THE ANATOMY OF THE HUMAN BODY

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f three phases: anagen (growth phase), catagen (transitional phase), and teloge

skin from which hair grows. Each follicle contains a hair shaft and associa

air shaft. Two main types of melanin contribute to hair color: eumelanin (dark pigments) and pheomelanin

which can be straight, wavy, or curly. The amount of curl is influenced by th

m heat and environmental damage, can help maintain healthy-looking hair. It's important to us

irs lost daily. However, excessive hair shedding or thinning can be attributed to factors

icle is the outermost layer, consisting of overlapping scales that protect the inner layers. The cortex provi

luenced by factors like age, genetics, overall health, and hormonal fluctua

n. However, prolonged exposure to the sun can cause damage to the hair shaft, fade hair color, and dry out

d keratin, which gives it strength and flexibility. Keratin is prod

among different ethnicities and populations. For example, people of African descent often ha

to protection from UV radiation, heat regulation, and providing a sensory function. Over time, as human

be styled in various ways for personal expression. Taking care of our hair

deeper into some of the

th and Li

follicles, each capable of producing a strand of hair. Hai

ring this phase, the cells in the hair matrix at the base of the follicle divide rapidly

this time, hair growth slows down, and the follicle shrinks. The hair detaches from

nths. The hair follicle remains dormant while a new hair starts growing beneath it

r and Pig

of the hair follicle, produce two types of melanin: eumelanin (dark pigment) and pheomelanin (light pigment). The combination and co

loss of pigment and the appearance of gray or white hair. The geneti

cture and

e shape of the hair follicle ultimately determines the growth pattern of the hair. For example, a circular f

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nditioning the hair provides moisture and nourishment, keeping it soft and manageable. Different hair types may require specific care

s, and rough handling can help prevent damage, breakage, and split ends. Trimming

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vitamin A, B, C, D, and E), minerals (zinc, iron, selenium), and proteins helps maintain healthy hair growth. Dehydration, m

gmentation to its structure and texture. Understanding these aspects can help individual

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around 2,200 hair strands per square inch (or 1 square centimeter) of scalp. However, this can vary significantl

ot always identifiable. The middle layer is the cortex, which makes up most of the hair's bulk and contains keratin proteins responsible for strength and

month or 6 inches (15 centimeters) per year. However, this rate can vary among individuals

le. Excessive hair loss or thinning can be caused by various factors, including genetics, hormonal imbalances, nut

nd thick, while African hair tends to be coiled and tightly curled. The classification system developed by hairstylist Andre Walker categoriz

eep conditioning, oiling, and using various styling products like mousses, gels, serums, and heat protectants. Styling techniques differ significantly, including

eople often use hairstyles, colors, and cuts as a form of self-expression, cultural identification, or fashion statement. Hair has play

hair, showcasing its intricacies and the signific