OCCIPITO-FRONTALIS
\ˌɒksɪpˈiːtə͡ʊfɹʌntˈɑːliz], \ˌɒksɪpˈiːtəʊfɹʌntˈɑːliz], \ˌɒ_k_s_ɪ_p_ˈiː_t_əʊ_f_ɹ_ʌ_n_t_ˈɑː_l_i_z]\
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The majority of anatomists call by this name the whole of the fleshy plane, with the epicranial or coronal aponeurosis, (see Calotte,) which covers the head from the occiput to the forehead. It is attached, by its posterior fasciculus, to the two outer thirds of the upper curved line of the occipital bone, and to the outer surface of the mastoid portion of the temporal; and, by its anterior fasciculus, it terminates at the eyebrow, where it becomes confounded with the superciliaris, pyramidalis nasi, and orbicularis palpebrarum. The occipito-frontalis, by the contraction of its anterior fasciculus, draws forward a part of the integuments of the cranium. It wrinkles the skin of the forehead transversely, and may, also contribute to open the eye by its decussation with the orbicularis palpebrarum. The posterior fasciculus of the muscle draws backwards a part of the skin of the cranium, and assists in stretching the common aponeurosis.
By Robley Dunglison
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.