Scalp and hair: tissues and cells (preview) - Human Histology and Anatomy | Kenhub

Описание: The scalp is the part of your head that extends from the top of the forehead across to the epicranial aponeurosis, and is, usually, covered in hair. Watch the full version of this video here: https://khub.me/bhgi1

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Covering the surface of your head, the scalp, extends from the top of your forehead across to the epicranial aponeurosis of the head. Laterally, it reaches down to the external auditory meatus and zygomatic arch (cheekbone of the skull). The scalp consists of 5 distincts layers: the skin, connective tissue, the epicranial aponeurosis, loose areolar tissue and the pericranium. The upper layers of the scalp can slide over the connective tissue beneath them, which is why the skin on your head has some ‘movement’.

The scalp is obviously hairy and has many sebaceous glands (oil glands) scattered across it. This density at which these glands are found means that the scalp can commonly be affected by sebaceous cysts. Scalp hairs protrude from structures known as hair follicles, which are situated in the dermis of the scalp. The hair follicle is comprised of layers of cells that work together to support and form the hair shaft.

In the full version of this tutorial, we will cover:
scalp;
structure of hair;
parts of a hair fiber;
accessory structures.

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Read more on the microscopic anatomy of the scalp and hair on this article https://khub.me/o9mba

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