Structure of Hair

Hello!
In this video, I explain
Structure of hair
(hair structure)
Hair is a simple structure that is made up of protein filaments called Keratin.
Hair acts as a barrier to foreign particles.
It's an important part of the appearance and creates gender identity.

Human hair is divided into two parts
1. Hair root -located below the epidermis
2. Hair shaft- located above the epidermis

Structures of the Hair Root
Hair follicle (1:23) - tube-like depression or pocket in the skin or scalp that contains the hair root
Hair bulb- the lowest part of a strand of hair; thickened, club-shaped
Dermal papilla (2:27) - small, cone-shaped elevation located at the base of the hair follicle that fits into the hair bulb
Arrector pili muscle (3:54) - small, involuntary muscle in the base of the hair follicle; when it contracts, we get goosebumps
Sebaceous glands (4:28) - oil glands in the skin that are connected to the hair follicles; secretes sebum (fatty, oily substance)

Structures of the Hair Shaft
Hair Layers
Cuticle (4:48)- the outermost layer of hair; consists of a single, overlapping layer of transparent, scale-like cells; protects the inner structure of hair; creates shine and smoothness
Cortex (5:30)- middle layer of the hair; 90% of total hair weight comes from the Cortex; elasticity and color are the results of protein in the cortex
Medulla (5:52)- the innermost layer of hair; generally only thick, coarse hair contains a medulla; has no known purpose.
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0:00​ - Introduction
0:53​ - Parts of hair
1:20​ - Hair Root
4:49​ - Hair shaft (layers of hair)
6:17 - Like share SUBSCRIBE
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#hair #hairstructure

[hansikas]

The hair on my head started falling out significantly following an extremely stressful time in my life. Consequently, I researched the internet and decided to test a hair oil called litttleextra coocoonion & neem wood comb. The results definitely made a difference. At present, I have lengthy, dense, dark hair which has reached my waist and trimmed on three occasions since I started. Easy & good. Also, just as good can be massaging the scalp - it encourages the growth. You only have to do this weekly. Before long, you'll see new hair starting to grow.

[raydawg]

So much better than listening to my teacher I swear. Thank you for the colorful presentation, it really helps me learn better.

[shamasiddiqui]

Sir dermal papilla too syllabus mein kya pure book mein nhi h bina faltu mein maine apne 6 min brbad kiye😂😂

[RajSingh-jzll]

arector pilli muscle sympathetic Postganglionic relase acetylcholine or norepinephrine ?? In Wikipedia it’s showing acetylcholine exception case but on google it’s saying Ik that sympathetic post ganglion release norepinephrine but in arector pilli muscle Wikipedia showing acetylcholine

[tarnjot]

Very nyc sir it's so helpful for me this video and it's very simple and easy explanation.... Well done Thankuu so much create this

[kevinjames]

Your videos are very nice

Can add subtitles, please

[JalwaKhattak]

To much helpful video thanks you sir and JaxakAllah

[soumyavlogs]

Thanks for giving the deep knowledge of hairs ...it is soo important for me sir

[dawitkebede]

I would like to 🙏. Short and clear highlight. Keep doing on others 👍

[barbaramatthews]

Thank you for sharing. I'm studying to take the cosmetology exam. Knowing about hair is important. You make it easy to understand.

[shahnasherin]

One correction : hair is not an indicater of gender.

[rialadensitae]

Very nice presentation.. Sir.. Thank u... Sooo much