椭圆囊

To clarify this issue, we carried out a study to determine whether or not otoliths in the lagena of homing pigeons are richer in magnetic elements than those in the saccule and the utricle.

为澄清这个争议，本研究分析成年信鸽瓶状囊耳石磁性元素的含量是否比内耳球囊和椭圆囊耳石更丰富。

Mammals have two otolithic organs, the utricle and the saccule. The macula lagena is another otolithic organ in the inner ear of non-mammals, and the lagena of more advaced birds develops better than that of lower animals.

哺乳动物只含有球囊和椭圆囊两种耳石器官，而非哺乳动物中还存在另外一种耳石器官——瓶状囊。

Body and internal auditory volume of Smad4-/-mice were obviously smaller than that of Smad4+/+ or Smad4+/- mice, and so did semicircular canal and crista ampullaris, utricle and macula utriculi, saccule and macula sacculi, endolymphatic duct and sac in the same manner. Outlines of vestibulum auris internae in Smad4-/- were normal but morphous had local malformation, and Semicircular canals in Smad4-/-, without morphous malformation, had different track compared with in Smad4+/+ or Smad4+/-.

纯合子小鼠体形、内耳颞骨体积明显小于野生型和杂合子，纯合子小鼠内耳前庭形态轮廓基本正常，局部畸形，半规管及半规管壶腹嵴、椭圆囊及斑、球囊及斑、内淋巴管和内淋巴囊均小于野生型和杂合子小鼠，其半规管走行与野生型和杂合子小鼠不同，但无明显畸形。3。

Results In adult homing pigeons, the contents of ferromagnetic elements in lagenal otoliths were less than 0.7% and were the same order in magnitude as those in saccular and utricular otoliths.

结果 成年信鸽瓶状囊耳石中磁性元素Fe、Co、Ni的含量不足Ca元素的0.7％，与球囊和椭圆囊耳石中的含量为同一数量级。

The present study found that the contents of ferromagnetic elements in lagenal otoliths of adult homing pigeons were less than 0.7% and were the same order in magnitude as those in saccular and utricular otoliths.

本研究的结果发现：成年信鸽瓶状囊耳石中铁磁性元素Fe、Co、Ni的含量不足Ca元素的0.7%，与球囊和椭圆囊耳石中的含量为同一数量级。

The contents of other metal elements Na, Mg, K, Al, Mn and Pb in lagenal otoliths were not significantly different from those in utricular and saccular otoliths.

瓶状囊耳石中其它金属元素Na、Mg、K、Al、Mn、Pb的含量与球囊和椭圆囊耳石相比无显著性差异，但Zn、Ba、Cu的含量略低于球囊耳石。

In the present study, I analyzed the contents of ferromagnetic elemetns and other metal elements in lagenal otoliths of adult homing pigeons with inductively coupled plasma mass spectrometry of high sensitivity(all the contents were normalized to Ca), and compared with those in saccular and utricular otoliths.

为此，本研究中应用高灵敏度和稳定性的电感耦合等离子体质谱法测定成年信鸽瓶状囊耳石样品中铁磁性元素Fe、Co、Ni以及其它金属元素的含量(以Ca作为基准的百分比含量)，并同内耳的球囊和椭圆囊耳石中的这些元素的含量进行比较。

Methods The contents of ferromagnetic elements and other metal elements in lagenal otoliths of adult homing pigeons were precisely analyzed with inductively coupled plasma mass spectrometry of high sensitivity, and then they were compared with those in saccular and utricular otoliths (all the contents were normalized to Ca).

应用具有高灵敏度和稳定性的电感耦合等离子体质谱法测定成年信鸽瓶状囊耳石样品中磁性元素Fe、Co、Ni以及其它金属元素的含量(以Ca含量作为基准的百分比含量)并同内耳的球囊和椭圆囊耳石中的这些元素的含量进行比较。

The contents of metal elements Zn, Ba and Cu in lagenal otoliths were lower than those in saccular otoliths. Conclusion The contents of magnetic elements in lagenal otoliths of homing pigeons are not much higher than those in utricular and saccular otoliths, which does not support the hypothesis that birds depend on high contents of Fe and Zn in lagenal otoliths for sensation of geomagnetic information.

结果表明成年信鸽瓶状囊耳石中磁性元素的含量极低而且不比内耳球囊和椭圆囊耳石更丰富，从而不支持信鸽因其瓶状囊耳石中含有较高的Fe、Zn等元素而能够感受地球磁场这一假说。

AQP3, 7, 8 distribute in a similar manner which is surrounding the membranous labyrihth, including Cortis organ, inner and outer spiral sulcus, stria vascularis, fibrocytes of the spiral ligament and the spiral limbus, saccular and utricular wall, endolymphatic sac and spiral ganglion.

AQP3，7，8三者的分布类似，在螺旋神经节和包绕膜迷路的组织中表达，包括Corti's器、内外螺旋沟、血管纹、螺旋韧带纤维细胞、螺旋缘、椭圆囊壁、球囊壁、内淋巴囊等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。