<prompt> Cavernous sinus contains:Internal carotid arteryAnterior cerebral arteryMiddle cerebral arteryOphthalmic artery  <response>: Ans: a Internal carotid arteryRef: Chaurasia, 3rd edi., Vol-3 Pg.73Structures passing through the centre of the cavernous sinus. Internal carotid artery Abducent nerveFig: Cavernous sinusStructures in the lateral wall of the sinus Oculomotor nerve Trochlear nerve Ophthalmic nerve Maxillary nerve Trigeminal ganglionThese structures are separated from blood by endothelial lining of the sinus. 