Scalp (Definition) 1  Scalp is the part of the skin on the skull, deeply attached to the skull and has the hair shafts from it.Rest of the skin in the head like facial skin(beard) has only 2 layers -epidermis and dermis. 2  Itching in the scalp can be triggered by a variety of causes. 3  Dandruff is when dead skin cells from the scalp shed.
Medical imaging is the technique and process of creating visual representations of the interior of a body for clinical analysis and medical intervention. Medical imaging seeks to reveal internal structures hidden by the skin and bones, as well as to diagnose and treat disease.
Radiology (also known as medical or diagnostic imaging) is a branch of medicine that deals with the study and application of imaging technology (like x-ray, ultrasound, CT, MRI, and PET) to create images of the human body, and diagnosing and treating disease with radiation.raduate Radiology Admission Requirements. The prequisites required to become accepted in an graduate and/or postgraduate PhD program in Radiology. What Radiology Students Learn. Topics and concepts that are covered and the overall approach or focus taken in studying Radiology.