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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 Histological Study of Horse Skin

February 2023 in “Mağallaẗ Tikrīt li-l-ʻulūm al-ṣirfaẗ/Tikrit journal of pure science”

Horse skin has a layered epidermis, a dermis with hair follicles, sweat and sebaceous glands, and is supplied by small arteries.

research A Systematic Review on the Lipid Composition of Human Hair

8 citations , February 2022 in “International Journal of Dermatology”

Lipids are crucial for healthy hair, protecting it from damage and breakage.

research Ultrastructural Localization of Hair Keratins, High Sulfur Keratin-Associated Proteins and Sulfhydryl Oxidase in Human Hair

9 citations , February 2016 in “Anatomical Science International”

Hair proteins change location and structure as hair cells mature.

research Element Profiles of Mouse Hair: A Concern for Using Hair as a Timetable Repository

July 1993 in “Journal of Radioanalytical and Nuclear Chemistry”

Mouse hair element patterns vary, making it unreliable for tracking time.

research Cosmetic Assessment of Human Hair by Confocal Microscopy

25 citations , March 2002 in “Scanning”

Confocal microscopy is better than scanning electron microscopy for studying hair in its natural state and understanding hair products' effects.

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