「Endocrinology/CaHomeostasis/IntroToVitD」の版間の差分

提供:一歩一歩
ナビゲーションに移動 検索に移動
編集の要約なし
編集の要約なし
25行目: 25行目:
In which of the following organs (two answers) is Vitamin D activated (hydroxylated)? {skin~=kidney~GI tract~=liver}
In which of the following organs (two answers) is Vitamin D activated (hydroxylated)? {skin~=kidney~GI tract~=liver}


 
//LEVEL:2
//RAND  
//RAND  
Is it possible to have active Vitamin D in your circulation without exposure to sunlight? {=Yes~No}
Is it possible to have active Vitamin D in your circulation without exposure to sunlight? {=Yes~No}

2019年6月2日 (日) 18:49時点における版

POINT!


An Introduction to Vitamin D

IntroToVitD.jpg

Ultraviolet rays convert Provitamin D in Vitamin D in the skin. This Vitamin D enters the circulation where it is taken up in the liver. Another source of Vitamin D is through absorption by the small intestine, this may also be taken up in the liver.

In the liver Vitamin D is hydroxylated. This hydroxylated Vitamin D enters the circulation where it can be further hydroxylated in the kidney to produce Active Vitamin D. This fully active Vitamin D enters the circulation.



Challenge Quiz

You must wait for the CORRECT! 正確!

<GIFT> //LEVEL:2 //RAND Which TWO of the following are the original sources of Vitamin D prior to entry into the circulation? {=skin~kidney~=GI tract~liver}

//LEVEL:2 //RAND In which of the following organs (two answers) is Vitamin D activated (hydroxylated)? {skin~=kidney~GI tract~=liver}

//LEVEL:2 //RAND Is it possible to have active Vitamin D in your circulation without exposure to sunlight? {=Yes~No}