LM human scalp; H&E stain. The scalp is usually described as having five layers, which can conveniently be remembered as a mnemonic: S: The skin on the head from which head hair grows. C: Connective tissue. A: The aponeurosis called epicranial aponeurosis (or galea aponeurotica) is the next layer. L: The loose areolar connective tissue layer provides an easy plane of separation between the upper three layers and the pericranium. P: The pericranium is the periosteum of the skull bones and provides nutrition to the bone and the capacity for repair. Magnification unknown.