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.
Medical imaging professionals take pictures of patients' internal organs so doctors can diagnose diseases based on the results. Medical imaging uses x-rays, ultrasound, MRI (magnetic resonance imaging) and nuclear medicine to create internal pictures of a person's body or to treat diseases.n the associate's degree program in diagnostic medical imaging, students gain the necessary communication skills to work with both doctors and patients. Students also acquire the technical knowledge to operate diagnostic equipment and position patients properly.