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GlossaryMedulla

innermost layer of a hair strand, often spongy

The medulla is the innermost layer of a hair strand, often composed of soft, spongy cells. While its presence and structure can vary among different hair types and species, it generally plays a role in the hair's overall strength and flexibility.

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research Age-Associated Thin Hair Displays Molecular, Structural, and Mechanical Characteristic Changes

2 citations, October 2022 in “Journal of structural biology”

Older thin hair is not just thinner but also has different shape, structure, and stiffness.

research ABO Blood Grouping of Non-Medullated Scalp Hair Using Immunohistochemical Staining

January 2010 in “Nihon Hou Kagaku Gijutsu Gakkaishi”

The modified staining method can determine the ABO blood group of hair samples accurately.

research The Keratins of the Human Beard Hair Medulla: The Riddle in the Middle

87 citations, July 2009 in “The journal of investigative dermatology/Journal of investigative dermatology”

Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.

research Inductive Properties of Hair Follicle Cells

68 citations, December 1991 in “Annals of the New York Academy of Sciences”

Hair growth can be induced by certain cells found at the base of hair follicles, and these cells may also influence hair development and regeneration.

research Hair Loss in Children

30 citations, August 1983 in “Pediatric Clinics of North America”

Most hair loss in children is caused by a few common conditions, and it's important to diagnose these properly and support the child's mental health.

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