Quiz: Test For Medical Students

28 Questions | Total Attempts: 327

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Quiz: Test For Medical Students

Below is a Test for medical students. It is ideal for those students that are reading up for their final exams and need a refresher on the topics they have covered in class. Do give this quiz a try and get an idea of which topics you need to put more effort on or research more on. All the best!


Questions and Answers
  • 1. 
    A 22 year old girl complained of pain in the foot and swelling of the first metatarsal base for 2 weeks after being pricked by a thorn during a hike. This had caused her to limp and she had to visit her family physician. On physical examination which of the following lymph nodes are most likely to be enlarged and palpable?
    • A. 

      Popliteal

    • B. 

      Inguinal

    • C. 

      Pre aortic

    • D. 

      Para aortic

    • E. 

      Lumbar

  • 2. 
    A 32 year old skier visited his family physician for pain and persistent numbness along the plantar aspect of the foot. New ski boots may have been the cause of the problem, and physical exam was unremarkable except for diminished sharp/dull and two point discrimination in the sole. Tinel’s was positive over the tarsal tunnel, radiographs were normal, and electromyography and nerve conduction velocity revealed a problem in which of the following nerves?
    • A. 

      Saphenous nerve

    • B. 

      Tibial nerve

    • C. 

      Common Fibular nerve

    • D. 

      Sural nerve

    • E. 

      Femoral nerve

  • 3. 
    Which is the only leukocyte that, after entering the connective tissue from the bloodstream, can re-enter the bloodstream?
    • A. 

      Lymphocyte

    • B. 

      Neutrophil

    • C. 

      Monocyte

    • D. 

      Basophil

    • E. 

      Thrombocyte

  • 4. 
    Which of the following are abundant in bone marrow stroma?
    • A. 

      Skeletal muscle cells

    • B. 

      T lymphocytes

    • C. 

      Macrophages

    • D. 

      Smooth muscle cells

    • E. 

      Platelets

  • 5. 
    Which of the following would be supporting evidence that a patient’s complaint of tiredness has an autoimmune basis?
    • A. 

      Low levels of anti antibody

    • B. 

      Suicidal thoughts

    • C. 

      A past history of tiredness

    • D. 

      A family history of systemic lupus

    • E. 

      Thyroid gland is palpable

  • 6. 
    A 52 year old male drinks alcohol excessively. You pose the CAGE questions to him to determine if he may have a drinking problem. Which single question from the CAGE questions may on its own be indicative that he is physically dependent on alcohol?
    • A. 

      C (Cut down)

    • B. 

      A (Angry)

    • C. 

      G (Guilty)

    • D. 

      E (Eye opener)

  • 7. 
    What process is involved in the generation of the membrane potential?
    • A. 

      The exit of sodium out of the cell against its concentration gradient through Na/K APT-ase

    • B. 

      The entrance of potassium in the cell against its concentration gradient through Na/K APT-ase

    • C. 

      The variation of concentration of ions chloride outside the cell

    • D. 

      The passage of potassium in and out the cell through potassium leak channels

    • E. 

      The entrance of sodium inside the cell at the synapse level through ligand gated sodium channels

  • 8. 
    An entrance of sodium inside the cell at the synapse level through ligand gated sodium channels will generate:
    • A. 

      A membrane potential

    • B. 

      An excitatory post-synaptic potential

    • C. 

      An inhibitory post-synaptic potential

    • D. 

      An action potential if the concentration of sodium outside the cell is high enough

    • E. 

      Nothing

  • 9. 
    What process underlies the refractory period?
    • A. 

      The delayed reactivity of voltage-dependant gated potassium channels

    • B. 

      The slow functioning of Na/K ATP-ase

    • C. 

      The absence of graded gradient

    • D. 

      The transient inactivation of ligand gated sodium channels

    • E. 

      The transient inactivation of voltage-dependant gated sodium channels

  • 10. 
    One of your patients was a mechanic who worked on automobile exhaust     systems exclusively. He came into your clinic drowsy and with pink cheeks.     He claimed that he often fainted when he exerted himself. Laboratory data show a remarkably increased carboxyhemoglobin level in the blood. The best     explanation for this finding is that carbon monoxide
    • A. 

      Increases the hydrogen ion concentration causing oxyhemoglobin to precipitate

    • B. 

      Changes the valence state of iron in hemoglobin

    • C. 

      Competitively displaces oxygen from oxyhemoglobin.

    • D. 

      Converts myoglobin to carboxyhemoglobin at a rapid rate

    • E. 

      Prevents transfer of oxygen across the alveolar membranes

  • 11. 
    In an experiment you want to shorten the duration of a skeletal muscle contraction. There are different possibilities to achieve this goal. One is:
    • A. 

      To block the Ca2+ ATPase activity of cell membrane

    • B. 

      To block the Ca2+ ATPase activity of sarcoplasmic membrane

    • C. 

      To increase Ca2+ entry through DHP receptors

    • D. 

      To increase Ca2+ release through ryanodin receptors

    • E. 

      To increase the activity of Ca2+/3Na+ exchanger

  • 12. 
    Which form of the following contractions is typical for skeletal but not for cardiac muscle?
    • A. 

      Isotonic contraction

    • B. 

      Isometric contraction

    • C. 

      Single twitches

    • D. 

      Fused twitches

  • 13. 
     A young quadriplegic patient (secondary to spinal cord injury) presents with hypertension, profuse sweating, and other sympathetic signs.  A nurse notes that his catheter is dirty and replaces it with a sterile one.  Pulse examination reveals bradycardia.  Abdominal MRI is normal. Do you suspect?
    • A. 

      Raynaud syndrome

    • B. 

      Horner’s syndrome

    • C. 

      Pheochromocytoma

    • D. 

      Autonomic dysreflexia

    • E. 

      Myasthenia gravis

  • 14. 
    In response to the sight of food it is common to salivate.  The preganglionic fibers that innervate the parotid gland arise from the?
    • A. 

      Glossopharnygeal nerve

    • B. 

      Facial nerve

    • C. 

      Tympanic nerve

    • D. 

      Vagus nerve

    • E. 

      Oculomotor nerve

  • 15. 
    The vasodilation associated with erection is mediated by which of the following?
    • A. 

      A neurotransmitter packed in vesicles

    • B. 

      A neurotransmitter that works via metabatropic receptors

    • C. 

      A retrograde neurotransmitter

    • D. 

      A gaseous neurotransmitter

    • E. 

      The major excitatory neurotransmitter in the CNS

    • F. 

      More than one above

    • G. 

      None of the above

  • 16. 
    Which of the following compounds would be effective in relaxing skeletal muscle via a post-synaptic mechanism at the neuromuscular junction?
    • A. 

      Glutamate agonist

    • B. 

      Selective serotonin reuptake pump inhibitor

    • C. 

      Curare

    • D. 

      Strychnine

    • E. 

      Botulinum toxin

  • 17. 
    You are asked to perform a general physical exam on a young boy who suffered a bicycle accident two months previously.  Sensory testing (pinprick and vibration) is normal on both upper and lower limbs. Cranial nerve testing is unremarkable as well.  Left side deep tendon reflexes are normal but right side patellar and ankle reflexes are elevated.  What other signs might you expect in such a patient?
    • A. 

      Positive babinski reflex

    • B. 

      Negative babinski reflex

    • C. 

      Muscle atrophy

    • D. 

      Muscle fasiculations

    • E. 

      Loss of tone

  • 18. 
    Ectopia Cordis or Pentalogy of Cantrell is a congenital malformation of the anterior body wall that includes a defect of the lower sternum, a deficient anterior diaphragm, and a heart that lies outside the chest. This condition is primarily a defect in what embryological process?
    • A. 

      Formation of the intraembryonic coelom

    • B. 

      Lateral folding

    • C. 

      Formation of the intermediate mesoderm

    • D. 

      Longitudinal folding

    • E. 

      Formation of the head fold

  • 19. 
    Through which blood vessel does the most oxygenated blood flow to supply the fetus?
    • A. 

      Umbilical artery

    • B. 

      Pulmonary artery

    • C. 

      Aorta

    • D. 

      Femoral artery

    • E. 

      Internal carotid artery

  • 20. 
    During Stage 3 of labor, the placenta separates at which layer from the uterus?
    • A. 

      Spongy layer of the decidua basalis

    • B. 

      At the chorionic plate

    • C. 

      Between the chorion and the amnion

    • D. 

      Between the smooth chorion (chorion leave) and the decidua parietalis

    • E. 

      At the umbilical cord

  • 21. 
    Nerve tracts running through the caudal medulla develop ventral to the sulcus limitans and eventually form the pyramids. Based on the position of their embryological development, the functional association of the pyramids is
    • A. 

      Somatic sensory

    • B. 

      Visceral sensory

    • C. 

      Special sensory

    • D. 

      Motor

    • E. 

      Sympathetic

  • 22. 
    Which of the following is a derivative of the epaxial musculature?
    • A. 

      Rectus abdominis

    • B. 

      Pectoralis major

    • C. 

      Sternocleidomastoid

    • D. 

      Inner intercostal

    • E. 

      Rectus capitis posterior minor

  • 23. 
    Dr. Johanessen 18) You have erythrocytes soaking in two different solutions. The first solution is a 300 mosm\L Urea solution (urea has an osmotic coeffiecient of 0) . The second solution is a 300 mosm\L NaCl solution (NaCl has an osmotic coeffiecient of 1). What will happen to the cells in each of these solutions after equilibration?   Cells in Urea Solution:                               Cells in NaCl solution:
    • A. 

      swell swell

    • B. 

      swell shrink

    • C. 

      shrink swell

    • D. 

      shrink shrink

    • E. 

      no change swell

    • F. 

      no change shrink

    • G. 

      swell no change

    • H. 

      shrink no change

  • 24. 
    1 L of 12 g/L inulin and 100 ml of 10 g/L antipyrine are given to a patient intravenously.  Two hours later a blood sample is taken and the concentration of inulin and antipyrine in the plasma are both 1 g/L.  Given the patient has a hematocrit of 30% and there is no lose of the indicators in their urine, what is the patient’s extracellular fluid volume?
    • A. 

      1.0 L

    • B. 

      5.0 L

    • C. 

      10.0 L

    • D. 

      12.0 L

  • 25. 
    Select the diagram with the dotted line that represents the change in fluid volume that will occur as a result of drinking 1 gallon of pure water in 20 minutes without urinating.
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D