The skin has two types of adult stem cells: epidermal and hair follicle. Their jobs seem well-defined: maintaining the skin, ...

Typical are so-called hair tufts, where multiple hair shafts emerge from one dilated follicle opening. This is caused by fibrosis of adjacent follicular units and retention of telogen hairs within ...

In a hair pluck, a group of 50-100 hairs is pulled out and fixed on a slide before examination (Figure 2). Under physiologic conditions, the hair is shed in telogen, the resting stage of the follicle.

We have two types of hair, says dermatologist Elizabeth Houshmand. Vellus hairs, or “peach fuzz,” cover virtually our entire body but aren’t easy to see. Our head, chest, armpit, and pubic ...

Each hair follicle ... About 10% to 15% of the hairs on your body are in this resting phase at any one time, which typically lasts for a few months. 4. Exogen Stage.

These crisscrossed rods are individual hairs taken from the heads of two different people. Despite the striking color difference, the hairs have the same basic structure. Learn more. 1. 2. Hide ...

Mice with mutations in the downless (dl) gene have defects in hair follicle induction, ... foot and tail cDNA library with cDS446 identified two positive clones, one of which was fully sequenced.

The hair growth cycle consists of three main phases—anagen, catagen, and telogen—and each follicle on your head could be going through any one of these at any given time.