動作電位的意思、翻譯和例句

是什麼意思

「動作電位」是指神經細胞和肌肉細胞在興奮時所產生的瞬時電位變化。它是神經信號傳遞和肌肉收縮的基礎。當細胞膜的電位達到一定閾值時,鈉離子通道開啟,鈉離子大量進入細胞,造成膜電位的急劇上升,隨後鉀離子通道開啟,鉀離子流出細胞,膜電位恢復到靜息狀態。這一過程稱為動作電位的產生。動作電位的傳遞是神經系統和肌肉系統正常運作的重要基礎。

依照不同程度的英文解釋

  1. An electrical signal in nerve cells.
  2. A change in electrical charge that sends messages.
  3. A quick change in voltage that helps nerves work.
  4. A rapid electrical impulse that travels along nerves.
  5. A spike in electrical activity that enables communication in the body.
  6. A transient depolarization of a cell membrane that propagates signals in neurons and muscle cells.
  7. An electrochemical event that allows for the transmission of signals across neurons.
  8. A momentary shift in membrane potential that facilitates action in excitable cells.
  9. A physiological phenomenon characterized by a rapid rise and fall in membrane potential, crucial for signal propagation in excitable tissues.
  10. A critical event where a cell's membrane potential rapidly changes, essential for neural and muscular function.

相關英文單字或片語的差別與用法

1:Action potential

用法:

指神經細胞在興奮時產生的電位變化,這是神經信號傳遞的基礎。當細胞受到刺激而達到閾值時,會引發動作電位,從而使信號沿著神經纖維傳遞。動作電位的特點是其快速和短暫的性質,通常持續幾毫秒。

例句及翻譯:

例句 1:

動作電位是神經系統中信息傳遞的關鍵。

Action potentials are key to information transmission in the nervous system.

例句 2:

神經元的動作電位使得信號能夠迅速傳遞。

The action potential in neurons allows signals to be transmitted rapidly.

例句 3:

動作電位的產生依賴於細胞膜的離子通道變化。

The generation of action potentials depends on changes in the ion channels of the cell membrane.

2:Nerve impulse

用法:

通常用來描述神經元產生的電信號,這些信號沿著神經纖維傳遞,以傳遞信息和指令。神經衝動是神經系統功能的基礎,涉及動作電位的產生。

例句及翻譯:

例句 1:

當我們感到疼痛時,神經衝動傳遞了這個信號。

When we feel pain, nerve impulses transmit that signal.

例句 2:

神經衝動的速度受到髓鞘的影響。

The speed of nerve impulses is affected by the myelin sheath.

例句 3:

神經衝動能夠快速傳遞信息至大腦。

Nerve impulses can quickly transmit information to the brain.

3:Electrical signal

用法:

廣泛用於描述任何形式的電流或電壓變化,特別是在生物系統中。動作電位是一種特殊的電信號,對於細胞的功能至關重要。

例句及翻譯:

例句 1:

心臟的跳動是由電信號控制的。

The heartbeat is controlled by electrical signals.

例句 2:

動作電位是一種特殊的電信號,對神經系統至關重要。

Action potentials are a special type of electrical signal crucial for the nervous system.

例句 3:

研究人員正在探索電信號在神經傳導中的作用。

Researchers are exploring the role of electrical signals in nerve conduction.

4:Depolarization

用法:

指細胞膜電位的變化過程,這是動作電位產生的關鍵步驟。當細胞膜的內部變得相對於外部更正電時,會觸發動作電位。

例句及翻譯:

例句 1:

去極化是動作電位產生的第一步。

Depolarization is the first step in generating an action potential.

例句 2:

細胞的去極化過程對於神經信號的傳遞至關重要。

The depolarization process of a cell is crucial for the transmission of nerve signals.

例句 3:

在去極化期間,鈉離子迅速進入細胞。

During depolarization, sodium ions rapidly enter the cell.