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  • Question 1 - Elevation of the eyeball is primarily produced by which of the following muscles:...

    Incorrect

    • Elevation of the eyeball is primarily produced by which of the following muscles:

      Your Answer: Superior rectus and superior oblique

      Correct Answer: Superior rectus and inferior oblique

      Explanation:

      Elevation of the eyeball is produced by the superior rectus and the inferior oblique muscles.

    • This question is part of the following fields:

      • Anatomy
      • Head And Neck
      14.5
      Seconds
  • Question 2 - Coagulative necrosis is typically seen in which of the following: ...

    Correct

    • Coagulative necrosis is typically seen in which of the following:

      Your Answer: Myocardial infarction

      Explanation:

      Coagulative necrosis is the most common form of necrosis characterised by the loss of cell nuclei, but with general preservation of the underlying architecture. Dead tissue is macroscopically pale and firm. This is the classic pattern seen in myocardial infarction.Liquefactive necrosis leads to complete loss of cellular structure and conversion into a soft, semi-solid mass. This is typically seen in the brain following cerebral infarction.Caseous necrosis is most commonly seen in tuberculosis. Histologically, the complete loss of normal tissue architecture is replaced by amorphous, granular and eosinophilic tissue with a variable amount of fat and an appearance reminiscent of cottage cheese.Gangrenous necrosis is necrosis with putrefaction of tissues due to exposure to air (dry gangrene) or infection (wet gangrene).

    • This question is part of the following fields:

      • Inflammatory Responses
      • Pathology
      35.4
      Seconds
  • Question 3 - Which of the following describes the site of a Meckel's diverticulum: ...

    Correct

    • Which of the following describes the site of a Meckel's diverticulum:

      Your Answer: Ileum

      Explanation:

      Meckel’s lies on the antimesenteric surface of the middle-to-distal ileum, approximately 2 feet proximal to the ileocaecal junction. It appears as a blind-ended tubular outpouching of bowel, about 2 inches long, occurring in about 2% of the population, and may contain two types of ectopic tissue (gastric and pancreatic). The rich blood supply to the diverticulum is provided by the superior mesenteric artery.Proximal to the major duodenal papilla the duodenum is supplied by the gastroduodenal artery (branch of the coeliac trunk) and distal to the major duodenal papilla it is supplied by the inferior pancreaticoduodenal artery (branch of superior mesenteric artery). The arterial supply to the jejunoileum is from the superior mesenteric artery.

    • This question is part of the following fields:

      • Abdomen
      • Anatomy
      36.9
      Seconds
  • Question 4 - A 77 year old lady presents to ED with her left leg shortened...

    Incorrect

    • A 77 year old lady presents to ED with her left leg shortened and externally rotated following slipping and falling on a wet bathroom floor. There is an intracapsular fracture of the neck of femur seen on imaging studies. She is at risk of avascular necrosis of the head of femur. This is caused by lack of blood supply from which of these arteries?

      Your Answer: Lateral circumflex artery

      Correct Answer: Medial circumflex artery

      Explanation:

      The primary blood supply to the head of the femur is from branches of the medial femoral circumflex artery. The superior and inferior gluteal arteries supply the hip joint but not the head of femur.The lateral circumflex artery anastomoses with the medial femoral circumflex artery and assists in supplying the head of femur. The obturator artery is an important source of blood supply in children up to about 8 years. It gives rise to the artery of the head of femur which runs in the ligamentum teres and is insufficient to supply the head of femur in adults.

    • This question is part of the following fields:

      • Anatomy
      • Lower Limb
      91.8
      Seconds
  • Question 5 - Which of the following statements is correct regarding the partial pressure of oxygen...

    Incorrect

    • Which of the following statements is correct regarding the partial pressure of oxygen during respiration?

      Your Answer: Exhaled PO 2 < Alveolar PO 2 < Inhaled PO 2

      Correct Answer: Exhaled PO 2 > Alveolar PO 2

      Explanation:

      Because of humidification, inspired PO2 in the airways is less than inhaled PO2. Because of gas exchange, alveolar PO2 is less than inhaled or inspired PO2.Because of mixing with anatomical dead space (air that has not taken part in gas exchange, exhaled PO2 is greater than alveolar O2, and therefore that has relatively higher PO2 on the way out, but is less than inhaled or inspired PO2.Typical values for a resting young healthy male (in kPa) are shown below:-Inhaled air: PO221.2, PCO20.0-Inspired air in airways (after humidification): PO219.9, PCO20.0-Alveolar air (after equilibrium with pulmonary capillaries): PO213.3, PCO25.3-Exhaled air (after mixing with anatomical dead space air): PO215.5, PCO24.3

    • This question is part of the following fields:

      • Physiology
      • Respiratory
      14.3
      Seconds
  • Question 6 - Which of the following virulence factors of E. coli is important for attachment...

    Correct

    • Which of the following virulence factors of E. coli is important for attachment to host epithelial cells in the pathogenesis of urinary tract infections:

      Your Answer: Pili

      Explanation:

      Escherichia coli is the most common cause of urinary tract infection. Uropathic strains are characterised by pili with adhesion proteins that bind to specific receptors on the urinary tract epithelium. The motility of E. coli aids its ability to ascend the urethra into the bladder or ascend the ureter into the kidney.

    • This question is part of the following fields:

      • Microbiology
      • Pathogens
      35.7
      Seconds
  • Question 7 - Which of the following is NOT a heritable risk factor for venous thrombosis:...

    Incorrect

    • Which of the following is NOT a heritable risk factor for venous thrombosis:

      Your Answer: Protein C deficiency

      Correct Answer: Von Willebrand disease

      Explanation:

      Approximately one-third of patients who suffer DVT or PE have an identifiable heritable risk factor, although additional risk factors are usually present when they develop the thrombosis. The history of a spontaneous DVT in a close relative increases an individual’s risk of DVT even if no known genetic predisposition can be identified.

    • This question is part of the following fields:

      • Haematology
      • Pathology
      85.1
      Seconds
  • Question 8 - A patient presents with a rash for a dermatological examination. A flat circumscribed...

    Incorrect

    • A patient presents with a rash for a dermatological examination. A flat circumscribed area of discoloured skin measuring 0.7 cm in diameter is seen on examination.What is the best description of this rash that you have found on examination?

      Your Answer: Plaque

      Correct Answer: Macule

      Explanation:

      A macule is a flat, well circumscribed area of discoloured skin less than 1 cm in diameter with no changes in the thickness or texture of the skin. A vesicle is a visible collection of clear fluid measuring less than 0.5 cm in diameter.A papule is a solid, well circumscribed, skin elevation measuring less than 0.5 cm in diameter. A nodule is a solid, well circumscribed, raised area that lies in or under the skin and measures greater than 0.5 cm in diameter. They are usually painless.A plaque is a palpable skin lesion that is elevated and measures >1cm in diameter.

    • This question is part of the following fields:

      • General Pathology
      • Pathology
      3
      Seconds
  • Question 9 - Which of the following microbes attaches to host cells by its haemagglutinin antigen:...

    Incorrect

    • Which of the following microbes attaches to host cells by its haemagglutinin antigen:

      Your Answer: Streptococcus pneumoniae

      Correct Answer: Influenza virus

      Explanation:

      Hemagglutinin (HA) or Haemagglutinin (BE) is an antigenic glycoprotein found on the surface of the influenza viruses. It is responsible for binding the virus to the cell that is being infected. The name hemagglutinin comes from the protein’s ability to cause red blood cells (erythrocytes) to clump together (agglutinate) in vitro.

    • This question is part of the following fields:

      • Microbiology
      • Principles
      12.7
      Seconds
  • Question 10 - Giemsa-stained blood film microscopy is typically used for the diagnosis of which of...

    Correct

    • Giemsa-stained blood film microscopy is typically used for the diagnosis of which of the following:

      Your Answer: Malaria

      Explanation:

      Giemsa-stained blood film microscopy can be used to identify malarial parasites.

    • This question is part of the following fields:

      • Microbiology
      • Principles
      6
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Anatomy (1/3) 33%
Head And Neck (0/1) 0%
Inflammatory Responses (1/1) 100%
Pathology (1/3) 33%
Abdomen (1/1) 100%
Lower Limb (0/1) 0%
Physiology (0/1) 0%
Respiratory (0/1) 0%
Microbiology (2/3) 67%
Pathogens (1/1) 100%
Haematology (0/1) 0%
General Pathology (0/1) 0%
Principles (1/2) 50%
Passmed