Straight hair is a result of hair shafts that are?
There are many misconceptions about the nature of hair and the genetic factors that influence its appearance. One such common belief is that straight hair is due to a specific gene or set of genes governing hair texture. However, contrary to popular opinion, straight hair can be seen in individuals from different ethnic backgrounds and cultures alike.
The Anatomy of Hair
Hair is made up mostly of keratin- a protein also found in nails and skin. All types and textures of human hair share some similarities in their structure: they all contain three layers, which are the cuticle, cortex, and medulla.
The Cuticle Layer
The cuticle layer forms an outer protective barrier around each individual strand of hair shafts. It’s composed mainly out the dead cells you see as your hairs’ exterior layout on top one another like roof shingles.
The Cortex Layer
The strength or elasticity quality depends on this middle layer called cortical; it gives definition to curls patterns or so-called texture variation
Medulla Layers (when present) & Additional Shaft Strucuture Variations
Medullas occupy the core hollow space running through our hairs while additional variations across ethnicity groups happen too – examples include flatter-shaped cross-sections for Africans compared with elliptical ones for Asians (lending themselves better towards smoothness)
With #amount# distinct variations being identified by researcher Blumenberg [source], understanding how grooming techniques might differ regarding various distinctions point toward these scientific perspectives!
You may think #something unexpected related to way people fixate different hairstyles##
What makes them appear differently despite having universally similar foundations?
Note- this will explore an aspect in-depth after having understood basic anatomy categorically.
A Curly vs A Straight Hair Follicle:
Hair texture comes from two sources primarily –
1.Two Layers Meet at An Angle
A cylindrical hair shaft emerges from the scalp, surrounded by a “tough sheath” known as the follicle. When viewed under magnification, these have two layers – one that’s straight and another curved.
2.The Angle Difference Matters
Together with varying diameter measurements in people of different hair textures [so-called ethnicities], this angle differential is what causes hair to adopt its distinct shape or lay flat for thinner variations.
To be specific- an obtuse angle (relatively large) = wavier curls; while acute angles lead to tighter spirals mainly associated with African-Americans
An almost a right-angle further leads to coils referred likewise & some people experience Combinations!
However, all these characteristics don’t universally dictate whether their attributed to ethnicity but rather in part genes related ‘ethnicity.’
Indeed! There’s no doubt that where we originate genetically carries potential guidance responsible for our final look – traits are in us albeit not necessarily clear from phenotype only considering face-value ;), just like #something unexpected about typical honey-bee behavior# ¡Sometimes less can sometimes indicate much more than you think possible¿
Genetics and Straight Hair
It’s a common belief among many individuals that genetics is solely responsible for determining hair texture. However, research has shown that there is more at play when it comes to straight hair other than just inheritance-based factors. Both genetic composition + external influences factor into forming smoothness attributes (despite prevailing standards often enticing cliched norms surrounding particular heritages).
Genes Unique Only in Humans?
Like most human attributes including brain function & size, straight textured varieties aren’t unique amongst primates! Genetically speaking though data suggests the absence of strongly linked clusters between genome region variation concerning curliness or straightness specifically (instead distributed throughout widely)
There are hundreds they call SNPs scattered on unequal scales making it particularly hard without singling out any significant locations controlling them entirely.
Despite this, the following genes have been found to be associated with differences in hair texture:
FGFR2 (Fibroblast Growth Factor Receptor 2)- Located on chromosome 10
It plays a vital role within cellular communication pathways thanks to encoding transmembrane glycoprotein receptor proteins. Its presence affects hair length and shape corresponding directly towards keratin production improving integrity over time.
PADI3 (Peptidylarginine Deiminase Isozyme 3) – Location: Chromosome 1q36
An enzyme playfully known as “the hairstylist gene” since it impacts protein crosslinking [chemically bonding] within cells for important structural reasons relating mostly back towards exterior layouts forming here.
Additionally, variations regarding wavy/curly/coiled among other shared human characteristics might manifest themselves epigenetically induced via diet or environmental factors like # something relatable but funny #
Is straight hair related only after taking genetics into account?
Other Influential Factors
While genetics may play a significant role in determining an individual’s hair type, there are several external factors that can also influence how their locks appear- cuticle loss or erosion from harsh treatments make hairs more prone toward breaking limiting growth potential en route involving enhanced fragility ¡not the end goal typically desired!
Chemical Treatments – Straighteners:
Straightening has enjoyed popularity for many years mainly managing through synthetic substances often formaldehyde-based chemicals; Keratin-based smoothing treatments+ similar re-bonding straighteners entailing specific heat application techniques remain viable options at affordable prices yet currently popular influencer fads push on natural looks which encourages wholesome health overall e.g., pre-wash detangling masks etc.. (but we’ve digressed 😉)
Do note however unwanted side effects synonymous 💔️with relaxing include severe irritation 😠 of our scalp leading sometimes⚠️to sores – all due to the harsh chemical back-up used here.
Heat Styling Tools
Straightening or curling irons offered in many a shape + size can cause damage in proportion to their design quality/ strength usage frequency; & leave us with split ends, eventually! ¡No thanks 🙁
Another chief factor contributing towards variations types could be indirectly related but infectious agents – smallpox incidence particularly associated with Wavy-haired people [cite: wikipedia]
To conclude, straight hair has been made possible not just through genetics alone (whether multi-factorial or singular) but inherited traits along with external influencing factors combining into what you wear now! So next time someone compliments your locks being sleek and shiny, feel lucky that science+care brought them that way fingers crossed.
|This is centered text|
|Type 1 Straight Hair||Dull|
|Type 2 Wavy Hair||Flexible|
|Type 3 Curly Hair||Bouncy|
|Type 4 Coily/Curly-Kinky||Fragile|
Unsure about the name of different hairstyles? Seek advice.