Undergraduate and Postgraduate study requirements for foreign student

My name is Ejimkonye, Kizito Obierika. I am a native of Enugu state of Nigeria. I am a graduate of Biochemistry from the University of Nigeria, after my Primary and Secondary (High school) education respectively. I write humbly to be detailed on the reguirements for a postgraduate study in Isreal especially, universities of your catchment. Moreso, requirements for a course in medicine. I belive in the institutions of the Isreali nation. Thank you.