päänahkul

The term "päänahkul" is a Finnish word that translates to "scalp" in English. It refers to the skin covering the top and back of the human head. This skin is unique in that it contains a dense concentration of hair follicles, which are responsible for hair growth. The scalp is also rich in blood vessels, which supply nutrients to the hair follicles and help regulate body temperature.

The scalp is divided into several distinct anatomical regions. The vertex is the uppermost part of the scalp, while the occiput is the back portion. The temporal regions are located on either side of the head, above the ears. The forehead is the frontmost part of the scalp, extending from the hairline to the eyebrows.

The health of the scalp is crucial for healthy hair growth. Various conditions can affect the scalp, including dandruff, psoriasis, and alopecia areata. These conditions can cause itching, inflammation, and hair loss. Proper scalp hygiene, such as regular washing and gentle cleansing, is essential for maintaining a healthy scalp. Specialized shampoos and treatments are available to address specific scalp concerns. The scalp's condition can also be influenced by genetics, diet, and environmental factors.