宫颈糜烂,月经病,妊娠

妊娠

妊娠是新个体产生的过程,包括受精、着床、妊娠维持、胎儿成长以及分娩。
受精。精子与卵子在输卵管壶腹相遇而受精,在上亿的精子中只有200个左右能接近卵子,一般来说,其中只有一个能与卵子结合而受精。这说明在精子与卵子的运输过程中发生了许多复杂的变化。从精子方面来说,进人阴道的精子绝大部分很快被阴道内的酶杀伤失去活力,存活的精子随后又遇到子宫颈粘液的拦截。子宫颈粘液在月经中期,受雌激素的刺激时,液体清亮透明,精子通过的可能性较大,其它时间则难以通过。有些精子又因精液始终保持胶体状态而不液化,也失去活力。少数的精子靠本身的运动及受精后引起的子宫收缩,才被送至子宫,进入输卵管,与卵子相遇。从卵子来说,它达到输卵管,也要经历一段复杂的过程。首先,输卵管伞端要顺利地汲取卵子;其次,输卵管平滑肌及上皮细胞纤毛的活动,在时间与强度上必须适合;还有,卵子外面的卵反细胞、放射冠、透明带及卵黄膜均应处于良好状态,否则,运行将发生困难。
若一切情况适合,精子与卵子在壶腹部相遇,在相互靠近,即将接触的一瞬间,精子顶体中的酶系便释放出来,称为顶体反应。
受精卵在运行至子宫途中,一面移动,一面进行细胞分裂,形成胚泡;约1周左右,胚泡进入子宫,胚泡的运行需维持雌激素与孕酮的适当比例,才能正常进行。
着床。是胚泡通过与子宫内膜相互作用而植入子宫的过程。

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Tongkat Ali is known to boost performance, stamina, and muscle mass in bodybuilding. In a clinical study conducted with a group of men, half the male was given Tongkat Ali to consume while the other half were not. During a few weeks of the physical training program, the men who consume the herbs experienced greater muscle mass gain, stamina, and strength. There were also a growing number of Asian athletes and bodybuilders whom are using Tongkat Ali as an androgen booster to improve muscle size and enhance their sports performance.

Testosterone is a male hormone that can be found in both men and women. But it is more of the male characteristics. Usually, at age 30, blood levels of testosterone start to decline slowly. If testosterone declines in a man’s body, his muscles, energy, and libido begin to decrease. Men who smoke and drink alcohol excessively lose testosterone faster than those who don’t. Male hormones or testosterone stimulates metabolism, promotes fat burning, increases red blood cells and muscle growth.

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