Changes

choice2="Kidney"

choice2="Kidney"

correctchoice="4"

correctchoice="4"

feedback4="'''Correct!''' Vitamin D3 is absorbed from the intestine or formed in the skin by the action of UV light on 7-dehydrocholesterol. It is then converted to 25-OH D3 in the liver by 25-hydroxylase. Next it is converted to its active form, calcitriol in the kidney. Calcitriol stimulates resorption of calcium and phosphate from bone and an increase in the amount of calcium and phosphate absorbed from the intestine. [[Calcium Homeostasis - Anatomy & Physiology#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback4="'''Correct!''' Vitamin D3 is absorbed from the intestine or formed in the skin by the action of UV light on 7-dehydrocholesterol. It is then converted to 25-OH D3 in the liver by 25-hydroxylase. Next it is converted to its active form, calcitriol in the kidney. Calcitriol stimulates resorption of calcium and phosphate from bone and an increase in the amount of calcium and phosphate absorbed from the intestine. [[Calcium#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback5="'''Incorrect.''' Vitamin D3 is absorbed from the intestine or formed in the skin by the action of UV light on 7-dehydrocholesterol. It is then converted to 25-OH D3 in the liver by 25-hydroxylase. Next it is converted to its active form, calcitriol in the kidney. Calcitriol stimulates resorption of calcium and phosphate from bone and an increase in the amount of calcium and phosphate absorbed from the intestine. [[Calcium Homeostasis - Anatomy & Physiology#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback5="'''Incorrect.''' Vitamin D3 is absorbed from the intestine or formed in the skin by the action of UV light on 7-dehydrocholesterol. It is then converted to 25-OH D3 in the liver by 25-hydroxylase. Next it is converted to its active form, calcitriol in the kidney. Calcitriol stimulates resorption of calcium and phosphate from bone and an increase in the amount of calcium and phosphate absorbed from the intestine. [[Calcium#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback3="'''Incorrect.''' Vitamin D3 is absorbed from the intestine or formed in the skin by the action of UV light on 7-dehydrocholesterol. It is then converted to 25-OH D3 in the liver by 25-hydroxylase. Next it is converted to its active form, calcitriol in the kidney. Calcitriol stimulates resorption of calcium and phosphate from bone and an increase in the amount of calcium and phosphate absorbed from the intestine. [[Calcium Homeostasis - Anatomy & Physiology#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback3="'''Incorrect.''' Vitamin D3 is absorbed from the intestine or formed in the skin by the action of UV light on 7-dehydrocholesterol. It is then converted to 25-OH D3 in the liver by 25-hydroxylase. Next it is converted to its active form, calcitriol in the kidney. Calcitriol stimulates resorption of calcium and phosphate from bone and an increase in the amount of calcium and phosphate absorbed from the intestine. [[Calcium#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback1="'''Incorrect.''' Vitamin D3 is absorbed from the intestine or formed in the skin by the action of UV light on 7-dehydrocholesterol. It is then converted to 25-OH D3 in the liver by 25-hydroxylase. Next it is converted to its active form, calcitriol in the kidney. Calcitriol stimulates resorption of calcium and phosphate from bone and an increase in the amount of calcium and phosphate absorbed from the intestine. [[Calcium Homeostasis - Anatomy & Physiology#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback1="'''Incorrect.''' Vitamin D3 is absorbed from the intestine or formed in the skin by the action of UV light on 7-dehydrocholesterol. It is then converted to 25-OH D3 in the liver by 25-hydroxylase. Next it is converted to its active form, calcitriol in the kidney. Calcitriol stimulates resorption of calcium and phosphate from bone and an increase in the amount of calcium and phosphate absorbed from the intestine. [[Calcium#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback2="'''Incorrect.''' Vitamin D3 is absorbed from the intestine or formed in the skin by the action of UV light on 7-dehydrocholesterol. It is then converted to 25-OH D3 in the liver by 25-hydroxylase. Next it is converted to its active form, calcitriol in the kidney. Calcitriol stimulates resorption of calcium and phosphate from bone and an increase in the amount of calcium and phosphate absorbed from the intestine. [[Calcium Homeostasis - Anatomy & Physiology#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback2="'''Incorrect.''' Vitamin D3 is absorbed from the intestine or formed in the skin by the action of UV light on 7-dehydrocholesterol. It is then converted to 25-OH D3 in the liver by 25-hydroxylase. Next it is converted to its active form, calcitriol in the kidney. Calcitriol stimulates resorption of calcium and phosphate from bone and an increase in the amount of calcium and phosphate absorbed from the intestine. [[Calcium#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

image= "">

image= "">

</WikiQuiz>  

</WikiQuiz>  

choice1="Insulin"

choice1="Insulin"

correctchoice="2"

correctchoice="2"

feedback2="'''Correct!''' Parathyroid hormone stimulates the formation of active vitamin D3 (calcitriol) and inhibits the formation of inactive vitamin D3, (24,25 (OH)2 D3). The release of parathyroid hormone is inhibited by an increase in calcitriol and blood calcium levels (an example of negative feedback). [[Calcium Homeostasis - Anatomy & Physiology#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]."

feedback2="'''Correct!''' Parathyroid hormone stimulates the formation of active vitamin D3 (calcitriol) and inhibits the formation of inactive vitamin D3, (24,25 (OH)2 D3). The release of parathyroid hormone is inhibited by an increase in calcitriol and blood calcium levels (an example of negative feedback). [[Calcium#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]."

feedback4="'''Incorrect.''' Thyroxine is not related to the regulation of the amount of active vitamin D3 in the body. Parathyroid hormone stimulates the formation of active vitamin D3 (calcitriol) and inhibits the formation of inactive vitamin D3, (24,25 (OH)2 D3). The release of parathyroid hormone is inhibited by an increase in calcitriol and blood calcium levels (an example of negative feedback). [[Calcium Homeostasis - Anatomy & Physiology#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback4="'''Incorrect.''' Thyroxine is not related to the regulation of the amount of active vitamin D3 in the body. Parathyroid hormone stimulates the formation of active vitamin D3 (calcitriol) and inhibits the formation of inactive vitamin D3, (24,25 (OH)2 D3). The release of parathyroid hormone is inhibited by an increase in calcitriol and blood calcium levels (an example of negative feedback). [[Calcium#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback3="'''Incorrect.''' Triiodothyronine is not related to the regulation of the amount of active vitamin D3 in the body. Parathyroid hormone stimulates the formation of active vitamin D3 (calcitriol) and inhibits the formation of inactive vitamin D3, (24,25 (OH)2 D3). The release of parathyroid hormone is inhibited by an increase in calcitriol and blood calcium levels (an example of negative feedback). [[Calcium Homeostasis - Anatomy & Physiology#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback3="'''Incorrect.''' Triiodothyronine is not related to the regulation of the amount of active vitamin D3 in the body. Parathyroid hormone stimulates the formation of active vitamin D3 (calcitriol) and inhibits the formation of inactive vitamin D3, (24,25 (OH)2 D3). The release of parathyroid hormone is inhibited by an increase in calcitriol and blood calcium levels (an example of negative feedback). [[Calcium#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback5="'''Incorrect.''' Epinephrine is not related to the regulation of the amount of active vitamin D3 in the body. Parathyroid hormone stimulates the formation of active vitamin D3 (calcitriol) and inhibits the formation of inactive vitamin D3, (24,25 (OH)2 D3). The release of parathyroid hormone is inhibited by an increase in calcitriol and blood calcium levels (an example of negative feedback). [[Calcium Homeostasis - Anatomy & Physiology#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback5="'''Incorrect.''' Epinephrine is not related to the regulation of the amount of active vitamin D3 in the body. Parathyroid hormone stimulates the formation of active vitamin D3 (calcitriol) and inhibits the formation of inactive vitamin D3, (24,25 (OH)2 D3). The release of parathyroid hormone is inhibited by an increase in calcitriol and blood calcium levels (an example of negative feedback). [[Calcium#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback1="'''Incorrect.''' Insulin is not related to the regulation of the amount of active vitamin D3 in the body. Parathyroid hormone stimulates the formation of active vitamin D3 (calcitriol) and inhibits the formation of inactive vitamin D3, (24,25 (OH)2 D3). The release of parathyroid hormone is inhibited by an increase in calcitriol and blood calcium levels (an example of negative feedback). [[Calcium Homeostasis - Anatomy & Physiology#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

feedback1="'''Incorrect.''' Insulin is not related to the regulation of the amount of active vitamin D3 in the body. Parathyroid hormone stimulates the formation of active vitamin D3 (calcitriol) and inhibits the formation of inactive vitamin D3, (24,25 (OH)2 D3). The release of parathyroid hormone is inhibited by an increase in calcitriol and blood calcium levels (an example of negative feedback). [[Calcium#Active Vitamin D Synthesis|WikiVet Article: Active vitamin D synthesis]]"

image= "">

image= "">

</WikiQuiz>  

</WikiQuiz>  

choice5="It decreases blood calcium by increasing renal excretion of calcium."

choice5="It decreases blood calcium by increasing renal excretion of calcium."

correctchoice="4"

correctchoice="4"

feedback4="'''Correct!''' Calcitonin decreases blood calcium by decreasing osteolysis and increasing osteogenesis. [[Calcium Homeostasis - Anatomy & Physiology#Calcitonin |WikiVet Article: Calcium homeostasis]]"

feedback4="'''Correct!''' Calcitonin decreases blood calcium by decreasing osteolysis and increasing osteogenesis. [[Calcium#Calcitonin |WikiVet Article: Calcium homeostasis]]"

feedback2="'''Incorrect.''' Decreasing osteolysis and increasing osteogenesis will decrease, not increase blood calcium. Calcitonin decreases blood calcium by decreasing osteolysis and increasing osteogenesis. [[Calcium Homeostasis - Anatomy & Physiology#Calcitonin|WikiVet Article: Calcium homeostasis]]"

feedback2="'''Incorrect.''' Decreasing osteolysis and increasing osteogenesis will decrease, not increase blood calcium. Calcitonin decreases blood calcium by decreasing osteolysis and increasing osteogenesis. [[Calcium#Calcitonin|WikiVet Article: Calcium homeostasis]]"

feedback1="'''Incorrect.''' Increased osteolysis and decreased osteogenesis will increase blood calcium. Calcitonin decreases blood calcium by decreasing osteolysis and increasing osteogenesis. [[Calcium Homeostasis - Anatomy & Physiology#Calcitonin |WikiVet Article: Calcium homeostasis]]"

feedback1="'''Incorrect.''' Increased osteolysis and decreased osteogenesis will increase blood calcium. Calcitonin decreases blood calcium by decreasing osteolysis and increasing osteogenesis. [[Calcium#Calcitonin |WikiVet Article: Calcium homeostasis]]"

feedback3="'''Incorrect.''' Calcitonin decreases blood calcium by decreasing osteolysis and increasing osteogenesis. PTH causes increased blood calcium by increasing osteolysis and decreasing osteogenesis. [[Calcium Homeostasis - Anatomy & Physiology#Calcitonin|WikiVet Article: Calcium homeostasis]]"

feedback3="'''Incorrect.''' Calcitonin decreases blood calcium by decreasing osteolysis and increasing osteogenesis. PTH causes increased blood calcium by increasing osteolysis and decreasing osteogenesis. [[Calcium#Calcitonin|WikiVet Article: Calcium homeostasis]]"

feedback5="'''Incorrect.''' Calcitonin has its effects on bone, not the kidney. Calcitonin decreases blood calcium by decreasing osteolysis and increasing osteogenesis. [[Calcium Homeostasis - Anatomy & Physiology#Calcitonin |WikiVet Article: Calcium homeostasis]]"

feedback5="'''Incorrect.''' Calcitonin has its effects on bone, not the kidney. Calcitonin decreases blood calcium by decreasing osteolysis and increasing osteogenesis. [[Calcium#Calcitonin |WikiVet Article: Calcium homeostasis]]"

image= "">

image= "">

</WikiQuiz>  

</WikiQuiz>  

choice4="PTH increases renal excretion of calcitriol."

choice4="PTH increases renal excretion of calcitriol."

correctchoice="3"

correctchoice="3"

feedback3="'''Correct!''' PTH increases the synthesis of calcitriol by enhancing the 1alpha- hydroxylation reaction in the kidney. [[Calcium Homeostasis - Anatomy & Physiology|WikiVet Article: Calcium homeostasis]]"

feedback3="'''Correct!''' PTH increases the synthesis of calcitriol by enhancing the 1alpha- hydroxylation reaction in the kidney. [[Calcium|WikiVet Article: Calcium homeostasis]]"

feedback5="'''Incorrect.''' The 25- hydroxylation reaction in the liver is the unregulated step that produces calcidiol. PTH increases the synthesis of calcitriol by enhancing the 1alpha- hydroxylation reaction in the kidney. [[Calcium Homeostasis - Anatomy & Physiology|WikiVet Article: Calcium homeostasis]]"

feedback5="'''Incorrect.''' The 25- hydroxylation reaction in the liver is the unregulated step that produces calcidiol. PTH increases the synthesis of calcitriol by enhancing the 1alpha- hydroxylation reaction in the kidney. [[Calcium|WikiVet Article: Calcium homeostasis]]"

feedback2="'''Incorrect.''' PTH increases the synthesis of calcitriol by enhancing the 1alpha- hydroxylation reaction in the kidney. [[Calcium Homeostasis - Anatomy & Physiology|WikiVet Article: Calcium homeostasis]]"

feedback2="'''Incorrect.''' PTH increases the synthesis of calcitriol by enhancing the 1alpha- hydroxylation reaction in the kidney. [[Calcium|WikiVet Article: Calcium homeostasis]]"

feedback1="'''Incorrect.''' PTH increases the synthesis of calcitriol by enhancing the 1alpha- hydroxylation reaction in the kidney. [[Calcium Homeostasis - Anatomy & Physiology|WikiVet Article: Calcium homeostasis]]"

feedback1="'''Incorrect.''' PTH increases the synthesis of calcitriol by enhancing the 1alpha- hydroxylation reaction in the kidney. [[Calcium|WikiVet Article: Calcium homeostasis]]"

feedback4="'''Incorrect.''' PTH increases the synthesis of calcitriol by enhancing the 1alpha- hydroxylation reaction in the kidney. [[Calcium Homeostasis - Anatomy & Physiology|WikiVet Article: Calcium homeostasis]]"

feedback4="'''Incorrect.''' PTH increases the synthesis of calcitriol by enhancing the 1alpha- hydroxylation reaction in the kidney. [[Calcium|WikiVet Article: Calcium homeostasis]]"

image= "">

image= "">

</WikiQuiz>  

</WikiQuiz>