科普專欄–薯不揀單 - 三十秒科學–老鼠及兔仔會否流汗？

人、狗、鼠、兔均是恆溫動物，意思即是他們需要動用從新陳代謝中所獲取的能量來保持恆常體溫。554Please respect copyright.ＰＥＮＡＮＡFRs8QhOWda
554Please respect copyright.ＰＥＮＡＮＡW2ISUoykyW
554Please respect copyright.ＰＥＮＡＮＡJHd71iKQwY
在炎熱的天氣下，人及狗均能依靠流汗及喘氣作散熱的手段。554Please respect copyright.ＰＥＮＡＮＡxAYmBOzKa6
但鼠及兔皮下並沒有汗腺的關係，牠們沒有流汗的能力，同時亦沒有喘氣的習性。554Please respect copyright.ＰＥＮＡＮＡclWLvDxMD1
554Please respect copyright.ＰＥＮＡＮＡZNfsdOBxlY
（圖2）在行為方面，鼠及兔只好依靠躲藏或擺出不同的身體姿勢作散溫或保暖用途。554Please respect copyright.ＰＥＮＡＮＡo2Y2AJSPac
554Please respect copyright.ＰＥＮＡＮＡh7iHkrVoRb
554Please respect copyright.ＰＥＮＡＮＡCVUyEGAiMv
生理方面，鼠及兔能透過豎毛(Piloerection)，亦即是毛管戙來阻隔寒氣入侵，又或是擴張血管(Vasodilation)來加快散熱效能。554Please respect copyright.ＰＥＮＡＮＡoKnloCoVfs
554Please respect copyright.ＰＥＮＡＮＡIJtdVQ2GPr
（圖3）老鼠的尾巴約佔全身皮膚面積5%左右，但約17%的體溫調節功能均是透過尾巴的血管擴張及收縮來控制。554Please respect copyright.ＰＥＮＡＮＡ5Afo71dMKs
554Please respect copyright.ＰＥＮＡＮＡtMp71FdtWv
554Please respect copyright.ＰＥＮＡＮＡR5U9SuOD7f
至於兔仔的耳廓(Auricle)，其表面的血管亦跟老鼠尾巴帶有著調節溫度的功能。554Please respect copyright.ＰＥＮＡＮＡdJ56cByuIl
554Please respect copyright.ＰＥＮＡＮＡSgCXGNuGsA
554Please respect copyright.ＰＥＮＡＮＡrhmWhJgs6u
如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。554Please respect copyright.ＰＥＮＡＮＡR6gbE4MfT8
554Please respect copyright.ＰＥＮＡＮＡekx2Dg7BQl
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc554Please respect copyright.ＰＥＮＡＮＡd66lpRkftH
554Please respect copyright.ＰＥＮＡＮＡyFCDBmx3w1
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。554Please respect copyright.ＰＥＮＡＮＡwoEJVnkMTn
554Please respect copyright.ＰＥＮＡＮＡbs0Y7hVcTR
Link:554Please respect copyright.ＰＥＮＡＮＡ9yCH6hEVG2
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio554Please respect copyright.ＰＥＮＡＮＡykaDODZLB1
554Please respect copyright.ＰＥＮＡＮＡmTkOX2LHN2
554Please respect copyright.ＰＥＮＡＮＡAvpWKUyyHF
除非Facebook及IG重開侵侵的account，否則我的IG將不會再作更新，只會寄居本土LIHKG及Penana。554Please respect copyright.ＰＥＮＡＮＡjwOW5ai9ie

ns3.147.73.112da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章