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Anatomy - “Temporoparietalis Latin, tempus (temple); parietalis (pertaining to the walls of a cavity)” Origin: Fascia superior to the ear. Insertion Lateral margin of the galea aponeurotica. Facial nerve (VII), temporal branch. Action Constricts the scalp. Elevates auditory organs 
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Anatomy -Occipitofrontalis Latin, frons, the forehead, the anterior part of the head; occiput, the posterior part of the head. The occipitofrontalis has two muscular bellies, the frontal and occipital, interconnected by an aponeurosis known as the galea aponeurotica, named for its resemblance to a helmet (Latin galea). Source Frontal belly: epidermis of the eyebrows. Occipital belly: lateral two-thirds of the superior nuchal line of the occipital bone. Mastoid process of the temporal bone. Insertion: Galea aponeurotica. Facial nerve (VII), including the posterior auricular and temporal branches. Action : The frontal belly elevates the eyebrows and creates horizontal creases on the forehead. Occipital belly: retracts the scalp posteriorly. Fundamental functional movement Enables facial expressions, such as displaying surprise or frowning.   |
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