| 词条 | Root sheath |
| 释义 |
| Name = Root sheath | Latin = | Image = Gray945.png | Caption = Transverse section of hair follicle. | Image2 = | Caption2 = | Precursor = | System = | Artery = | Vein = | Nerve = | Lymph = }} The inner or epidermic coat of the hair follicle is closely adherent to the root of the hair, and consists of two strata named respectively the outer and inner root sheaths. Outer Root SheathThe outer root sheath corresponds with the stratum mucosum (Stratum germinativum and Stratum Spinosum)[1] of the epidermis, and resembles it in the rounded form and soft character of its cells; at the bottom of the hair follicle these cells become continuous with those of the root of the hair. Inner Root SheathThe inner root sheath consists of
The term "trichilemmal" refers to the outer root sheath.[2] References1. ^{{Cite web |url=http://education.yahoo.com/reference/gray/subjects/subject/234 |title=The Common Integument - Gray's Anatomy of the Human Body - Yahoo! Education |access-date=2007-12-08 |archive-url=https://web.archive.org/web/20080119234335/http://education.yahoo.com/reference/gray/subjects/subject/234 |archive-date=2008-01-19 |dead-url=yes |df= }} 2. ^trichilemmal: Definition and Much More from Answers.com External links
1 : Hair anatomy |
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