HAIR FOLLICLES
\hˈe͡ə fˈɒlɪkə͡lz], \hˈeə fˈɒlɪkəlz], \h_ˈeə f_ˈɒ_l_ɪ_k_əl_z]\
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A tube-like invagination of the epidermis from which the hair shaft develops and into which the sebaceous glands open. The hair follicle is lined by a cellular inner and outer root sheath of epidermal origin and is invested with a fibrous sheath derived from the dermis. Its anatomical designation is folliculus pili. (From Stedman, 25th ed)
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Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.