The scalp is the anatomical area bordered by the face anteriorly and the neck to the sides and posteriorly. It is usually described as having five layers.

• S: The skin on the head from which head hair grows. It is richly supplied with blood vessels and can be subject to such conditions as dandruff and cutis verticis gyrata.
• C: Connective tissue. a thin layer of fat and fibrous tissue lies beneath the skin
• A: The aponeurosis (or galea aponeurotica) is the next layer. It is a tough layer of dense fibrous tissue which runs from the frontalis muscle anteriorly to the occipitalis posteriorly
• L: The loose connective tissue layer provides an easy plane of seperation between the upper three layers and the pericranium. In the barbaric practice of scalping the scalp is torn off through this layer. It also provides a plane of access in craniofacial surgery and neurosurgery.
• P: The pericranium is the periosteum of the skull bones and provides nutrition to the bone and the capacity for repair. It may be lifted from the bone to allow removal of bone windows (craniotomy).

The blood supply of the scalp is via four pairs of arteries, two from the external carotid and two from the internal carotid: A section of Human Skin In zootomy and dermatology, skin is an organ of the integumentary system made up of a layer of tissues that guard underlying muscles and organs. ... Head hair is a type of hair that is grown on the head (sometimes referring directly to the scalp). ... Human blood smear: a - erythrocytes; b - neutrophil; c - eosinophil; d - lymphocyte. ... Dandruff (Pityriasis capitis) is the excessive flaking of dead skin that forms on the scalp. ... Cutis verticis gyrata is a superficial condition usually associated with the scalp with sufferers showing some sort of visible folds, ridges or creases on the surface of the scalp. ... This article or section is in need of attention from an expert on the subject. ... The Galea aponeurotica is connective tissue at the back of the head. ... The Frontalis is a muscle of the human body. ... The Occipitalis muscle is a muscle of the human body. ... Native American Big Mouth Spring with decorated scalp lock on right shoulder. ... Craniofacial surgery is a subset of plastic surgery that deals with congenital and aquired deformities of the skull, face, and jaws. ... Old German engraving depicting a trepanation, an ancient and still performed neurosurgical procedure Neurosurgery is the surgical discipline focused on treating those central and peripheral nervous system diseases amenable to mechanical intervention. ... The periosteum is an envelope of fibrous connective tissue that is wrapped around the bone in all places except at joints (which are protected by cartilage). ... A craniotomy is a surgical operation in which part of the skull (part of the cranium) is removed in order to access the brain. ...

• the supratrochlea artery to the midline forehead
• the supraorbital artery to the lateral forehead and scalp as far up as the vertex
• the superficial temporal artery which gives frontal and parietal branches to supply much of the scalp
• the occipital artery which runs from posteriorly to supply much of the back of the scalp.

The scalp is innervated by the:

• Supratrochlea nerve and the supraorbital nerve from the ophthalmic division of the trigeminal nerve
• Greater occipital nerve (C2) posteriorly up to the vertex
• Lesser occipital nerve (C3) behind the ear.

The scalp plays an important role in the aesthetics of the face. Androgenic alopecia, or male pattern hair loss, is a common cause of concern to men. It may be treated by medication (eg finasteride) or hair transplantation with variable success. If the scalp is heavy and loose, a common change with aging, the forehead may be low, heave and deeply lined. The brow lift procedure aims to address these concerns. The supraorbital nerve arises from the orbit by the supraorbital foramen and supplies the upper eyelid and forehead integuments. ... The trigeminal nerve is the fifth (V) cranial nerve, and carries sensory information from most of the face, as well as motor supply to the muscles of mastication (the muscles enabling chewing), tensor tympani (in the middle ear), and other muscles in the floor of the mouth, such as the... The greater occipital nerve is a spinal nerve arising between the first and second cervical vertebrae, along with the lesser occipital nerve. ... The lesser occipital nerve is a spinal nerve arising between the first and second cervical vertebrae, along with the greater occipital nerve. ... Aesthetics, esthetics or æsthetics is both the study of beauty and the properties of a system that appeal to the senses, as opposed to the content, structures, and utility of the system itself. ... Where is Propecia? I am sure that the drug company which makes the drug keeps tabs here every hour to make sure that there is little written about it other than the chemical make-up and some of the side effects. ... This article does not cite its references or sources. ... Ageing or aging is the process of getting older. ...

The scalp is a common site for the development of tumours including:

• epidermoid cyst
• pilar cyst
• actinic keratosis and squamous cell carcinoma
• basal cell carcinoma
• merkel cell tumours

It also means the illegal selling of tickets for an event in the black market. A person who indulges in such an activity is a scalper. ICD-10 L72. ... Actinic keratosis also called solar keratosis, senile keratosis, or AK, is a premalignant condition of thick, scaly, or crusty patches of skin. ... In medicine, squamous cell carcinoma is a form of cancer of the carcinoma type that may occur in many different organs, including the skin, the esophagus, the lungs, and the cervix. ... Basal cell carcinoma (BCC) is the most common skin cancer. ... Merkel cells are large oval cells found in the skin of vertebrates. ... The black market or underground market is the part of economic activity involving illegal dealings, typically the buying and selling of merchandise or services (for example sexual services in many countries) illegally. ...

In betting terminology it means a bet on both sides on the money line in such a way as to guarantee profit. Similarly its use in trading refers to buying and selling in equal amounts so that there is no net position at the end of the day's trading thus making a minimal profit. The scalp can be done in either a few minutes or a few hours. Betting scalps can be calculated with a scalp calculator. Gambling (or betting) is any behavior involving risking money or valuables (making a wager or placing a stake) on the outcome of a game, contest, or other event in which the outcome of that activity depends partially or totally upon chance or upon ones ability to do something. ...

See also

• Scalping -- the practice of taking the scalp as a trophy of war
• Trichology -- the scientific study of hair and scalp