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the sudden falling out of hair in round patches or baldness in spots; may occur on the scalp an elsewhere on the body
male pattern baldness; hair loss charactersized by the miniaturization of terminal hair
minute, involuntary muscle fiber in the skin inserted in the base of the hair follicle
inflammation of the subcutaneous tissue caused by staphylococci; similar to a furuncle but more extensive
the five elements that make up human hair, (carbon, oxygen, hydrogen, nitrogen, and sulfur)
middle layer of the hair; a fibrous protein core formed by elongated cells, containing melanin pigment
outermost layer of the hair, consisting of a single, overlapping layer of transparent , scale like cells
small, cone shaped elevation located at the base of the hair folliclethat fits into the hair bulb
chemical side bond that joins the sulfer atoms of two neighboring cysteine amion acids to create cystine
lowest area or part of a hair strand; the thickened, club shaped structure that forms the lower part of the hair root
the ability of the hair to stretch and return to its original length without braking
hair flowing in the same direction; the result of follocles sloping in the same direction
condition of abnormal growth of hair; characterized by the growth of terminal hair in areas of the body that normally grow only vellus hair also called hirsuties
the process of being kertinazied; as newly formed cells in the hair mature, they fill up with kertain, move upward, lose their nucleus, and die; the hair shaft is a nonliving fiber composed of kertinized protein
innermost layer of the hair, sometimes referred to as the pith; composed of round cells; often absent in fine hair
dandruff; and inflammation of the skin characterized by the formation and flaking of fine, thin scales
pityriasis capitis simplex
technical term for scalp inflammation marked by dry dandruff, thin scales and an itchy scalp
variety of canities; characterized by alternating bands of gray and pigmented hair throughout the length of the hair strand
resting phase; the final phase in the hair cycle that lasts until the fully grown hair is shed
the long, soft hair found on the scalp, also on legs, arms, adn body of both male and females
ringworm caracterized by dry, sulfur yellow cup like crusts on the scalp, called scutula; also known as tinea favus or honeycomb ringworm
knotted hair, characterized by brittleness and the formation of nodular swellings along the hair shaft
vellus or lanugo
short downy hair that appears of the body, with the exception of the palms of the hands and the soles of the feet
amount of movement in the hair strand; described as straight, wavy curly and extremely curly
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