लार

(aangrezi:Saliva) is lekh mean manav sharir se sanbandhit ullekh hai. manushy ki mukh grasan guhika sadaiv lar namak taral se nam bani rahati hai. lar daantoan, jibh tatha mukhaguhika ki saphaee karati rahati hai. bhojan karate samay mukhaguhika mean lar ki matra badh jati hai aur yah mukh mean ae hue bhojan ko chikana tatha ghulanashil banati hai aur isake rasayanik vibandhan ko prarambh karati hai.

lar granthiyaan

lar ek sirami taral tatha ek chipachipe shleshm ka mishran hoti hai. lar ka sravan do prakar ki lar granthiyoan se hota hai-

1. laghu ya sahayak lar granthiyaan- ye hothoan, kapoloan (galoan), talu evan jibh par dhanki shleshmika mean upasthit anek chhoti–chhoti sirami evan shleshmika granthiyaan hoti haian. ye shleshmika kala ko nam banae rakhane ke lie tho di–tho di matra mean sidhe hi lar ka sravan mukhaguha mean sadaiv karati rahati haian.
2. vrihad ya pramukh lar granthiyaan- hamari mukh guhika mean lar ki adhikaansh matra ka sravan tin jo di b di lar granthiyoan ke dvara hota hai. ye mukhaguhika ke bahar sthit hoti haian aur apani vahikaoan dvara sravit lar ko mukhaguhika mean mukt karati haian. ye granthiyaan bahukoshikiy tatha pindakiy hoti haian. ye nimnalikhit hoti haian-
   1. adhojihva sabaliangual lar granthiyaan- inaka ek jo da jibh ke niche mukhaguha ke tal par sthit hota hai. ye kee mahin vahiniyoan ke dvara jab de v jibh ke niche khulati hai.
   2. adhohanu ya sabamaiksilari ya sabamaindibular lar granthiyaan- ye oopari v nichale jab de ke sandhi sthal ke pas sthit hoti hai. pratyek granthi ki vahini nichale jab de ke krintak daantoan ke thik pichhe khulati hai.
   3. karnamool ya pairotid lar granthiyaan- ye granthiyaan sir ke donoan or karnapallav ke kuchh niche sthit hoti haian. inaki vahiniyaan oopari krintak daantoan ke pichhe khulati haian.

lar granthiyoan se lar sravit hoti hai. isamean 98% jal aur 2% jal, shleshm (myoosin) tatha tayalin enjaim hota hai. tayalin bhojan ki mand ko sharkara mean parivartit karata hai aur myoosin lugdi ko chikana banata hai, jisase bhojan sugamatapoorvak grasika ki kramakuanchan gati ke dvara amashay mean pahuanch jata hai. Template:saancha:manav sharir2

panne ki pragati avastha

adhar

prarambhik

madhyamik

poornata

shodh

sanbandhit lekh

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