Emrapproved Monthly Medical Trivia Quiz - August 2012

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Quizzes Created: 26 | Total Attempts: 3,513
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Questions and Answers
  • 1. 

    Which of the following vessels does NOT carry blood back to the heart?

    • A. 

      Inferior venae cavae

    • B. 

      Superior venae cavae

    • C. 

      Pulmonary artery

    • D. 

      Pulmonary vein

    Correct Answer
    C. Pulmonary artery
    Explanation
    The pulmonary artery does not carry blood back to the heart. Instead, it carries deoxygenated blood from the heart to the lungs for oxygenation. The other options, inferior venae cavae and superior venae cavae, are large veins that carry deoxygenated blood from the body back to the heart. The pulmonary vein, on the other hand, carries oxygenated blood from the lungs back to the heart.

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  • 2. 

    Which of the following vertebrae are found in the neck?

    • A. 

      Cervical

    • B. 

      Lumbar

    • C. 

      Sacral

    • D. 

      Coccyx

    Correct Answer
    A. Cervical
    Explanation
    The vertebrae found in the neck are called cervical vertebrae. The cervical vertebrae are the uppermost segment of the vertebral column and are responsible for supporting the head and allowing for a wide range of movement in the neck. They are smaller and more flexible compared to the other vertebrae in the spine.

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  • 3. 

    Insulin

    • A. 

      Is produced by the liver

    • B. 

      Controls metabolism

    • C. 

      Increases blood sugar levels

    • D. 

      Decreases blood sugar levels

    • E. 

      Controls blood calcium levels

    Correct Answer
    D. Decreases blood sugar levels
    Explanation
    Insulin is a hormone produced by the pancreas, not the liver. It plays a crucial role in controlling metabolism, specifically in regulating the level of glucose (sugar) in the blood. Insulin helps decrease blood sugar levels by allowing cells in the body to take up glucose from the bloodstream and use it for energy or storage. Therefore, the correct answer is that insulin decreases blood sugar levels.

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  • 4. 

    The largest portion of the brain is the:

    • A. 

      Cerebrum

    • B. 

      Cerebellum

    • C. 

      Medulla Oblongata

    Correct Answer
    A. Cerebrum
    Explanation
    The cerebrum is the largest portion of the brain, responsible for higher cognitive functions such as thinking, memory, and voluntary movements. It is divided into two hemispheres and is responsible for processing sensory information, controlling motor functions, and coordinating complex behaviors. The cerebrum plays a crucial role in human intelligence and is involved in various mental processes, including language, problem-solving, and decision-making.

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  • 5. 

    The main function of the olfactory nerve is:

    • A. 

      Touching

    • B. 

      Tasting

    • C. 

      Smelling

    • D. 

      Seeing

    • E. 

      Hearing

    Correct Answer
    C. Smelling
    Explanation
    The olfactory nerve is responsible for the sense of smell. It carries sensory information from the nose to the brain, allowing us to detect and identify different odors. This sense plays a crucial role in our daily lives, as it helps us to perceive and enjoy a wide range of scents, as well as to detect potential dangers, such as spoiled food or gas leaks.

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  • 6. 

    A pigment that gives color to the skin is:

    • A. 

      Corneum

    • B. 

      Keratin

    • C. 

      Melanin

    • D. 

      Folliculum

    Correct Answer
    C. Melanin
    Explanation
    Melanin is a pigment that gives color to the skin. It is produced by cells called melanocytes, which are located in the epidermis, the outermost layer of the skin. Melanin is responsible for determining the color of our skin, hair, and eyes. It helps to protect the skin from the harmful effects of the sun's ultraviolet (UV) rays by absorbing and scattering the UV radiation. The amount and type of melanin in our skin are determined by genetics and can vary among individuals, resulting in different skin tones and shades.

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  • 7. 

    Which term describes the spread of malignant tumors to a distant location?

    • A. 

      Encapsulation

    • B. 

      Anaplasia

    • C. 

      Metastasis

    • D. 

      Infiltration

    Correct Answer
    C. Metastasis
    Explanation
    Metastasis is the correct answer because it refers to the spread of malignant tumors from their original site to distant locations in the body. This process occurs when cancer cells break away from the primary tumor, enter the bloodstream or lymphatic system, and establish new tumors in different organs or tissues. Encapsulation refers to the formation of a protective barrier around a tumor, anaplasia refers to the loss of normal cell differentiation, and infiltration refers to the invasion of surrounding tissues by cancer cells.

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  • 8. 

    The first permanent artificial heart was created in 1982, the Jarvik 7. What was this heart made from?

    • A. 

      Teflon and titanium

    • B. 

      Kevlar

    • C. 

      Silicon and stainless steel

    • D. 

      Dacron polyester, plastic and aluminum

    Correct Answer
    D. Dacron polyester, plastic and aluminum
    Explanation
    The first permanent artificial heart, the Jarvik 7, was made from a combination of Dacron polyester, plastic, and aluminum. These materials were used to construct the heart to ensure its durability and functionality within the human body. Dacron polyester provides strength and flexibility, while plastic and aluminum contribute to the overall structure and stability of the artificial heart. This combination of materials allowed the Jarvik 7 to successfully replace the function of a natural human heart.

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  • 9. 

    The average red blood cell lives for how many days?

    • A. 

      80

    • B. 

      120

    • C. 

      400

    Correct Answer
    B. 120
    Explanation
    Red blood cells have a lifespan of approximately 120 days. They are constantly being produced in the bone marrow and then circulate in the bloodstream, carrying oxygen to various parts of the body. After about 120 days, they become old and damaged, and are removed from the bloodstream by the spleen and liver. New red blood cells are then produced to replace the old ones. This continuous process ensures that the body has a constant supply of healthy red blood cells.

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  • 10. 

    What was the most widely prescribed antideppressant in the U.S. in the 1990s?

    • A. 

      Zoloft

    • B. 

      Lexapro

    • C. 

      Prozac

    Correct Answer
    C. Prozac
    Explanation
    Prozac was the most widely prescribed antidepressant in the U.S. in the 1990s. This drug gained popularity due to its effectiveness in treating depression and its relatively mild side effects compared to other antidepressants available at the time. The widespread use of Prozac during this period can be attributed to its successful marketing campaigns and its reputation as a breakthrough medication for mental health conditions.

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