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Related Concept Videos

Accessory Structures of the Skin: Hair and Hair Follicles01:16

Accessory Structures of the Skin: Hair and Hair Follicles

Hair and hair follicles are integral components of the integumentary system. Hair is a filamentous structure composed mainly of a protein called keratin. It is found on the surface of the skin throughout the body, except for areas such as the palms of the hands and soles of the feet.
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair strands originate at the epidermal penetration called the hair follicle. The hair shaft is the part...
Accessory Structures of the Skin: Hair Growth and Types01:20

Accessory Structures of the Skin: Hair Growth and Types

Hair growth begins with the production of keratinocytes by the basal cells of the hair bulb. As new cells are deposited at the hair bulb, the hair shaft is pushed through the follicle toward the surface. Keratinization is completed as the cells are pushed to the skin surface to form the shaft of hair that is externally visible. The external hair is completely dead and composed entirely of keratin. Hair can be cut or shaven without damaging the hair structure because the cut is superficial. Most...
Reticular Dermis01:15

Reticular Dermis

The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
Assessment of Airway, Skin Color, and Use of Accessory Muscles01:30

Assessment of Airway, Skin Color, and Use of Accessory Muscles

A thorough assessment of respiratory health is paramount in clinical settings to identify and manage respiratory distress and ensure adequate oxygenation. This article elaborates on the critical aspects of respiratory evaluation, including airway assessment, skin color examination, and the observation of accessory muscle use, which are integral to effectively diagnosing and managing patients with respiratory conditions.
Introduction
The initial evaluation of a patient's respiratory system...
Healing II: Complications01:24

Healing II: Complications

Complications during healing arise when tissue repair is altered by local or systemic factors. These changes involve abnormal collagen deposition, altered biomechanics, and reduced vascular supply, impairing restoration of normal structure and function.Loss of FunctionScar tissue differs significantly from the original tissue it replaces. In the skin, fibrosis lacks adnexal structures such as hair follicles, sebaceous glands, and sweat glands. Their absence reduces tactile sensitivity, impairs...
Skin Cancer01:30

Skin Cancer

Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...

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Related Experiment Video

Updated: May 19, 2026

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
06:41

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis

Published on: March 9, 2015

Wigs and hairpieces: evaluating dermatologic issues.

Nusrat Banka1, M J Kristine Bunagan, Yvonne Dubrule

  • 1Department of Dermatology, University of British Columbia, Vancouver, British Columbia, Canada.

Dermatologic Therapy
|August 24, 2012
PubMed
Summary

Hair loss significantly impacts psychological well-being, yet therapeutic options remain limited. Professionals must address the social significance of hair and provide information to mitigate hair loss distress.

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Area of Science:

  • Dermatology and Psychology

Background:

  • Hair is crucial for self-image and social interaction.
  • Hair loss, or alopecia, can cause significant psychological distress.
  • Despite research, therapeutic options for extensive hair loss are limited.

Purpose of the Study:

  • To highlight the psychological impact of hair loss.
  • To emphasize the need for understanding the social significance of hair.
  • To advocate for improved patient information regarding alopecia.

Main Methods:

  • Literature review on hair disorders and psychological impact.
  • Analysis of the social and psychological consequences of alopecia.
  • Discussion of current therapeutic limitations.

Main Results:

  • Extensive research has not yielded major breakthroughs in hair loss treatments.
  • Alopecia profoundly affects patients' psychological well-being and social interactions.
  • Current therapeutic strategies offer limited solutions for widespread hair loss.

Conclusions:

  • Understanding the social significance of hair is vital for healthcare professionals.
  • Minimizing psychological distress requires providing up-to-date information on alopecia.
  • Further advancements in therapeutic options for hair loss are urgently needed.