Type of Article: Original Research
Year: 2015 | Volume 3 | Issue 4 | Page No. 1533-1535
Date of Publication: 30-11-2015
STUDY ON MORPHOLOGICAL VARIATIONS IN STRUCTURE OF THE JUGULAR FORAMEN
Shruthi B.N 1, Pavan P. Havaldar 2, Shaik Hussain Saheb *3.
1 Associate Professor, Department of Anatomy , Raja Rajeswari Medical College & Hospital, Bengaluru, India.
2 Associate Professor Department of Anatomy, Gadag Institute of Medical Sciences, Gadag, India.
*3 Assistant Professor Department of Anatomy, JJM Medical College, Davangere, India.
Address: Shaik Hussain Saheb, Assistant Professor, Department of Anatomy, JJM Medical College, Davangere, Karnataka, India. Mobile -+91-9242056660.
Background: The jugular foramen is difficult to understand and to access surgically; the difficulties in exposing this foramen are created by its deep location and the surrounding structures, such as the carotid artery anteriorly, the facial nerve laterally, the hypoglossal nerve medially and the vertebral artery inferiorly, all of which block access to the foramen and require careful management. It is difficult to conceptualize because it varies in size and shape in different crania, between the two sides the same cranium, from its intracranial to extracranial end in the same foramen and because of its complex irregular shape, its curved course, its formation by two bones and the numerous nerves and venous channels that pass through it. The present study is concentrated to study morphological features of jugular foramen.
Material and Methods: The present study was undertaken in 250(500 sides) adult south Indian skulls from different regions of south India, from different medical colleges. We have observed the size of foramen and presence of jugular fossa.
Result: Out of 250 skulls in 20.8% of cases the right foramina were larger than the left, in 24.8% of cases the left foramina were larger than the right and in 8% cases were equal on both sides. The jugular fossa present bilaterally in 60%, on the right only in 21.6% cases, on the left only in 7.6% cases and was absent in 10.8% cases.
Conclusion: The present study concludes that there is no significance different between size of foramen in right and left side. The jugular fossa or bulb present bilaterally in majority of cases.
KEY WORDS: Jugular foramen, Jugular fossa, Compartments, Separation.
- Wysocki J, Chmielik LP, Gacek W. Variability of magnitude of the human jugular foramen in relation condition of the venous outflow after ligation of the internal jugular vein. J Otolaryngologia 1999;53:173–77.
- Navsa N, Kramer B. A quantitative assessment of the jugular foramen. Anatomischer Anzeiger 1998;180:269–73.
- Albert L. Rhoton Jr. Jugular foramen, Neurosurgery, 2000;47(3).
- Hussain Saheb S, Mavishetter GF, Thomas ST, Prasanna LC, Muralidhar P. Morphological variations in the structure of the jugular foramen of the human skulls of south India. J Biomed Sci and Res. 2010;21(4):349-50.
- Sturrock R.R, Variations in the structure of the jugular foramen of the human skull. Journal of Anatomy. 1998;160:227-230.
- Hatilboglu M.T & Anil A. Structural variations in the jugular foramen of the skulls, Journal of Anatomy. 1992;180:191-196.
- Patel & Singel. Variations in the structure of jugular foramen of the human skull in Saurashtra Region. J. Anat. Soc. India. 2007;56(2):34-37.
Shruthi B.N, Pavan P. Havaldar, Shaik Hussain Saheb. STUDY ON MORPHOLOGICAL VARIATIONS IN STRUCTURE OF THE JUGULAR FORAMEN. Int J Anat Res 2015;3(4):1533-1535. DOI: 10.16965/ijar.2015.268