Free Human Body and Health MCQs with Answers

331. Any disease or infection that is naturally transmissible from vertebrate animals to humans is called?

• A. Zonoses
• B. Zoonoses
• C. Ananoses
• D. Chordnoses

Explanation: A zoonosis is an infection naturally transmitted from vertebrate animals to humans, such as rabies or some forms of influenza. “Zoonoses” is the plural form, but it is the intended option here.

332. Ageusia is the loss of which sense?

• A. Taste
• B. Smell
• C. Memory
• D. Sight
• E. Listening

Explanation: Ageusia means loss or marked reduction of the sense of taste. Loss of smell is called anosmia, which is the likely source of confusion.

333. Which of the following is used for hearing the sound of heart and lungs?

• A. Steroscope
• B. Stethoscope
• C. Oscillator
• D. Oncolator

Explanation: A stethoscope transmits and amplifies body sounds, allowing a doctor to hear the heart and lungs. The other listed terms are not instruments used for routine auscultation.

334. Red blood cells are produced in_________?

• A. Liver
• B. Heart
• C. Spleen
• D. Bone-marrow

Explanation: In adults, red blood cells are formed mainly in the red bone marrow, where stem cells develop into blood cells. The liver and spleen help process or remove blood cells but are not the main production site.

335. Who discovered the Polio Vaccine?

• A. Jonas Salk
• B. Jaber Ibn Hayan
• C. Selman Waksman
• D. None of these

Explanation: Jonas Salk developed the first successful widely used inactivated polio vaccine in the 1950s. Albert Sabin later developed the oral polio vaccine.

336. Who was the surgeon who pioneered antiseptic surgery in 1865?

• A. Edward Jenner
• B. Joseph Lister
• C. Henry William
• D. John Sleeman

Explanation: Joseph Lister pioneered antiseptic surgery by applying germ theory and using antiseptic methods, including carbolic acid, to reduce infections. Edward Jenner is associated with the smallpox vaccine, not antiseptic surgery.

337. 'ELISA' test is employed to diagnose?

• A. Corona virus
• B. AIDS antibodies
• C. Tuberculosis bacterium
• D. Cancer

Explanation: ELISA can detect antibodies against HIV and was historically a common screening test for AIDS-related infection. It is a general immunological technique, so modified ELISA tests can also detect other diseases.

338. Sleeping sickness in the natives of Africa is caused by________?

• A. Trichomonas
• B. Giardia
• C. Leishmania
• D. Trypanosoma

Explanation: African sleeping sickness is caused by Trypanosoma parasites, transmitted mainly by the tsetse fly. Leishmania causes leishmaniasis, while Giardia and Trichomonas cause different infections.

339. Which of the following is not a mosquito born disease?

• A. Dengue fever
• B. Malaria
• C. Sleeping sickness
• D. Filariasis

Explanation: Sleeping sickness is transmitted by the tsetse fly, not by mosquitoes. Dengue, malaria, and filariasis are commonly transmitted by mosquitoes.

340. Amnesia is related to:__________?

• A. Sleeping sickness
• B. Loss of sight
• C. Loss of hearing
• D. Loss of memory Trying Interactive Physics Simulation Software

Explanation: Amnesia means partial or complete loss of memory, often due to injury, disease, or psychological trauma. It does not specifically mean loss of sight or hearing.