Abubaker Mohamed Ali2018-09-242018-09-242018http://hdl.handle.net/123456789/12837A Dissertation submitted in partial fulfillment of the academic requirement for the master degree in human clinical anatomyAbstract Background: The Femur bone is a vascular structure with unique features in its blood supply via numerous foramina located over its different segments, being named as nutrient foramina. Among vascular foramina, nutrient foramen is an important one which gives way to the nutrient artery. Methods: This study was conducted using descriptive cross sectional based of the study designs & it will include 50 femur bones of different cadaveric specimen’s witch will be obtained from the osteology section of our Department of Anatomy. All bones belonged to Sudanese cadavers, the age and gender of which are not determined. All the bones will macroscopically observed for the number, location and direction of the nutrient foramina. A magnifying lens were used to observe the foramina. The nutrient foramina were identified by the well-marked, often slightly raised, edge at the commencement of the canal. Results: The studied of 50 dry adult human Femora, 38 Femora had single nutrient foramen, 9 had two nutrient foramina and 3showed absence of the nutrient foramina, Location of 28 of single nutrient foramina were located at the junction of upper and middle 1/3rd of the femur, 4 of single nutrient foramina were located at the junction of middle and lower 1/3rd of the femur, 6 of single nutrient foramina were located in middle half of the length of the femur, 5 of double nutrient foramina were located in the upper and middle positions and 4 of double nutrient foramina were located at the upper and lower positions, According to the surface relationship; 37 of single nutrient foramen was located at the posterior surface and 1 at the medial surface .7 of double nutrient foramina were located at the posterior surface and 3 at the medial surface all nutrient foramina were seen to be directed upwards.enVARIATIONS NUTRIENTThesis