A Morphologic and Morphometric Study of the jugular foramen of the adult human skulls: an osteological study in Upper Egypt

Abstract Introduction Jugular foramen is one of the most fascinating foramina of the human skull. It is a complex, irregular bony canal located between the occipital bone and petrous part of the temporal bone. Many important structures, like 9th, 10th, 11th cranial nerves, meningeal branch of occipital and ascending pharyngeal arteries, internal jugular vein, and inferior petrosal sinus, are passing through it. The jugular fossa has a septum and a dome. The septum divides the foramen into two compartments: anteromedial compartment (pars nervosa) and posterolateral compartment (pars vascularis). The dome contains superior bulb of internal jugular vein. The architecture of the foramen varies in size, shape, and laterality besides differences related to sex and race. The morphometric measurements of jugular foramen are very important for neurosurgeries and head and neck surgeries. Objectives The aim of the present study is to study the morphology of jugular foramen along with its dimensions, compartments, presence of partial or complete septa and dome. Materials and Methods A total number of 60 jugular foramina were examined from 30 adult dry human skulls of unknown age and sex from the Department of Anatomy, PSG Institute of Medical Sciences and Research, Coimbatore. Measurements were taken using Digital Vernier calipers. Results were analyzed statistically. Results The length, width, and surface area of jugular foramen of right side were measured and compared with the left side. Length and width of the jugular foramen was significantly higher on the right side. The presence of partial septum was found in 27 skulls (90%) on the right side and 29 skulls (99.7%) on the left side, respectively. Dome was present in 100% of the jugular foramina on the right side and 90% of the jugular foramina on the left side. Separate opening for inferior petrosal sinus was found in eight skulls (27%) on the right side and four skulls (13%) on the left side. Conclusion This study provides a clear understanding of anatomy of jugular foramen and supports the reported morphometric variations. The morphometric variations of jugular foramen in the parameters of the skull are probably due to ethnic and racial factors. Knowledge of these variations is important for neurosurgeons and radiologists who deal with space occupying lesions of the structures surrounding jugular foramen. This study may be helpful for ENT surgeons while performing middle ear surgeries.

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Morphometric study of jugular foramen in Tamil Nadu region

National Journal of Clinical Anatomy ◽

10.1055/s-0039-3401710 ◽

2013 ◽

Vol 02 (02) ◽

pp. 071-074 ◽

Cited By ~ 1

Author(s):

P Vijisha ◽

Arun Kumar Bilodi ◽

Keyword(s):

Tamil Nadu ◽

Jugular Foramen ◽

Morphometric Study ◽

Inflammatory Processes ◽

Length Width ◽

Human Skulls ◽

Base Of The Skull ◽

Age And Sex ◽

Metric Information

Abstract Background and aims: Jugular foramen is an important foramen transmiting a number of structures at the base of the skull. Various tumours and infiltrating inflammatory processes are associated with this foramen. Hence, present study was taken up to study morphometry of the jugular foramen in human skulls in Tamil Nadu region. Material and methods: A total number of 60 jugular foramina were examined from 30 adult dry skulls of unknown age and sex. Measurements were taken using Vernier Calipers. Results were analysed statistically. Results: The length, width and area of jugular foramen of right side were compared with left side. Predominance of one of the two foramina was found in 86.6% (26): Predominance on right was 76.6% (23) and on left was 10% (3).The presence of partial septum was found around 73.3% on right side and 80% on left side respectively. Dome was present only 26.6% on right side and 3.33% on left side but in 70% of skulls it was present bilaterally. Conclusion: The morphometric variations in the skulls of Tamil Nadu region are probably ethnic and racial. The metric information is of use to the neurosurgeons dealing with the region.

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MORPHOMETRIC STUDY OF PTERION IN DRY ADULT HUMAN SKULLS

International Journal of Anatomy and Research ◽

10.16965/ijar.2017.337 ◽

2017 ◽

Vol 5 (3.3) ◽

pp. 4365-4368

Author(s):

Pratima Kulkarni ◽

◽

Shivaji Sukre ◽

Mrunal Muley ◽

◽

...

Keyword(s):

Morphometric Study ◽

Adult Human ◽

Human Skulls

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Morphological and Morphometric study of Jugular Foramen in human dry skull of Eastern Indian origin: An Anatomical Investigation

Research Journal of Pharmacy and Technology ◽

10.52711/0974-360x.2021.00664 ◽

2021 ◽

pp. 3829-3832

Author(s):

Pratima Baisakh ◽

Lopamudra Nayak ◽

Sujita Pradhan ◽

Saurjya Ranjan Das ◽

Sitansu Kumar Panda

Keyword(s):

Jugular Foramen ◽

Morphometric Study ◽

Indian Origin ◽

Cranial Fossa ◽

Left And Right ◽

Jugular Fossa ◽

Human Skulls ◽

Student’S T ◽

Shape And Size ◽

Student’S T Test

Background: Jugular foramen (JF) is one of the complex foramen present in base of skull. It varies in shape and size from side to side in same cranium, in different cranium and in different races. It is associated with many diseases of posterior cranial fossa and many skull base surgeries are being carried out by drilling the skull bone around JF for better exposure. Aim and objectives: The present study aims to carry out the morphological and morphometric analysis of jugular foramen of skulls of eastern Indian origin. Materials and Methods: The study was carried out on 100 JF of 50 dried human skulls. Anteroposterior(width), medio-lateral diameter(length) of JF, width and depth of the jugular fossa were measured. Mean and standard deviation of different measurements of left and right side were statistically analysed by student’s t-test. Presence of dome and septum were also studied. Results: The mean of all the measurements are more on right side than left side but it is statistically insignificant (p>0.05). Bony septum was found in 76% cases on left side and 60% on right side. Complete septation wasn’t found in our study. Domed roof was present in 66% cases on right side as compared to 52% on left side. Conclusion: Shape and size of JF may vary due to different size of internal jugular vein and it’s superior bulb. These variations can be due to constitutional, racial or genetic. This anatomical knowledge of JF may help the neurosurgeons, ENT surgeons and radiologists during their clinical exploration.

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