomical features such as air sacs. The lungs of birds also do not have the capacity to inflate as birds
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