A system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by producing the immune response.A system that provides a defense mechanism to organism, providing defensive measures against antigens which would prove harmful to the organism.
Ultrasound is a type of imaging. It uses high-frequency sound waves to look at organs and structures inside the body. Health care professionals use it to view the heart, blood vessels, kidneys, liver, and other organs. During pregnancy, doctors use ultrasound to view the fetus. Unlike x-rays, ultrasound does not expose you to radiation. During an ultrasound test, you lie on a table. A special technician or doctor moves a device called a transducer over part of your body. The transducer sends out sound waves, which bounce off the tissues inside your body.
An ultrasound test (sonogram) is a painless exam that uses sound waves to check a pregnancy or to get images of body organs. An ultrasound can give your doctor almost the same information as an x-ray, but it doesnât expose you to harmful radiation.There are 3 types of ultrasound: pelvic, pregnancy, and abdominal. pelvic ultrasound is used to check female reproductive organs. It can find fibroid tumors, ovarian growths, cysts, and problems with fallopian tubes. Some facilities require that you have a full bladder for your test. Please check with the site where your ultrasound is scheduled.