卵黄囊

The feather of the below neck prolong and droop to breast. Remex is black. The general dissection and morphologic observation of four Demoiselle crane. It is shown that the Demoiselle crane has advanced tongue, small intestine, liver and pancreas, and its caecum is so advanced comparatively ,but its craw is wondrous undeveloped.

本文对4只蓑羽鹤的消化系统进行了大体解剖和形态学观察，结果表明蓑羽鹤具有发达的舌、但嗉囊极其不发达，发达的小肠、肝脏和胰脏；有卵黄囊憩室，相对发达的盲肠；泄殖腔的粪道显著增大，其球形直径达32mm。

Under light microscope, the egg is an oblated and agglutinated demersal with a narrow perivitelline space; eggs ranged in diameter from 1.95 to 2.38 mm with a mean of 2.18 ± 0.03 mm; their membrane are smooth and they have 5 to 7 cannular keratose egg-filaments; the oil globules are multiple, ranged in diameter from 0.05 to 0.50 mm and in number from 7 to 145 with a mean of 28±2, the position of them migrate during embryonic development; the yolks are ivory-white with no segments, ranged in diameter from 1.00 to 2.30 mm with a mean of 1.90 ± 0.03 mm; the development phases of the embryo are variable. So they were identified as the eggs of one Beloniformes.

在光学显微镜下：卵呈微扁圆形，卵径1.95~2.38mm，粘着沉性；卵黄间隙较窄，卵黄囊呈乳白色，无龟裂；卵膜平滑，在其表面有5~7根细长角质管状卵膜丝；多油球数不定（4~145），油球径0.05~0.50mm，油球在卵黄囊中的位置随不同的发育时期而不断发生变化；胚体处在不同的发育阶段，其特征符合颌针鱼目鱼卵的特征。

Yolk sac larva Developmental stage of a fish larva characterised by the presence of a yolk sac ventrally in the gut region.

卵黄囊幼体鱼幼体的发育阶段特徵，描述在消化道区域腹部有一个卵黄囊。

Yolk-sac larva A fish larvae which has already hatched from the egg but has not started feeding yet and still absorbs the yolk in the ventrally attached sac.

卵黄期幼生鱼幼体的发育阶段特徵，描述在消化道区域腹部有一个卵黄囊。鱼幼体已经从卵孵化，但是仍然没有开始觅食而继续吸收在腹附著的卵黄囊。

By comparison, the hemogenic endothelium is proposed to characterize the generation of hematopoietic stem cells from mature endothelium in the PSp/AGM region.

在卵黄囊和PSp/AGM区，造血和内皮细胞的发育关系分别表现出不同的特点：二者在卵黄囊共同来源于成血血管细胞；在AGM区则更多表现为生血内皮的模式。

Hepatoid variant of yolk sac tumor: Usually seen under 25 year old woman. You shoud search other areas to see if there is classic reticular pattern of YST. IHC can include AFP.

肝样卵黄囊瘤：经常发生于25岁以下的女性中，观察其他区域是否具有卵黄囊瘤典型的网状结构，免疫组化包括AFP。

Yesterday, 41 days, the first time a B-, intra-uterine pregnancy sac see dark oval area, about 1.1cm * 0.5cm * 0.9cm, capsule wall thickness, a strong echo, no capsule yolk sac and germ, no possession of the original heart throb, this normal?

孕期41天，B超检查昨天41天，第一次做了B超，宫内见椭圆型孕囊暗区，约1.1cm*0.5cm*0.9cm，囊壁厚，回声较强，囊内未见卵黄囊及胚芽，未见原始心管搏动，这正常吗？

Uterine cross-section diameter of 4.8cm × 3.9 cm × 3.9 cm, increased intra-uterine pregnancy sac see the size of 1.3 cm * 0.9 cm * 1.6 cm, intracapsular see yolk sac, no embryo and fetal heart throb teeth.

子宫切面内径4.8cm×3.9㎝×3.9㎝，增大子宫内见妊娠囊大小1.3㎝*0.9㎝*1.6㎝，囊内见卵黄囊，未见胚牙及胎心搏动。

Result The test shows that there's pregnant vesica with least diameter 3mm and largest diameter 6mm.

结果］检测到孕囊最小直径3mm，最大直径6mm，孕囊内均未见卵黄囊回声。

After the yolk bag of the inside goldfish fry body disappeared, the feeding should be starting with yolk water (50g egg yolk:5kg water ratio) by twice feeding daily.

4当鱼苗体内卵黄囊消失后，即可餵饲卵黄水（50g蛋黄调5kg水比例），通常每天上、下午各一次。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。