1. Faculty of dentistry, Al-Ahliyya Amman University, Amman, Jordan
2. Department of Physiology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
3. Department of Human Anatomy, Faculty of Medicine, Jazan University, Jazan, Kingdom of Saudi Arabia
4. Department of Human Anatomy, Faculty of Medicine, Mansoura University, Mansoura, Egypt
5. Department of Basic Medical Science, Ibn Sina University for Medical Science, Amman, Jordan
6. Zoology Department, Faculty of Science, Damanhour University, Damanhour, Egypt