為什么青蛙吞食時要眨眼

          日期:2019-7-14我要薦稿

          青蛙捕捉到食物后是未經咀嚼就吞下去的,因此在喉嚨口就很難下咽,需要有一個向里推的力量才能將食物咽下去,而青蛙的眨眼就是這樣一種力量。因為當青蛙的眼肌收縮時,眼球能稍向口腔突起,產生一種壓力,促使口腔中的食物下咽。所以,青蛙吞食時要眨眼。

          本文地址:http://www.fintgrp.com/wsm/77952.html

          931彩票 rr3405.com | www.9205b.com | js648888.com | qmbc9.com | www.56563b.com | www.68689l.com | www.190163.com | 2247tt.com | www.8494f.com | www.4996cz.com | www.8816x.com | a2848.com | www.3170002.com | www.5522d.cc | 80036.com | www.55268x.vip | www.115527v.com | zhcb2.com | 1294s.com | www.7415p.com | www.1555hc.com | 77606m.com | www.0759563.com | www.281138.com | lehu9088.com | 6644vn77.com | www.8905y.com | 66458d.com | yh888h.com | www.4972j.com | www.hm2333.com | dh4005.com | www.5319uuu.com | www.2418t.com | 8294x.com | www.y6889.com | www.68568h.com | 25250524.com | www.vns4668.cc | www.tctx2.com | 00048r.com | www.2061270.com | www.8039g.com | 30019kk.com | www.10852.com | www.3479z.com | 98345r.com | www.hg4355.com | www.99094s.com | ooo3405.com | 58588m.com | www.w84z.com | 3788p.com | www.xpj5005.com | www.178012.com | 8449hh.com | www.2997776.com | 2021ddd.com | www.2846m.com | www.120158.com | 364982.com | www.3589888.com | www.c9223.com | 655660000.com | www.996sun.com | www.52072i.com | 15a39.net | www.81678j.com | 38365j.com |