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Lips

Lips

Aside from the lips of the mouth, there are two pairs of lips at the entrance to the vagina. They are the labia majora (the larger outside pair) and the labia minora (the smaller inside pair). Together they form part of the vulva (the female external genitalia).


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Re: Why do Africans have large noses and lips?

I did a short experiment with some Afro Caribbean friends, the first test was for 3 participants to pinch their noses slightly to create slightly narrow nostrils, the other 3 participants were the control and did not have to do anything. The IV was pinching nostrils, the DV was the type of sound tha...

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by shannat
Mon Jul 28, 2014 12:52 am
 
Forum: Human Biology
Topic: Why do Africans have large noses and lips?
Replies: 31
Views: 210664

Re: Why do Africans have large noses and lips?

I don't know the answer to this specific question, but we do know some things about how genes are linked on DNA. Sometimes a trait that is helpful for survival is very closely associated with another trait on the DNA strand. So when natural selection keeps trait A in the gene pool as advantageous, t...

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by anneland
Sun Mar 09, 2014 6:54 pm
 
Forum: Human Biology
Topic: Why do Africans have large noses and lips?
Replies: 31
Views: 210664

UV Effect on cell pigmentation (melanocytes)

... ie 4 and above, is pigmentation purely based on time exposure to sunlight if the UV level is 10+. And would this be the same for pigment in the lips/mucous skin tissue? Many Thanks

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by John3373
Wed Feb 20, 2013 1:41 pm
 
Forum: Cell Biology
Topic: UV Effect on cell pigmentation (melanocytes)
Replies: 1
Views: 1796

Re: Why do Africans have large noses and lips?

The title of this topic is just down right, sad. Amazing the title could not have read "why do some ethnicities have larger noses and lips, then others?" News Flash, every ethnicity has a share of large noses and lips it simply depends on the genes that run within that family line. ...

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by dillonkd
Sun Jan 13, 2013 11:14 pm
 
Forum: Human Biology
Topic: Why do Africans have large noses and lips?
Replies: 31
Views: 210664

Re: Why do Africans have large noses and lips?

... air they breathe. And the size of the nostrils in colder places (in the north) got smaller to ensure air wormup before delivering to the lungs. Lips may have something related to nostrils. But also its possible that lips are usefull for eating. coz in animlas well developed lips are common in ...

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by Jai2sriram
Sat Jan 05, 2013 3:01 pm
 
Forum: Human Biology
Topic: Why do Africans have large noses and lips?
Replies: 31
Views: 210664
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