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Analysis of foramen ovale with special emphasis on pterygoalar bar and pterygoalar foramen

100%

Daimi S. R. , Siddiqui A. U. , Gill S. S.

nr 3

The foramen ovale is of great surgical and diagnostic importance in procedures like percutaneous trigeminal rhizotomy for trigeminal neuralgia, transfacial fine needle aspiration technique in perineural spread of tumour, and electroencephalographic analysis. This study presents the anatomic variations in dimensions, appearance, number of foramen ovale (FO), and presence of pterygoalar bar and pterygoalar foramen. For the present study ninety dry adult human skulls were utilised. Anterioposterior (length) and transverse (width) diameters of FO were measured, and the presence of pterygoalar bar and foramen were observed. The most common shape of FO observed was like a figure ‘D’. The ranges of anteroposterior diameter of the right and left FO were 8.5–4.5 mm and 10–3 mm, respectively. The mean length of the right FO was 6.60 mm while that of the left FO was 6.26 mm. The ranges of transverse diameter (width) of both right and left foramen were 2.5–6 mm and 2–5 mm, respectively. The mean transverse diameter of the right FO was 3.70 mm and that of left was 3.34 mm. Bony spur in FO was seen in 6.66% of cases. A complete pterygoalar bar and foramen were observed in seven cases unilaterally, and in one case it was bilateral. Anteroposterior and transverse diameters of right FO were greater than left. Anatomical understanding, including the size, shape of FO, and presence of pterygoalar bar, has immense surgical and diagnostic importance. (Folia Morphol 2011; 70, 3: 149–153)

Improved performance of muskmelon [Cucumis melo] seeds with osmoconditioning

100%

Singh G. , Gill S. S. , Sandhu K. K.

tom 52

nr 1-2

Seeds of muskmelon (Cucumis melo) cultivars viz. Pb. Hybrid and Pb. Sunehri were osmoconditioned with Polyethylene glycol j(PEG) and KNO, solutions to enhance their performance at low temperature. Osmoconditioning both with PEG 6000 and KNO3 increased per cent germination, speed of germination, vigour in terms of dry weight and length of the seedlings and root/shoot ratios. KNO3 priming recorded more pronounced effect in all the above mentioned parameters. Other vigour parameters such as electrical conductance of seed leachates was decreased with osmoconditioning while dehydrogenase activity was enhanced. Osmoconditioning resulted in increased activity of amylases.

Nasiona dwóch odmian melona (Cucumis melo) byty osmokondycjonowane glikolem polietylenowym ( PEG ) i KNO3 dla poprawienia ich reakcji na niskie temperatury. Użycie obu wymienionych preparatów zwiększyło procent i szybkość kiełkowania, wigor roślin określany ich suchą masą i wielkością siewek oraz stosunek korzeń/pęd. KNO3 miał bardziej wyraźny wpływ na wszystkie wymienione cechy. Inne parametry wigoru, np. przewodnictwo elektryczne cieczy otrzymanej w wyniku przemywania nasion ulegało obniżeniu pod wpływem osmokondycjonowanía, podczas gdy aktywność dehydrogenazy i amylaz była zwiększona.