Liz is a medical writer and illustrator with an MSc in Medical Art and a BA in Medical Illustration focusing on pre-medical sciences. She has worked with healthcare professionals and educators globally creating anatomically accurate learning materials.
Human Hair
In humans, hair helps with heat regulation and protection from the sun. The hair on some areas of the body serves a special purpose such as our eyebrows and eyelashes which prevent sweat, dirt and debris from entering our eyes. Our hair also has a psychological role in providing us with an identity and provides us with a way of expressing ourselves.
Anatomy Charts to Support Learning
To expand your knowledge of hair and skin anatomy, our high-quality anatomy posters and wall charts provide detailed visual references ideal for revision and classroom display. Whether you’re a medical student, biology teacher, or a healthcare provider, these illustrated charts make the complex layers of the hair and skin far more accessible and engaging.
What is the Anatomy of the Hair
Hair is made from a protein called keratin which is the same protein found in our nails. Protruding from our skin, hair consists of two main parts: the follicle and the hair shaft.
Hair follicles are mini organs which anchor hair into the skin. The base of a hair follicle is called the hair bulb which grows to form a hair shaft. The hair bulb contains cells called a follicular matrix and a dermal papilla which work together to grow hair. Capillaries (blood vessels) surround these cells which help with the structure and growth of the hair. Cells called melanocytes are mixed within the matrix of cells which provide hair colour.
The hair shaft has three layers: the medulla is the core of the hair, which is only seen in the thick, large hairs. Next there is the cortex which gives strength, texture and colour to the hair strand. Finally, the cuticle is thin and colourless, and is the outer layer of the hair.
Explore Hair and Skin Anatomy Models
Take your anatomical understanding further with our selection of realistic models focusing on the hair, skin, and surrounding structures. These tactile tools allow for 3D visualisation of hair follicles, skin layers, and associated glands - making them essential for hands-on learners, tutors, and health science classrooms. Our anatomical models clearly demonstrate the relationships between the skin’s multiple layers and the roots of hair growth, which is incredibly valuable for both teaching and learning purposes.
Understanding Hair Growth
Hair growth rates vary from person to person, but an average growth rate is about 2.5 cm a month, and depending on where it is on the body, can last for several months or even years.
Hair growth goes through a cycle. The growth stage is known as anagen; during this phase, cells divide at a rapid rate. The catagen or transitional phase means that the hair growth is slowing down, hair attaches to the skin as it detaches from the hair follicles which start to shrink. During the telogen or resting phase, the hair growth stops and the old hair is detached from the follicle and falls out. A new hair will begin growing, which helps to push the old hair away.
Instantly Available Digital Downloads
Visual Aids to better Understand Anatomy
Understanding anatomy can be far more effective with high quality visual tools. Our range of anatomical models, posters and revision guides allow students and professionals to deepen their understanding through visual and tactile learning. Whether you're preparing for an exam, teaching a class, or working in a clinical setting, our resources provide a practical and engaging way to study human anatomy.
