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{{Point| | {{Point|With water intake, the (red→blue) negative feedback decreases the number of water channels.}} | ||
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[[メディア:heater-summer.mp4|動画と音声での説明]]<br> | [[メディア:heater-summer.mp4|動画と音声での説明]]<br> | ||
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[[ファイル:WaterIntakeBeforeBasicFeedbackToWaterChannels-ENG.jpg|left|500px]] | [[ファイル:WaterIntakeBeforeBasicFeedbackToWaterChannels-ENG.jpg|left|500px]] | ||
① | ① Water intake decreases plasma osmolarity, and water reabsorption (through the water channels) decreases plasma osmolarity. These effects are in the <font color="#ff0000">same direction (red).</font> | ||
<br style="clear:both;" /> | <br style="clear:both;" /> | ||
[[ファイル:WaterIntakeDuringBasicFeedbackToWaterChannels-ENG.jpg|left|500px]] | [[ファイル:WaterIntakeDuringBasicFeedbackToWaterChannels-ENG.jpg|left|500px]] | ||
② | ② Since these effects are in the <font color="#ff0000">same direction (red),</font> negative feedback <font color="#00f">decreases (blue)</font> the number of water channels and the water reabsorption. The plasma osmolarity-decreasing effect of the water reabsorption becomes weaker, and the plasma osmolarity returns to normal. | ||
<br style="clear:both;" /> | <br style="clear:both;" /> | ||
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//LEVEL:2 | //LEVEL:2 | ||
//RAND | //RAND | ||
Water intake {~increases~=decreases} plasma osmolarity, and water reabsorption (through the water channels) {~increases~=decreases} plasma osmolarity. Since these effects are in the {~=same~opposite} direction, negative feedback {~increases~=decreases} the number of water channels. | |||
</GIFT> | </GIFT> | ||
2024年4月1日 (月) 09:49時点における最新版
POINT!
| With water intake, the (red→blue) negative feedback decreases the number of water channels. |
① Water intake decreases plasma osmolarity, and water reabsorption (through the water channels) decreases plasma osmolarity. These effects are in the same direction (red).
② Since these effects are in the same direction (red), negative feedback decreases (blue) the number of water channels and the water reabsorption. The plasma osmolarity-decreasing effect of the water reabsorption becomes weaker, and the plasma osmolarity returns to normal.
Challenge Quiz
1.
Water intake increases decreases plasma osmolarity, and water reabsorption (through the water channels) increases decreases plasma osmolarity. Since these effects are in the same opposite direction, negative feedback increases decreases the number of water channels.