FONTANELLA
\fˌɒnte͡ɪnˈɛlə], \fˌɒnteɪnˈɛlə], \f_ˌɒ_n_t_eɪ_n_ˈɛ_l_ə]\
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A name, given to a space occupied by a cartilaginous membrane, in the foetus and new-born child, and situate at the union of the angles of the bones of the cranium. There are six fontanels. 1. The great or sincipital or anterior, fonticulus quadrangularis, Fontaine de la Tete, situate at the junction of the sagittal and coronal sutures. 2. The small or bregmatic or posterior, situate at the part where the posterior and superior angles of the parietal bones unite with the upper part of the os occipitis. 3. The two sphenoidal, in the temporal fossae; and, 4. The two mastoid, or of Casserius, Fonticuli mastoides seu Casserii, at the union of the parietal, occipital, and temporal bones.
By Robley Dunglison
Word of the day
Procollagen Proline Dioxygenase
- mixed-function oxygenase that catalyzes hydroxylation prolyl-glycyl-containing-peptide, usually in protocollagen, hydroxyprolylglycyl-peptide. The enzyme utilizes molecular oxygen with a concomitant oxidative decarboxylation of 2-oxoglutarate to succinate. EC 1.14.11.2.