Αποτελέσματα Αναζήτησης
See if you can identify the epidermis, Arrector pili muscle, sebaceous gland, internal and external root sheaths, hair matrix, and hair bulb, connective tissue sheath, glassy basement membrane and the hard keratin of the hair.
- Epidermis
Layers in the Epidermis. This diagram shows schematically,...
- Skin
The Dermis and Hypodermis. The dermis is a connective tissue...
- Pigmentation
Overall skin colour depends on: Carotene pigments in...
- Nails
Nails. The distal end of each digit is protected by a strong...
- Epithelial Glands
This diagram shows the main features of a hair, and its...
- Epidermis
3 Αυγ 2023 · The mass of cells from which the hair shaft is produced is referred to as the hair matrix. When a hair is actually growing, epithelial cells around the dermal papilla multiply. This then forms 4 inner layers of the hair follicle.
1 Μαΐ 2023 · Matrix cells act as germ cells that function to grow the hair follicle, and subsequently, hair. As matrix cells continue to proliferate, the hair follicle and hair will grow longer. This process defines the hair cycle, which further categorizes anagen, catagen, and telogen phases.
When the APM contracts, it erects the hair and promotes secretion from associated sebaceous gland (SG). The hair follicle is divided into four regions from top to bottom: infundibulum, isthmus, suprabulbar region, and the bulb.
1 Ιαν 2016 · There are two follicle matrix areas: the hair bulb, with matrix cells around the dermal papilla, and the bulge matrix cells in the lower part of this structure. Follicular cycles are initiated by the “activation of the cells of the bulge.”
22 Ιουν 2024 · The matrix is where matrix keratinocytes proliferate to form the hair shaft. Mixed among the matrix cells, melanocytes provide the hair shaft with color. The hair shaft consists of an inner core—the medulla—surrounded by the cortex, which makes up the bulk of the hair (see Image .
1 Ιαν 2016 · HF cycle stages were evaluated based on the following histological characteristics (Supplementary Table S1): (i) size and shape of the dermal papilla (DP) and hair matrix, (ii) epithelial outer root sheath (ORS) morphology, (iii) connective tissue sheath (CTS) and vitreous membrane morphology, (iv) hair shaft characteristics, such as length and ...
