الأحد، 23 أكتوبر، 2011

طابع الحسن

إن ذلك الموضوع من الموضوعات الطريفة التى غابت عن بال كثير من الناس فى مصر و فى العالم العربى أن يبحثوا فيها و يضعوا فيها دراسة شاملة .



طابع الحسن .. للأسف جهلاء الخليج لا يفرقون بين الخال ( الشامة أو الوحمة ) و الحسنة و الغمازة - غمازة الخد - و طابع الحسن فيظنون طابع الحُسْن هو الخال و هذا غير صحيح .. طابع الحسن يمنح صاحبه أو صاحبته وجها جميلا فريدا و نادرا و مميزا ، و يجعل وجه صاحبه أو صاحبته مثل التفاحة


يسمى طابع بالحسن بالإنجليزية عدة أسماء :


cleft chin, chin cleft, butt chin, dimple chin or chin dimple

و هو غمازة على الذقن . و هو عبارة عن صدع أو شق على شكل حرف واى الإنجليزى Y فى الذقن ، نتيجة حالة عظمية كامنة تحتية باطنة فردية فريدة خاصة ، فاللحم و الجلد يتخذ هذا الشكل نتيجة وجود صدع فى عظم الفك السفلى من أسفله ، و هذا الصدع فى عظم الفك السفلى ناتج عن عدم اكتمال الالتحام بين شطرى الفك السفلى الأيمن و الأيسر خلال مراحل النمو الجنينى فى الرحم . حيث يفشل الفك السفلى فى الالتحام الكامل بين شطريه عند نقطة الوسط و المركز .



و هى سمة و خاصية و صفة و أثر وراثى موروث فى البشر و بنى الإنسان ، حيث إن الجين السائد المسبب لظهور طابع الحسن ، بينما الجين المتنحى هو الذى يمنع ظهور طابع الحسن فى الإنسان .


و هى وراثية تماما مثل الغمازة - غمازة الخد - و متفاوتة فى شدتها و عمقها فى الذقن فمثلا كيرك دوجلاس ذو طابع حسن غائر و عميق بينما ابنه مايكل دوجلاس ذو طابع حسن أقل عمق و وضوحا و ظهورا. و قليل من النساء من تمتلك طابع حسن و معظمهن لا يمتلكونه و لكن كثير من الرجال يمتلكونه .


و إذا امتلك أحد الأبوين طابع حسن فقد ينقله لابنه أو قد لا ينقله ، و قد يولد طفل و يمتلك طابع حسن رغم أن أيا من أبويه لا يمتلك طابع حسن . و ذلك تبعا لعوامل بيئية ، قد تعوق انقال هذه الصفة السائدة حتى لو كان كلا الأبوين يمتلك طابع حسن ، و أيضا تبعا لوجود ما يسمى بالجين الملطِف و المخفِف . فمن الممكن أن يمتلك الأبوان ذوا طبع الحسن جين ملطف يعوق و يلغى أثر الجين السائد المسبب لانتقال طابع الحسن للأولاد ، و قد يمتلك الأبوان اللذان لا يملكان طابع حسن جين ملطف يؤدى إلى حدوث التحام للفك فى الأولاد لكن أولادهما لا يمتلكون مثل هذا الجين الملطف مما يجعلهم يمتلكون طوابع حسن رغم ذلك .


و البعض يمتلك طابع حسن بشكل اصطناعى بجراحة التجميل ، على سبيل المثال : مايكل جاكسون .. فلديه طابع حسن اصطناعى بالجراحة و ليس طبيعيا .


و يمتلك المجرمون و الأوغاد ، و كذلك الأبطال و العظماء على حد سواء طوابع حسن . و إن كنتُ أرى أن معظمهم ظرفاء و بسامون .


.. و من مشاهير الفنانين الذين يملكون طابع حسن ( غمازة الذقن ) .. كمال الشناوى و صالح سليم و سهير رمزى و هالة فؤاد و صلاح قابيل و مديحة كامل و هياتم و شويكار و روجينا و حسين فهمى و سلاف فواخرجى و صلاح نظمى و جهاد سعد .. .. و من الأجانب كيرك دوجلاس و روبرت ميتشوم Robert Mitchum و كارى جرانت و صوفيا لورين و ساندرا بولوك و جون ترافولتا.. و من الساسة و الزعماء الرئيس العراقى السابق صدام حسين و الكاتب يوسف إدريس و الكاتبة فى جريدة العربى نور الهدى زكى .. و الموسيقار بيتهوفن و الكاتب الإسبانى لوركا و الرئيس الأمريكى الأسبق جيمس مونرو و الكاتب الفرنسى فولتير و الكاتب الأمريكى دان براون صاحب رواية شفرة دافنشى الشهيرة . و المطرب ريكى مارتن .


و يعد طابع الحسن و كذلك الغمازة ( و حتى الخال أو الشامة ) فى بعض المجتمعات علامة جاذبية و جمال و حلاوة سواء للرجال أو النساء . فيمكنك اعتباره هبة ربانية و هدية رقيقة و لمسة مرهفة من الخالق العظيم و المبدع الجليل الله سبحانه و تعالى .




و هذه مقالات إنجليزية حول هذا الموضوع ترجمت معظمها فيما سبق ذكره أعلاه :



A cleft chin, chin cleft, butt chin, dimple chin or chin dimple is a dimple on the chin. It is a Y-shaped fissure on the chin with an underlying bony peculiarity.[1] The chin fissure follows the fissure in the lower jaw bone resulted from the incomplete fusion of the left and right halves of the jaw during the embryonal and fetal development.[2]


This is an inherited trait in humans, where the dominant gene causes the cleft chin while the recessive genotype presents without a cleft. However, it is also a classic example for variable penetrance[3] with environmental factors or a modifier gene possibly affecting the phenotypical expression of the actual genotype. An example of this is shown by the Family Guy character Peter Griffin.



In the Arab World especially Egypt, they call it " Stamp of Beauty" or "Impress of Charm" طابع الحسن



In humans, cleft chin is a dimple on the chin. Having a cleft chin is a recessive trait, whereas having cheek dimples is a dominant trait. There is a 25% chance that a child will have a cleft chin when the parents are unaffected carriers of the gene.

Like cheek dimples, chin dimples are inheritable and have a varying degree of prominence. For example, while Kirk Douglas has a very conspicuous cleft chin, his son, Michael Douglas has a much less visible cleft chin. The majority of females do not have cleft chins [1].

The groove of the cleft chin is not just skin-deep, but also on the jawbone, as a groove in the vertical midline of symphysis menti and the soft tissue above it. It is probably the result of incomplete fusion between the left and right halves lower jaw during embryologic development.

Experts believe that cleft chins form the same way that cleft lips form. During the embryonic stage, the tissues most likely fail to meet completly, resulting in a separate development and then fusion along the midline. The result of this fusion (in the region of the bony aspect of the lower jaw) is known as the "symphysis menti."

List of people with a cleft chin :



Deceased:


- Ludvig van Beethoven (composer)
- Kurt Cobain (musician)
- Ted Demme (film producer)
- Nick Drake (musician)
- Farinelli (musician)
- Frederick II of Prussia (monarch)
- Federico García Lorca (writer)
- Daniel Hale Williams (physician)
- William Hanna (artist)
- James Weldon Johnson (writer)
- President William McKinley
- Robert Mitchum (actor)
- President James Monroe
- Jackson Pollock (artist)
- President William Howard Taft
- Henry David Thoreau (writer)
- Voltaire (writer)

Living:



Media/Entertainment:


- Ben Affleck (actor)
- Marc Anthony (singer/actor)
- John Barrowman (actor)
- Alexis Bledel (actor)
- Trace Beaulieu
- Charisma Carpenter (model)
- Ernest Borgnine (actor)
- Pierce Brosnan (actor)
- Dan Brown (writer)
- Sandra Bullock (actor)
- Chevy Chase (actor)
- Brian Cox (actor)
- Elisha Cuthbert (actor)
- Dimple Kapadia
- Deepak Chopra (writer)
- Frances Bean Cobain
- Simon Cowell (record producer)
- Timothy Dalton (actor)
- Andy Dick (actor)
- Kirk Douglas (actor)
- Brad Dourif (chin)
- Aaron Eckhart (actor)
- David Furnish (film producer)
- Mark Hamill (actor)
- Jared Harris (actor)
- Dan Hedaya (actor)
- Paul Hogan (actor)
- Michael Jackson (musician) surgically placed on chin
- Jude Law (actor)
- Harry J. Lennix (actor)
- Jerry Lewis (actor)
- Kristanna Loken (actor)
- William H. Macy (actor)
- Constantine Maroulis (musician)
- Ricky Martin (musician)
- Matthew Macfadyen (actor)
- Ian McDiarmid (chin)
- Dr. Phil McGraw (talk show host)
- Vince McMahon (sports announcer)
- Viggo Mortensen (actor)
- Emily Osment (actor)
- Haley Joel Osment (actor)
- Trey Parker (artist)
- Sean Penn (actor)
- David Hyde Pierce (actor)
- Tim Rice-Oxley (musician)
- Henry Rollins (musician)
- Brandon Routh (actor)
- Dan Savage (journalist)
- Jessica Simpson (actor)
- Kevin Spacey (actor)
- Patrick Stewart (actor)
- Eric Stoltz (actor)
- Evan Stone (porn star)
- Peter Stormare (actor)
- John Travolta (actor)
- Ted Turner (entrepreneur)
- Anna Vissi (musician)
- Isaiah Washington (actor)
- Elijah Wood (actor)
- Ace Young (musician)




Politics:


- Puerto Rican Governor Aníbal Acevedo Vilá
- Senator Wayne Allard
- Marion Berry
- John Boozman
- Senator Jim Bunning
- Congressman Dan Burton
- Congressman Dave Camp
- Congressman Nathan Deal
- Congressman Charlie Dent
- Congressman Lane Evans
- Congressman Chaka Fattah
- Congressman Mike Ferguson
- Congressman Kenny Hulshof
- Senator Joseph Lieberman
- Andrés Manuel López Obrador
- Ronnie Musgrove
- Congressman Jerrold Nadler
- New York Governor George Pataki
- Senator Jack Reed
- Governor Ed Rendell
- Supreme Court Chief Justice John Roberts
- Congressman Mike Ross
- Congressman Bart Stupak
- Minnesota Governor Jesse Ventura
- Congressman Curt Weldon




Sports:


- Brian Bosworth
- Terry Bradshaw
- Tom Brady
- Joe Namath
- Barry Orton
- Randy Orton


Cartoon Characters:


- Cleft, the Boy Chin Wonder
- Mr. Turner



****



A cleft chin is also called a dimple in the chin, a chin cleft or even less elegantly termed a butt chin. It is a small to large indentation in the chin that is actually genetically determined and is caused by failure of the lower jawbone to completely fuse together at the center point. This doesn’t cause problems for most people with a cleft chin; it merely causes variance in appearance. You’ll often see that parents with cleft chins tend to produce children with the same marking. Cleft-chinned parents may or may not pass along the trait to their children, and some children will be born with cleft chins to parents without the trait.

The cleft chin is an interesting study and example of how genetics can work, and how inherited genes sometimes fail in expression. Theoretically, parents who both have cleft chins would immediately pass this on to children, since it is a dominant trait. There are two reasons why this might not occur, because genes dictating the cleft can be affected by variable penetrance. Variable penetrance means that even a dominant trait may not be expressed. This may be caused by the environment — something in the fetal environment caused the jawbone to fuse completely. It also may be caused by something called modifier genes, which affect the function of the genes responsible for the cleft chin.

If the modifier genes suppress the gene controlling incomplete fusion of the jawbone, then the cleft would not be expressed. Alternately, two parents without cleft chins may both have had modifier genes, resulting in jawbone fusion. Their children might lack these modifiers and all have clefts despite that fact. The point is, whether or not parents have clefts, children may or may not have them. Variable penetrance can cause a little confusion, but explains why the cleft isn’t always inherited, or may appear among children whose parents don’t have clefts, though this is rare.

Cleft chins have certainly existed for a very long time. Homo sapiens fossilized remains discovered in France in the caves of Isturitz are carbon-dated back tens of thousands of years and show prominent clefts. The cleft chin also predominates in literature.

Villains often have deep clefts, and so do heroes. We also love our current and past actors with cleft chins, such as Cary Grant, Kirk Douglas, Michael Douglas, John Travolta, Jude Law, and Sir Ian McKellen. It should be noted that many of these actors have played both villains and heroes, and the cleft chin seems to be one of those adaptable facial traits that can lend itself to dramatic expression in different ways.

Comments :

My wife and I have been married a long time and have three boys, all grown up now, one of which has a cleft chin and the other two do not. Neither my wife nor myself have cleft chin and as far as we know none of hers nor my siblings have a cleft chin.



Is this possible and if so what are the chances of this happening?




Sources :



- http://en.wikipedia.org/wiki/Cleft_chin



- https://scorpio.cs.usfca.edu/wiki/index.php/Cleft_chin



- http://www.wisegeek.com/what-is-a-cleft-chin.htm