. An introduction to zoology [microform] : for the use of high schools. Zoology; Zoologie. l.^o lll(;il »0IIOOL ZOOLUUY. I h If â IP cuuca, which opoii into tho uiitoiior eiul of IIk* lii!"_i,'(i intoHtino. 10. Ct'itaiiily thomost reiiuiikjiMc f(!iitiu*o about tho icspiiiitory systom of ]>inls is tlu) (lovclopiiK^iit of air-sjics, whidh receive their air from the lungs, and are situated j)art!y among th«* viscera of the l)ody-cavity, partly bo- twtieu tlie muscles, and underneath the skin of the body, and finally within the bones, dis- placing the marrow in these. The function of the
. An introduction to zoology [microform] : for the use of high schools. Zoology; Zoologie. l.^o lll(;il »0IIOOL ZOOLUUY. I h If â IP cuuca, which opoii into tho uiitoiior eiul of IIk* lii!"_i,'(i intoHtino. 10. Ct'itaiiily thomost reiiuiikjiMc f(!iitiu*o about tho icspiiiitory systom of ]>inls is tlu) (lovclopiiK^iit of air-sjics, whidh receive their air from the lungs, and are situated j)art!y among th«* viscera of the l)ody-cavity, partly bo- twtieu tlie muscles, and underneath the skin of the body, and finally within the bones, dis- placing the marrow in these. The function of these air-sacs is not con- fined to su[>plementing the size of the lungs, (although a certain inter- change of between the blood and tho con- tents of the air-sacs must take phice),but they like- wise servo to render the body specifically lighter. Fiy. 94âViscera of tho Fowl, (after Brandt). Of, (osoithiijjfiis; ijjf, crop; tr, trachea; !; Ill, syrinx ; p, hui^c; c, licart; h, liver; dh, iieiKitio duct; vf,;^all-l)Ia(terfect than in tho reptiles, tho presence of four chambers in the heart, allowing tho comjdete separation of the blood which has been retuined for aeration, from that which is sent out by tho heart to the system. 11. In the lower Vertebrates the voice is little develojied,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wright, R. Ramsay (Robert Ramsay), 1852-1933. Toronto : Copp, Clark
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectzoology
