Page 58 - Zoology

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cÖkœt gvby‡li Kv‡bi wewfbœ As‡ki MVb I KvR eY©bv Ki|
Kvb t Kvb gvby‡li GK we‡kl Bw›`ªq hv GKvav‡i kÖeY I †`‡ni fvimvg¨ wbqš¿Y K‡i|

MVbt gvby‡li KY© wb‡gœv³ 3wU cÖavb As‡ki mgš^‡q MwVZt
K) ewntKY© (External ear) L) ga¨ KY© (Middle ear) M) AšÍtKY© (Internal ear)
wb‡gœ G‡`i eY©bv †`Iqv nj-
K) ewntKY© (External ear) t Bnv K‡Y©i cÖ_g Ask| Bnv wb‡gœv³ wZbwU As‡ki mgš^‡q MwVZ|
1. KY©QÎ ev wcbv (Pinna)t K‡Y©i G‡Kev‡i evwn‡ii Ask‡K KY©QÎ / wcbv e‡j| Bnv Z¡K, †ckx I Ziybvw¯’i mgš^‡q MwVZ Aa©e„ËvKvi Ask|
wcbv ¯Íb¨cvqx‡`i GKwU mbv³Kvix ˆewkó¨| KvR t KY©QÎ kãZi½ msMÖn I †K›`ªxf~Z K‡i KY©Kzn‡i †cÖib K‡i|
2. KY©Kzni ev ewn:AwWUwi wgUvm (External auditory meatus) t KY©Q‡Îi †K›`ª †_‡K wUg‡cwbU c`©v ch©šÍ we¯Í…Z bjvKvi MnŸiwU‡K
KY©Kzni e‡j| Gi evB‡ii `yB Z…Zxqvsk ZiæYvw¯’ w`‡q Ges GK Z…Zxqvsk Aw¯’‡Z MwVZ| Bnv AmsL¨ †jvg I †gvgMÖwš’ wewkó Z¡K Øviv Ave„Z|
KvRt Bnv KY©QÎ Øviv M„nxZ kã Zi½ KY©cU‡n †cŠ‡Q †`q| G‡Z Aew¯’Z †jvg I †gvg K‡Y©i Af¨šÍ‡i ayjvevwj cÖ‡ek evav †`q I RxevYy bvk K‡i|
3. KY© cUn ev wUg‡cwbK c`©v (Tympanic membrane) t KY©Kzn‡ii wfZ‡ii cÖv‡šÍ GKwU cvZjv I w¯’wZ¯’vcK wW¤^vKvi c`©v
Aew¯’Z Bnv‡K wUg‡cwbK c`©v ev KY©cUn e‡j| Bnv AšÍtK‡Y©i g¨vwjqvm Aw¯’i mwnZ mshy³|
KvRt Bnv kãZi½‡K ga¨K‡Y© †cÖiY K‡i|

L) ga¨ KY© (Middle ear)t ga¨KY© GKwU Amg AvKv‡ii evqyc~Y© cª‡Kvô we‡kl| Bnv ewntKY© I AšÍtK‡Y©i g‡a¨ wUg‡cwbK eyjv
(middle ear cavity) i wfZ‡i Aew¯’Z| G‡Z wb‡gœv³ Ask mg~n eZ©gvb-
1. BD‡÷wkqvb bvjxt Bnv GKwU miy bvjx we‡kl| Bnv ga¨K‡Y©i AsKxq‡`k n‡Z Mjwej ch©šÍ we¯Í…Z|
KvRt KY©cU‡ni Dfq cv‡k¦©i evqyi Pv‡ci mgZv i¶v K‡i|

2. KY©vw¯’ (Ear ossicle) t G¸‡jv ga¨K‡Y©i MnŸ‡i Aew¯’Z ci¯úi ‡ckx w`‡q hy³ n‡q µgvš^‡q mywbw`©ófv‡e mvRv‡bv
3wU †QvU Aw¯’| Aw¯’ wZbwU n‡”Q-
i) g¨vwjqvm (Malleus) t Bnv †`L‡Z nvZzwoi b¨vq| Bnvi GK cÖvšÍ KY©cU‡ni mv‡_ Ges Aci cÖvšÍ BbKv‡mi mv‡_ hy³|
ii) BbKvm (Incus) t Bnv †`L‡Z †bnvB ev evUvjxi gZ| Bnv g¨vwjqvm I †÷wcm‡K mshy³ K‡i|
iii) †÷wcm (Stapis) t w·KvYvK…wZi GB Aw¯’wU GKw`‡K BbKv‡mi mv‡_ Ab¨w`‡K †d‡bóªv Ifvwjm bvgK wQ‡`ªi Mv‡q emv‡bv _v‡K|
3. wQ`ªc_t ga¨K‡Y©i cÖvPxi †cwiIwUK Aw¯’ Øviv MwVZ| Gi Dc‡ii w`‡K †d‡bóªv Ifvwjm Ges bx‡Pi w`‡K †d‡bóª †ivUvÛv bvgK wQ`ª Aew¯’Z|
KvRt †d‡bóªv Ifvwj‡mi gva¨‡g kã ga¨KY© n‡Z AšÍtK‡Y© cÖ‡ek K‡i| kã Zi½ KKwjqvq cÖ‡e‡ki ci Ae‡k‡l
†d‡b÷ªv †ivUvÛvi gva¨‡g evB‡i P‡j Av‡m|
M) AšÍtKY© (Internal ear)t cÖ‡Z¨K AšÍtKY©
K‡ivwUi kÖywZ‡KvU‡ii Af¨šÍ‡i Aew¯’Z| AšÍtK‡Y©i

cÖavb Ask †gg‡eªbvm j¨vwewiš’| GwU Aw¯’gq
j¨vwewiš’-G cwi‡ewóZ| †gg‡eªbvm j¨vwewiš’
G‡Ûvwjç bvgK Zi‡j Ges Aw¯’gq j¨vwewiš’
†cwiwjç-G c~Y©| cÖ‡Z¨K AšÍtKY© `ywU cÖ‡Kvô wb‡q
MwVZ t (1) BDwUªKyjvm Ges (2) m¨vKzjvm|
1) BDwUªKzjvm (fvimvg¨ As½) t Bnv AšÍtK‡Y©i
Dc‡ii w`‡Ki †MvjvKvi cÖ‡Kvô| G‡Ûvwj‡ç c~Y©

_v‡K| G‡Z wb‡gœv³ Askmg~n eZ©gvb|
K) Aa©e„ËvKvi bvjx t BDwUªKzjv‡mi mv‡_ wZbwU Aa©e„ËvKvi bvjx hy³ _v‡K| G‡`i
g‡a¨ 2wU Dj¤^fv‡e, 1wU Avbf~wgKfv‡e
Ae¯’vb K‡i| bvjx¸wj ci¯úi mg‡Kv‡Y Aew¯’Z| GB bvjx¸wji Dfq cÖvšÍB
BDwUKzjv‡m gy³ nq|
L) A¨v¤úyjv t cÖwZwU Aa©e„ËvKvi bvjxi GKcÖvšÍ ùxZ n‡q A¨v¤úyjv MVb
K‡i| Gi g‡a¨ ms‡e`x †ivg _v‡K| †ivg¸wj Pzbgq A‡Uvwj_ `vbv
m¤^wjZ †Rjxi g‡Zv Kz¨cyjvq Ave„Z _v‡K|
KvRt †`‡ni fvimvg¨ wbqš¿‡b gw¯Í‡®‹i †mwi‡ejvg‡K mvnvh¨ Kiv Ges †`n Ae¯’v‡bi Abyf~wZi D‡`ªK Kiv|

2) m¨vKzjvm (kªeb A½)t Bnv AšÍtK‡Y©i wb‡Pi cÖ‡Kvô| Bnvi cðvr Ask kvgy‡Ki †Lvj‡Ki b¨vq cu¨vPv‡bv GKwU bvjxKvi m„wó K‡i‡Q|
Bnv‡K KK&wjqv e‡j| GwU wZbwU cÖ‡Kv‡ô wef³-
K) ¯‹¨vjv †fw÷eywj t GwU Dc‡ii cÖ‡Kvô| GwU †cwiwjç Øviv c~Y©|
mbRq P›`ª gÛj, mnKvwi Aa¨vcK, Dw™¢`weÁvb wefvM, RqcyinvU miKvwi K‡jR, RqcyinvU| 01713747235