Respiration Word Scramble
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Q | A |
Respiratory System (consists of) | nose, pharynx, larynx, trachea, bronchi, lungs |
trachea | proper name for windpipe |
bronchi | divisions of the trachea going to left and right lung and further dividing into bronchioles |
alveoli | tiny air sacs at the end of the bronchioles, thin walls one cell thick surrounded by capillaries |
gaseous exchange | oxygen (in) and carbon dioxide (out) passing through capillaries and alveoli |
respiration (purpose of) | to supply oxygen and remove carbon dioxide - pulmonary respiration |
respiratory muscles | internal intercostals, pectoralis minor, abdominals, scalenes, sternocleidomastoid |
respiratory centre | located in brain, sends nerve impulses to control breathing rate. main factor affecting breathing rate CO2 level in blood and resiratory centre |
breathing control | mainly involuntary, but can be conciously controlled during activities when required (eg swimming) |
tidal volume | 500ml - volume of air breathed in/out |
dead space | 150ml air reamining in nose throat and trachea |
minute ventilation | 6000-7500ml volume of air inspired/expired in 1 minute (tidal volume x breaths taken) |
inspiratory reserve volume | 3300ml additonal amount of air breathed in through forced inspiration |
inspiratory capacity | 3800ml tidal volume+inspiratory reserve |
expiratory reserve volume | 1200ml additional amount of air that can be forcibly expired |
residual volume | 1200ml volume remaining after maximum expiration |
expiratory capacity | 1700 ml tidal volume plus expiratory reserve |
functional residual volume | 2400ml air in lungs at resting expiratory level. expiratory reserve plus residual volume |
vital capacity | 4800ml maximum amount of air forcibly exhaled after maximum inspiration |
total lung capacity | 6000ml vital capacity + residual volume |
Created by:
sidneybetty
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