Breathing And Exercise
Bayani Gaba-gaba
Your resting breathing rate barely needs a thought, but within seconds of starting to run it climbs, your heart pounds, and your muscles start to burn. None of that is accidental: it is a coordinated response by the thorax, the blood and the nervous system to a sudden rise in the demand for oxygen. This topic covers the structures that move air in and out of the lungs, how the alveoli are built to exchange gases efficiently, how the body monitors and controls carbon dioxide levels, and what actually changes, physically, when you exercise regularly.
You also need to be able to interpret a spirometer trace, explain what a pulse rate tells you about fitness, describe how an oxygen debt builds up and is repaid, and know exactly how smoking damages both the respiratory and cardiovascular systems.
Manufura
- Know the structure of the thorax including the ribs, intercostal muscles, diaphragm, trachea, bronchi, bronchioles, alveoli and pleural membranes
- Explain the role of the intercostal muscles and the diaphragm in ventilation
- Explain how the lungs are adapted for gas exchange by diffusion
- Understand the terms lung capacity, vital capacity, tidal volume and interpret spirometer traces showing breathing movement
- Investigate the effect of exercise on the rate of breathing and measure lung capacity
- Describe the regulation of carbon dioxide content in the blood including the role of chemoreceptors in the aorta and carotid arteries
- Understand the term aerobic exercise
- Understand the long-term benefits of exercise on the cardiovascular system
- Understand the pulse rate as a measure of heart rate and explain why resting pulse can be used as a measure of physical fitness
- Explain why the heart rate changes during exercise and the influence of adrenaline
- Investigate the effect of exercise on the pulse rate
- Understand how an oxygen debt arises and how it is repaid after exercise
- Understand the damage to the respiratory and cardiovascular system caused by smoking
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Katunan tunawa
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Nazarin Darasi
Barka da kammala darasi akan Breathing And Exercise. Yanzu da kuka bincika mahimman ra'ayoyi da ra'ayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- Which muscles contract to pull the ribs up and out during inhalation? A) Internal intercostal muscles B) External intercostal muscles C) Diaphragm only D) Abdominal muscles Answer: B
- The maximum volume of air that can be forced out of the lungs after the deepest possible breath in is called: A) Tidal volume B) Residual volume C) Vital capacity D) Cardiac output Answer: C
- Chemoreceptors that detect a rise in blood carbon dioxide concentration are found in: A) The alveoli and bronchioles B) The aorta and carotid arteries C) The liver and kidneys D) The diaphragm Answer: B
- Carbon monoxide from cigarette smoke damages the body mainly by: A) Destroying cilia in the airways B) Narrowing blood vessels C) Binding to haemoglobin and reducing oxygen transport D) Causing lung cancer directly Answer: C
- An oxygen debt arises because: A) The lungs stop working during exercise B) Lactic acid produced by anaerobic respiration must be broken down using oxygen C) The heart stops pumping blood D) Carbon dioxide is no longer produced Answer: B
Yi aikin wadannan tambayoyi a cikin manhaja
Yi aikin wadannan tambayoyi a cikin manhaja
Littattafan da ake ba da shawarar karantawa
Ƙarin koyo daga tushe na buɗe
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Sashen littafi
Breathing
Describe how the structures of the lungs and thoracic cavity control the mechanics of breathing
"Biology: Breathing" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/39-3-breathing. Access for free at https://openstax.org/books/biology/pages/1-introduction
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Sashen littafi
Cardiac Physiology
Relate heart rate to cardiac output
"Anatomy and Physiology: Cardiac Physiology" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/anatomy-and-physiology/pages/19-4-cardiac-physiology. Access for free at https://openstax.org/books/anatomy-and-physiology/pages/1-introduction
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