Angina may feel like pressure or squeezing in your chest. The pain also can occur in your shoulders, arms, neck, jaw, or back. Angina pain may even feel like indigestion. Angina isn't a disease; it's a symptom of an underlying heart problem.
Uses of X-rays. The main use of X-rays is in medicine. A comman application is in the form of X-ray machines, which take photos of a patientâs body. If an arm or leg were broken for example, then this limb would be put in front of the X-ray with a piece of photographic film behind.
X-rays are still used to identify tumours [tumour: An abnormal growth of cells, often caused by cancer.] . X-rays are also used in CAT scans. âCATâ stands for Computer Axial Tomography and generates a three-dimensional image from a large series of two-dimensional X-ray images.hese appear black on X-ray images. X-ray of a pinned wrist fracture. X-rays give more reliable results than ultrasound [ultrasound: High frequency sound, above 20 kHz, that is too high-pitched to hear.] when checking for broken bones and so X-rays are used more often to check for breaks.