Neural?control?of?urination?-?micturition?reflex.

神經(jīng)控制排尿————排尿反射。

When?the?bladder?is?full,?stretch?receptors?in?the?wall?of?the?bladder?send?nerve?impulses?to?the?sacral?region?of?the?spinal?cord.

當(dāng)膀胱充滿時(shí)，膀胱壁的牽張感受器傳遞神經(jīng)沖動(dòng)至脊髓的骶骨區(qū)域。

By?way?of?a?parasympathetic?response,?signals?return?to?the?bladder?and?stimulate?contraction?of?the?muscle?of?the?bladder?and?relaxation?of?the?internal?urethral?sphincter.

通過(guò)副交感神經(jīng)反應(yīng)，信號(hào)傳回膀胱刺激膀胱肌肉收縮，并且使內(nèi)尿道括約肌松弛。

This?part?of?the?reflex?is?involuntary?and?is?predominant?in?infants?and?young?children.

這部分的返射是無(wú)意識(shí)的，在嬰幼兒中占主導(dǎo)地位。

As?the?central?nervous?system?matures,?it?acquires?voluntary?control?over?the?external?urethral?sphincter.

隨著中樞神經(jīng)系統(tǒng)發(fā)育成熟，它獲得對(duì)外部尿道括約肌的主動(dòng)控制。

Urination?is?controlled?mainly?by?the?micturition?center?in?the?pons.

排尿主要被腦橋的排尿中心所控制。

This?center?receives?sensory?signals?from?the?bladder?and?communicates?with?the?cortex?about?the?appropriateness?of?urinating?at?the?moment.

這個(gè)中心接受來(lái)自膀胱的感覺信號(hào)，與大腦皮層溝通當(dāng)前的小便的適當(dāng)性。

At?times?when?it's?not?convenient?to?urinate,?the?center?sends?back?an?inhibitory?signal?to?keep?the?sphincters?closed?and?prevent?voiding.

有時(shí)，當(dāng)不方便排尿時(shí)，這個(gè)中心就會(huì)向膀胱傳回抑制信號(hào)使得括約肌關(guān)閉，阻止排尿。

When?you?wish?to?urinate,?this?inhibition?is?removed;?the?spinal?cord?instructs?the?muscle?of?the?bladder?to?contract?and?the?sphincters?to?open?to?let?the?urine?out.

當(dāng)你希望拍尿時(shí)，這個(gè)抑制信號(hào)就會(huì)移除，脊髓指導(dǎo)膀胱括約肌收縮，括約肌打開讓尿液排出。