comparative anatomy -respiratory system

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COMPARATIVE ANATOMY: COMPARATIVE ANATOMY: ANIMAL BODY SYSTEMS: ANIMAL BODY SYSTEMS: RESPIRATORY SYSTEM RESPIRATORY SYSTEM AISD - 2009

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Anatomie comparativă, vertebrate, sistemul respirator

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COMPARATIVE COMPARATIVE ANATOMY:ANATOMY:ANIMAL BODY ANIMAL BODY SYSTEMS:SYSTEMS:RESPIRATORY SYSTEMRESPIRATORY SYSTEMAISD - 2009Respiratory SystemRespiratory SystemFunction: to provide oxygen gas need for cellular respiration and remove carbon dioxide from the bodyInvertebrate Organ: gills and trachae Main Vertebrate Organ !ose" mouth" pharynx" larynx" trachea" bronchi" bronchioles" lungs" gills" diaphragmRespiration in animalsRespiration in animals#hether they live in $ater or on land" all animals must respire% &o respire means to ta'e in oxygen and give o( carbon dioxide%Some animals rely of simple di(usion through their s'in to respire%#hile others)*ave developed large complex organ systems for respiration%Invertebrate respirationInvertebrate respirationInvertebrate respiratory organs have large surface areas Are in contact $ith air or $ater If re+uire di(usion they must be moist%A+uatic invertebratesA+uatic invertebratesA+uatic animals have naturally moist respiratory surfaces" and some respire through di(usion through their s'in% ,xample -elly.sh and anemonesSome larger a+uatic animals li'e $orms and annelids exchange oxygen and carbon dioxide through gills% /ills are organs that have lots of blood vessels that bring blood close to the surface for gas exchange%&errestrial Invertebrates&errestrial Invertebrates&errestrial invertebrates have respiratory surfaces covered $ith $ater or mucus%0&his reduces $ater loss1&here are many di(erent respiratory speciali2ed organs in terrestrial invertebrates% Spiders use parallel boo' lungs Insects use openings called spiracles $here air enters the body and passes through a net$or' of tracheal tubes for gas exchange Snails have a mantel cavity that is lined $ith moist tissue and an extensive surface area of blood vessels% *o$ does respiration in a+uatic invertebrates di(er from that in terrestrial invertebrates3Section !"#!Mo$$u%InectS&i'er/illSiphons4ovement of $ater5oo'lungAir6o$&rachealtubesSpiracles7igure 2989Invertebrate 7igure 2989Invertebrate Respiratory SystemsRespiratory Systems:ertebrate respiratory :ertebrate respiratory systemssystems;hordates have one of t$o basic structures for respiration /ills 8 for a+uatic chordates,xample tunicates" .sh and amphibians