In which diagnostic system, piezoelectric effect and reverse piezoelectric effect are involved?
EEG
CAT
USG
MRI
C.
USG
Piezoelectric Effect is the ability of certain materials to generate an electric charge in response to applied mechanical stress. Also, it can be defined as the conversion of electrical energy to mechanical energy. The inverse piezoelectric effect refers to a deformation of the materials that results from the application of an electric field.
Ultrasound is produced and detected using an ultrasound transducer. Which are capable of sending an ultrasound and then the same transducer can detect the sound and convert it to an electrical signal to be diagnosed. To produce an ultrasound, a piezoelectric crystal has an alternating current applied across it. The piezoelectric crystal grows and shrinks depending on the voltage run through it.
Which one of the following genus of insects prefer to breed in clean water and their larvae lie parallel to the surface of water?
Anopheles
Culex
Aedes
Phlebotomus
Infection of Ascaris usually occurs by
drinking water containing egg of Ascaris
eating imperfectly cooked port
tse-tse fly
mosquito bite
The cell-mediated immunity inside the human body is carried out by
T-lymphocytes
B-lymphocytes
thrombocytes
erythrocytes
The carcinoma, a type of cancer, originates from
blood
connective tissue
epithelial tissue
lymph gland
Which one of the following is a correct match?
Filariasis - Taenia solium
Encephalitis - Culex vishnui
Malaria - Phlebotomus sp.
Kala-azar - Anopheles stephensi
Which of the following human parasites require mosquito to complete their life-cycle?
Ascaris tumbricoides and Wuchereria bancrofti
Leishmania donovani and Plasmodium ovale
Ascaris lumbricoides and Leishmania donovani
Wuchereria bancrofti and Plasmodium ovale
The expanded name of MRI is
Medical Reserach Instrument
Magnetic Resonance Imaging
Magnetic Research Institute
Medical Resonance Imaging
