medical MCQs – Page 488

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

9741. The metabolic effects of sympathomimetics are mediated by__________________?
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A. Dopaminergic receptors

B. All beta-adrenergic receptors

C. Opioid receptors

D. Beta 2 receptors

9742. The characteristic finding in chronic myeloid leukemia is______________?
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A. Total lack of neutrophils

B. Total lack of platelets

C. Reduced score of alkaline phosphatase in granulocytes

D. Reduced score of acid phosphatase in granulocytes

9743. Anaphylotoxins are___________?
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A. C3a, C5a

B. C2, C3

C. C3b, C5a

D. C3b, C5b

9744. A 13 year old boy presents with a large mixed lytic and blastic mass in the metaphyseal region of the lower end of femur. The most likely diagnosis is___________?
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A. Ewings sarcoma

B. Giant cell tumour

C. Chondrosarcoma

D. Osteosarcoma

9745. Usually metastatic lesions are osteolytic, but osteoblastic secondaries occur in cancer of_______________?
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A. Uterus

B. Thyroid

C. Prostate

D. Kidney

9746. Which of the following being is the most frequent site of thrombus ?
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A. Veins of lower extremities

B. Portal vein

C. Pulmonary vein

D. Hepatic vein

9747. Beta 2 agonist causes_______________?
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A. Mydriasis

B. Vasoconstriction

C. Bronchial muscle relaxation

D. Contraction of urinary spinctors

9748. Which of the following predisposes to thrombogenesis ?
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A. Endothelial injury

B. Stasis of blood

C. Turbulence of blood

D. All of the above

9749. Hypovolemic shock develops after loss of______________?
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A. 20% blood

B. 40% blood

C. 30% blood

D. 10% blood

9750. All of the following promotes wound healing except_________?
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A. Adequate oxygen supply

B. Protein

C. Steroids

D. Vitamin C

9751. Sunburst appearance and codmans triangle are seen in______________?
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A. Chondrosarcoma

B. Osteoma

C. None of the above

D. Osteosarcoma

9752. The following are recognized causes of neutropenia Except_______________?
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A. Aplastic anemia

B. Viral infection

C. Corticosteroid therapy

D. Typhoid fever

9753. All of the following statements are true regarding reversible cell injury, except______________?
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A. Diminished generation of adenosine triphosphate (ATP)

B. Detachment of ribosomes from the granular endoplasmic reticulum

C. Formation of amorphous densities in the mitochondrial matix

D. Formation of blebs in the plasma membrane

9754. T-Helper cells (TH2) initiates which type of immunity_______________?
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A. Induces cell mediated immunity

B. None of the above

C. Induces Humoral immunity

D. Induces immunity by activation of cytoxic T-cells

9755. All of the following vascular changes are observed in acute inflammation except_____________?
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A. Increased vascular permeability

B. Stasis of blood

C. Vasodilation

D. Decreased hydrostatic pressure

9756. Gamma gandy bodies are seen in_____________?
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A. Kidney

B. Spleen

C. Liver

D. Lung

9757. In which one of the following organs the venous emboli are most often iodged ?
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A. Lungs

B. Kidneys

C. Heart

D. Intestines

9758. Tumour which shows origin from more than one germ layers is known as________________?
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A. Teratoma

B. Hamartoma

C. Plemorphic tumours

D. Choristoma

9759. The wasting syndrome associated in cancer is_____________?
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A. Atelexis

B. Achalasia

C. Cacchexia

D. Cacoguesia

9760. Which of the following is correctly matched with the forms of extravasation hemorrhages______________?
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A. petechiae small pin point hemorrhages

B. Ecchymosis large extravasation of blood in to the skin and mucous membrane

C. Purpura small areas (1cm) of hemorrhage in to the skin and mucous membrane

D. All of the above

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