Ad
related to: hair follicle vs shaft part of kidney
Search results
Results From The WOW.Com Content Network
A cross-section of the hair shaft from affected individuals reveals a kidney bean, triangular, or oval diameter, unlike the circular shaft shape displayed in straight hair. This irregularity in the diameter of the hair shaft prevents the hair from lying neatly against adjacent hair fibers. Trichohyalin (TCHH) is a structural protein responsible ...
There are many structures that make up the hair follicle. Anatomically, the triad of hair follicle, sebaceous gland and arrector pili muscle make up the pilosebaceous unit. [1] A hair follicle consists of : The papilla is a large structure at the base of the hair follicle. [4] The papilla is made up mainly of connective tissue and a capillary ...
Papules in perforating folliculitis are usually localized to areas of the extremities that bear hair. Lesions are often asymptomatic, though pruritus is a notable characteristic, particularly in those with impaired kidney function. Lesions can last for months or years, waxing and waning.
The outer root sheath or external root sheath of the hair follicle encloses the inner root sheath and hair shaft. [1] It is continuous with the basal layer of the interfollicular epidermis (skin) . See also
The inner root sheath or internal root sheath of the hair follicle is located between the outer root sheath and the hair shaft. [1] It is made of three layers: Henle's layer, Huxley's layer, and the cuticle. [2] The inner root sheaf serves to protect growing hair. [3]
the hair shaft, which is the hard filamentous part that extends above the skin surface. It is made of multi-layered keratinized (dead) flat cells whose rope-like filaments provide structure and strength to it. The protein called keratin makes up most of its volume. A cross section of the hair shaft may be divided roughly into three zones.
Birt–Hogg–Dubé syndrome affects the skin and increases the risk of tumors in the kidneys and lungs. The condition is characterized by multiple noncancerous, dome-shaped tumors of the hair follicles (fibrofolliculomas), particularly on the face, neck, and more rarely, the upper chest. [2]
Pili bifurcati is defined by uneven bifurcation of the hair shaft. [3] Every bifurcation forms two distinct parallel branches that eventually unite to form a single shaft. Each branch of the subsequent bifurcations is entirely encased in its own cuticle.