Polydactyly - Revision history

Nnjm2 at 00:05, 28 November 2014

2014-11-28T00:05:10Z

← Older revision		Revision as of 00:05, 28 November 2014
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	Polydactyly is a medical term used to describe extra fingers on the hands or toes on the feet<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>. They are a [[Congenital anomaly\|congenital anomaly]] as they are present at birth. The extras fingers and toes may vary in size as some are fully formed and functionally and others just small, non-functional nubs. Moreover, extra digits found adjacent to the thumb or big toes are known as [[Pre-axial digits\|pre-axial digits]], while the ones located centrally in the hand or foot are known as [[~~post~~-axial digits\|post-axial digits]] <ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>. In addition, polydactyly can occur bilaterally – both hands and feet, or it may occur on just one hand or foot and even a combination of both.		Polydactyly is a medical term used to describe extra fingers on the hands or toes on the feet<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>. They are a [[Congenital anomaly\|congenital anomaly]] as they are present at birth. The extras fingers and toes may vary in size as some are fully formed and functionally and others just small, non-functional nubs. Moreover, extra digits found adjacent to the thumb or big toes are known as [[Pre-axial digits\|pre-axial digits]], while the ones located centrally in the hand or foot are known as [[Post-axial digits\|post-axial digits]] <ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>. In addition, polydactyly can occur bilaterally – both hands and feet, or it may occur on just one hand or foot and even a combination of both.

	~~<br>~~		=== Inheritance ===

	=~~= Inheritance ==~~		<span style="line-height: 1.5em; font-size: 13.63636302948px;">The probability of inheriting the condition varies as sometimes it appears to be a [[Dominant\|dominant]] [[Trait\|trait]] with a 50% chance of being passed on to the [[Gametes\|gametes]], whereas other times it appears [[Recessive\|recessive]], giving a much lower chance of passing on the gene, depending on the partner’s history. In addition, the way in which the condition is expressed varies, for example, a parent might have an extra finger while their child has an extra toe. However, polydactyly can even occur when there is no family history of it.</span>

	~~<span style~~="line-height: 1.5em; font-size: 13.63636302948px;">The probability of inheriting the condition varies as sometimes it appears to be a [[Dominant\|dominant]] [[trait\|trait]] with a 50% chance of being passed on to the [[Gametes\|gametes]], whereas other times it appears [[Recessive\|recessive]], giving a much lower chance of passing on the gene, depending on the partner’s history. In addition, the way in which the condition is expressed varies, for example, a parent might have an extra finger while their child has an extra toe. However, polydactyly can even occur when there is no family history of it.</span>		=== Causes ===

	== Causes ==

	Polydactyly occurs when the body follows a different set of directions than usual during the formation of the hands or feet in [[Development\|development]], however researchers are still learning about the genes that cause the extra digit to form.		Polydactyly occurs when the body follows a different set of directions than usual during the formation of the hands or feet in [[Development\|development]], however researchers are still learning about the genes that cause the extra digit to form.
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	The trait may be passed down in families as an isolated, [[Benign\|benign condition]], like having a [[Hitchhiker's thumb\|hitchhiker's thumb or]] being [[Double jointed\|double jointed]], which is considered a [[Non-syndromic anomaly\|non-syndromic anomaly]], otherwise, the [[Trait\|trait]] may exist as part of a syndrome, which is a group of several recognizable clinical features that often occur together<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>.		The trait may be passed down in families as an isolated, [[Benign\|benign condition]], like having a [[Hitchhiker's thumb\|hitchhiker's thumb or]] being [[Double jointed\|double jointed]], which is considered a [[Non-syndromic anomaly\|non-syndromic anomaly]], otherwise, the [[Trait\|trait]] may exist as part of a syndrome, which is a group of several recognizable clinical features that often occur together<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>.

	Some syndromes that might present with polydactyly include [[Asphyxiating thoracic dystrophy\|Asphyxiating thoracic dystrophy]], [[Carpenter Syndrome\|Carpenter syndrome]], [[Familial polydactyly\|Familial polydactyly]] and [[~~Trisomy_13~~\|Trisomy 13]] <ref>Nlm.nih.gov, (2014). Polydactyly: MedlinePlus Medical Encyclopedia. [online] Available at: http://www.nlm.nih.gov/medlineplus/ency/article/003176.htm [Accessed 27 Nov. 2014].</ref>.		Some syndromes that might present with polydactyly include [[Asphyxiating thoracic dystrophy\|Asphyxiating thoracic dystrophy]], [[Carpenter Syndrome\|Carpenter syndrome]], [[Familial polydactyly\|Familial polydactyly]] and [[Trisomy 13\|Trisomy 13]] <ref>Nlm.nih.gov, (2014). Polydactyly: MedlinePlus Medical Encyclopedia. [online] Available at: http://www.nlm.nih.gov/medlineplus/ency/article/003176.htm [Accessed 27 Nov. 2014].</ref>.<br>

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	~~== References~~<br~~> ==~~

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	<~~references /~~>		=== References<br> ===

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140576638 at 20:11, 27 November 2014

2014-11-27T20:11:39Z

← Older revision		Revision as of 20:11, 27 November 2014
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	== Inheritance ==		== Inheritance ==

	<span style="line-height: 1.5em; font-size: 13.63636302948px;">The probability of inheriting the condition varies as sometimes it appears to be a [[Dominant\|dominant]] [[~~Trait~~\|trait ~~with~~]] a 50% chance of being passed on to the [[Gametes\|gametes]], whereas other times it appears [[Recessive\|recessive]], giving a much lower chance of passing on the gene, depending on the partner’s history. In addition, the way in which the condition is expressed varies, for example, a parent might have an extra finger while their child has an extra toe. However, polydactyly can even occur when there is no family history of it.</span>		<span style="line-height: 1.5em; font-size: 13.63636302948px;">The probability of inheriting the condition varies as sometimes it appears to be a [[Dominant\|dominant]] [[trait\|trait]] with a 50% chance of being passed on to the [[Gametes\|gametes]], whereas other times it appears [[Recessive\|recessive]], giving a much lower chance of passing on the gene, depending on the partner’s history. In addition, the way in which the condition is expressed varies, for example, a parent might have an extra finger while their child has an extra toe. However, polydactyly can even occur when there is no family history of it.</span>

	== Causes ==		== Causes ==

140576638 at 19:43, 27 November 2014

2014-11-27T19:43:55Z

← Older revision		Revision as of 19:43, 27 November 2014
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	Polydactyly is a medical term used to describe extra fingers on the hands or toes on the feet<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>. They are a [[~~congenital~~ anomaly\|congenital anomaly]] as they are present at birth. The extras fingers and toes may vary in size as some are fully formed and functionally and others just small, non-functional nubs. Moreover, extra digits found adjacent to the thumb or big toes are known as [[~~pre~~-axial digits\|pre-axial digits]], while the ones located centrally in the hand or foot are known as [[post-axial digits\|post-axial digits<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>]]. In addition, polydactyly can occur bilaterally – both hands and feet, or it may occur on just one hand or foot and even a combination of both.		Polydactyly is a medical term used to describe extra fingers on the hands or toes on the feet<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>. They are a [[Congenital anomaly\|congenital anomaly]] as they are present at birth. The extras fingers and toes may vary in size as some are fully formed and functionally and others just small, non-functional nubs. Moreover, extra digits found adjacent to the thumb or big toes are known as [[Pre-axial digits\|pre-axial digits]], while the ones located centrally in the hand or foot are known as [[post-axial digits\|post-axial digits]] <ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>. In addition, polydactyly can occur bilaterally – both hands and feet, or it may occur on just one hand or foot and even a combination of both.


			<br>

	== Inheritance ==		== Inheritance ==

	<span style="line-height: 1.5em; font-size: 13.63636302948px;">The probability of inheriting the condition varies as sometimes it appears to be a [[Dominant\|dominant]] [[Trait\|trait with]] a 50% chance of being passed on to the [[Gametes\|gametes]], whereas other times it appears [[Recessive\|recessive]], giving a much lower chance of passing on the gene, depending on the partner’s history. In addition, the way in which the condition is expressed varies, for example, a parent might have an extra finger while their child has an extra toe. However, polydactyly can even occur when there is no family history of it.</span>		<span style="line-height: 1.5em; font-size: 13.63636302948px;">The probability of inheriting the condition varies as sometimes it appears to be a [[Dominant\|dominant]] [[Trait\|trait with]] a 50% chance of being passed on to the [[Gametes\|gametes]], whereas other times it appears [[Recessive\|recessive]], giving a much lower chance of passing on the gene, depending on the partner’s history. In addition, the way in which the condition is expressed varies, for example, a parent might have an extra finger while their child has an extra toe. However, polydactyly can even occur when there is no family history of it.</span>

	~~== Causes ==~~

	Polydactyly occurs when the body follows a different set of directions than usual during the formation of the hands or feet in [[development\|development]], however researchers are still learning about the genes that cause the extra digit to form.		== Causes ==

	~~The trait may be passed down in families as an isolated, [[benign\|benign ]]condition, like having~~ a ~~[[hitchhiker's thumb\|hitchhiker's thumb ]]~~or ~~being~~ [[~~double jointed~~\|~~double jointed~~]], ~~which is considered a [[non-syndromic anomaly\|non-syndromic anomaly]], otherwise,~~ the ~~[[trait\|trait]] may exist as part of a syndrome, which is a group of several recognizable clinical features~~ that ~~often occur together<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>~~.		Polydactyly occurs when the body follows a different set of directions than usual during the formation of the hands or feet in [[Development\|development]], however researchers are still learning about the genes that cause the extra digit to form.

	~~Some syndromes that might present with polydactyly include~~ [[~~Asphyxiating thoracic dystrophy~~\|~~Asphyxiating thoracic dystrophy~~]], [[~~Carpenter Syndrome~~\|~~Carpenter syndrome~~]], [[~~Familial polydactyly~~\|~~Familial polydactyl~~]]~~y and~~ [[~~Trisomy_13~~\|~~Trisomy 13~~<ref>~~Nlm.nih~~.gov, (~~2014~~). Polydactyly: ~~MedlinePlus Medical Encyclopedia~~. [online] Available at: http://www.~~nlm.nih~~.gov/~~medlineplus/ency/article/003176.htm~~ [Accessed 27 Nov. 2014].</ref>]].		The trait may be passed down in families as an isolated, [[Benign\|benign condition]], like having a [[Hitchhiker's thumb\|hitchhiker's thumb or]] being [[Double jointed\|double jointed]], which is considered a [[Non-syndromic anomaly\|non-syndromic anomaly]], otherwise, the [[Trait\|trait]] may exist as part of a syndrome, which is a group of several recognizable clinical features that often occur together<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>.

			Some syndromes that might present with polydactyly include [[Asphyxiating thoracic dystrophy\|Asphyxiating thoracic dystrophy]], [[Carpenter Syndrome\|Carpenter syndrome]], [[Familial polydactyly\|Familial polydactyly]] and [[Trisomy_13\|Trisomy 13]] <ref>Nlm.nih.gov, (2014). Polydactyly: MedlinePlus Medical Encyclopedia. [online] Available at: http://www.nlm.nih.gov/medlineplus/ency/article/003176.htm [Accessed 27 Nov. 2014].</ref>.

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	== References<br> ==		== References<br> ==

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	<references />		<references />

	<references />		<references />

	<references />		<references />

140576638 at 19:42, 27 November 2014

2014-11-27T19:42:38Z

← Older revision		Revision as of 19:42, 27 November 2014
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	== Inheritance ==		== Inheritance ==

	<span style="line-height: 1.5em; font-size: 13.63636302948px;">The probability of inheriting the condition varies as sometimes it appears to be a [[Dominant\|dominant]] [[trait\|trait ]]with a 50% chance of being passed on to the [[Gametes\|gametes]], whereas other times it appears [[Recessive\|recessive]], giving a much lower chance of passing on the gene, depending on the partner’s history. In addition, the way in which the condition is expressed varies, for example, a parent might have an extra finger while their child has an extra toe. However, polydactyly can even occur when there is no family history of it.</span>


			<span style="line-height: 1.5em; font-size: 13.63636302948px;">The probability of inheriting the condition varies as sometimes it appears to be a [[Dominant\|dominant]] [[Trait\|trait with]] a 50% chance of being passed on to the [[Gametes\|gametes]], whereas other times it appears [[Recessive\|recessive]], giving a much lower chance of passing on the gene, depending on the partner’s history. In addition, the way in which the condition is expressed varies, for example, a parent might have an extra finger while their child has an extra toe. However, polydactyly can even occur when there is no family history of it.</span>

	== Causes ==		== Causes ==

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2014-11-27T19:41:35Z

Created page with "Polydactyly is a medical term used to describe extra fingers on the hands or toes on the feet<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available a..."

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Polydactyly is a medical term used to describe extra fingers on the hands or toes on the feet<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>. They are a [[congenital anomaly|congenital anomaly]] as they are present at birth. The extras fingers and toes may vary in size as some are fully formed and functionally and others just small, non-functional nubs. Moreover, extra digits found adjacent to the thumb or big toes are known as [[pre-axial digits|pre-axial digits]], while the ones located centrally in the hand or foot are known as [[post-axial digits|post-axial digits<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>]]. In addition, polydactyly can occur bilaterally – both hands and feet, or it may occur on just one hand or foot and even a combination of both.

== Inheritance ==

<span style="line-height: 1.5em; font-size: 13.63636302948px;">The probability of inheriting the condition varies as sometimes it appears to be a [[Dominant|dominant]] [[trait|trait ]]with a 50% chance of being passed on to the [[Gametes|gametes]], whereas other times it appears [[Recessive|recessive]], giving a much lower chance of passing on the gene, depending on the partner’s history. In addition, the way in which the condition is expressed varies, for example, a parent might have an extra finger while their child has an extra toe. However, polydactyly can even occur when there is no family history of it.</span>

== Causes ==

Polydactyly occurs when the body follows a different set of directions than usual during the formation of the hands or feet in [[development|development]], however researchers are still learning about the genes that cause the extra digit to form.

The trait may be passed down in families as an isolated, [[benign|benign ]]condition, like having a [[hitchhiker's thumb|hitchhiker's thumb ]]or being [[double jointed|double jointed]], which is considered a [[non-syndromic anomaly|non-syndromic anomaly]], otherwise, the [[trait|trait]] may exist as part of a syndrome, which is a group of several recognizable clinical features that often occur together<ref>Genome.gov, (2012). Polydactyly Study: General Information. [online] Available at: http://www.genome.gov/27529688 [Accessed 27 Nov. 2014].</ref>.

Some syndromes that might present with polydactyly include [[Asphyxiating thoracic dystrophy|Asphyxiating thoracic dystrophy]], [[Carpenter Syndrome|Carpenter syndrome]], [[Familial polydactyly|Familial polydactyl]]y and [[Trisomy_13|Trisomy 13<ref>Nlm.nih.gov, (2014). Polydactyly: MedlinePlus Medical Encyclopedia. [online] Available at: http://www.nlm.nih.gov/medlineplus/ency/article/003176.htm [Accessed 27 Nov. 2014].</ref>]].

== References<br> ==

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