Using the Rotate tool, rotate the cadaver for a posterior view of the vertebral arteries curving around the atlas. You may want to Highlight the atlas to see this better.
Next, add the basilar artery that separates the major areas of the brain and forms the sinuses thriough which the venous return from the brain returns to the general circulation
Since the arterial vessels of the brain are so small, only the larger vessels can be seen on this cadaver.
Notice that the internal carotid artery makes a "step-like" pattern as it passes through the sphenoid bone and the cavernous sinus.
The external carotid arteries will be added when we discuss the arterial supply to the face and scalp.
Next, we will discuss the venous drainage of the brain. The extension of the dura into and around the brain hemispheres form the falx cerebri and the tentorium cerebelli
Add the inferior petrosal sinuses best seen on the cadavers left side, but a part is seen on the right
The superior petrosal, the sphenoparietal, intercavernous and the basilar sinuses cannot be seen on this cadaver
Add the cranial dura mater that separates the major areas of the brain and forms the sinuses thriough which the venous return from the brain returns to the general circulation
Add a sagittal plane through the cadaver. Use the Rotate tool to see the relationship of the venous return to the brain
Add a coronal plane and, using the Rotate tool, rotate the cadaver in order to get a sense of the 3D anatomy.
VH Dissector steps modified for Drexel Dissector by Dr. Haviva Goldman from original website activity created by Jeffrey Fahl, MD, Kyle Petersen, PhD, Richard Drake, PhD, Alesha Petitt, MA, Claira Ralston, MS and Kim Price, MA and modified by Jeffrey Fahl, MD, Michael Smith, PhD, Albany Medical College.