Galea Aponeurotica is a dense, fibrous membrane covering the Cranium superiorly. It is also known as Epicranial Aponeurosis.
Galea Aponeurotica Occipitalis Muscle Semispinalis Capitis Muscle Splenius Capitis Muscle Frontalis Muscle Temporal Muscle Trapezius Muscle Masseter Muscle Buccinator Muscle Depressor Anguli Oris Muscle
STRUCTURE AND POSITION
Galea Aponeurotica is made up of dense fibrous tissue. It’s quite tough physically.
Galea Aponeurotica has two layers. Superior Layer is attached to the overlying scalp Integument and is firmly joined to it. Lower Layer attaches to the Pericranium loosely and provides flexibility and mobility over the Cranium.
Galea Aponeurotica extends between Frontalis Muscle anteriorly, and Occipitalis Muscle posteriorly. On lateral sides it extends upto the Temporalis Muscle.
On lateral sides it gives off External Auricular Muscles and changes into the Temporal Fascia. This part is not having character of aponeurosis (shiny,flat, membranous tendon).
Galea Aponeurotica is attached posteriorly to the External Occipital Protuberances and Highest Nuchal Lines. Anteriorly it is attached to the Frontalis Muscle.
Galea Aponeurotica is not richly supplied with Blood Vessels and Nerves.
Galea Aponeurotica gives protection and mobility to the Scalp over the Cranium.
Galea Aponeurotica also gives important attachments to the Frontal, Occipital, Temporal and External Auricular Muscles.
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