In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
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Question: Question: When centrifuging human peripheral blood in a density gradient in Ficoll: 
 Options:  <1> The mononuclear cells float on the Ficoll. <2> The lymphocytes remain in the background. <3> The erythrocytes float on the Ficoll. <4> The granulocytes float on the Ficoll. <5> The monocytes remain in the background.

Answer: 1


Question: Question: The anterior pituitary gland: 
 Options:  <1> It is part of the hypothalamus. <2> It is regulated hormonally. <3> It communicates with the neurohypophysis. <4> It releases ADH and oxytocin. <5> It is formed by neurons.

Answer: 2


Question: Question: Which of the following structures are in direct contact with the oval window on each of its sides? 
 Options:  <1> The eardrum and the tympanic scale. <2> The stirrup and tympanic scale. <3> The hammer and the vestibular scale <4> The anvil and the tympanic scale. <5> The abutment and the vestibular scale.

Answer:
5