[比解]盲鰻解剖觀察重點
※ [本文轉錄自 B91205XXX 看板]
作者: magicfx (有進步了吧?) 看板: B91205XXX
標題: [比解]盲鰻解剖觀察重點
時間: Mon Nov 1 01:05:53 2004
1.prominent notochord
2.no vertebrate column
3.no bone
4.only one semicircular duct
5.the shallow buccal funnel that lacks rasping denticles
6.A canal leads from the median nostril to the olfactory sac
and then continues to the pharyngeal cavity.
7.copious mucous coat
kidney:
1.Mesonephrons - Mesonephric duct
2.前腎消失
3.all nephrostomes have closed
4.no peritubular capillaries and no renal portal system
5.hanging into the coelom
6.helf the length of the coelom
Nerve:
1.only two preotic or anterior laterial-line nerves
Respiratory system:
1.naris
2.nasopharyngeal duct
3.velar chamber
4.velum
Note:
內鰓孔和咽直接相連
外鰓孔在離口很遠的後面 向外開口
使身體前部深入寄生組織 而不影響呼吸
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※ 編輯: magicfx 來自: 140.112.244.16 (11/01 01:06)
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