Cosmo Quiz- Structure of hair

Created by renn1095 

Upgrade to
remove ads

26 terms

Hair root

the part of the hair contained within the follicle, below the surface of the scalp

Hair shaft

the portion of the hair that projects beyond the skin

Keratin

Main protein in hair

Follicle

tube like depression or pocket in the skin or scalp that contain the hair root

Hair bulb

lowest part of a hair strand, the thickened club shaped structure that forms the lower part of the hair root

Papilla

structure within follicle which is a small projection at bulb; provides blood supply

Arrector Pili

a smooth muscle attached to hair follicles that causes "goose bumps" to appear on the skin when contracted

Sebaceous Glands

oil glands in the skin that produce sebum

Cuticle

outermost layer of hair

Cortex

Middle layer of the hair, afibrous protein core formed by elongated cells containing melanin pigment

Medulla

innermost layer of the hair and is often called the pith or core of the hair

Melanin

Pigment

Albino

a person or organism lacking pigmentation, resulting in abnormally pale or white skin or lack of color

Terminal Hair

long hair found on the scalp as well as on legs, arms, and body of both males and females

Vellus hair

type of hair that is short, fine, soft, & nonpigmented; covers the body

Anagen

growth phase in the hair cycle in which a new hair shaft is created

Catagen

the brief transition period between the growth and resting phases of a hair follicle

Telogen

resting phase , the final phase in the hair cycle that lasts until the fully grown hair is shed

Alopecia

hair loss

Alopecia Areata

an autoimmune disorder that attacks the hair follicles, causing well-defined bald areas on the scalp or elsewhere on the body

Androgenetic Alopecia

most common form of alopecia, a combination of heredity, hormones and age that causes progressive shrinking or miniaturization of certain scalp follicles, also called male pattern baldness

Traumatic Alopecia

Loss of hair from pulling and yanking or by other traumatic means.

Postpartum Alopecia

temporary hair loss experienced at the conclusion of a pregnancy

Canities

technical term for gray hair; results from the loss of the hair's natural melanin pigment

Hypertrichosis or hirsuties

abnormal hair growth

Tricoptilosis

Split ends

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

NEW! Voice Recording

Click the mic to start.

Create Set