TASK DEFINITION: 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'.
PROBLEM: Question: The Merkel cells are: 
 Options:  <1> Secretors of neuropeptides and sensory. <2> Secretors of mucus. <3> Migratory <4> From Schwann. <5> Fibroblasts.

SOLUTION: 1

PROBLEM: Question: One of the following types of transport through membranes does NOT exist: 
 Options:  <1> Ion transport facilitated by ionophore (against electrochemical gradient). <2> Facilitated diffusion (in favor of electrochemical gradient) <3> Primary active transport (against electrochemical gradient). <4> Ionic channel (in favor of electrochemical gradient). <5> Simple diffusion (in favor of concentration gradient).

SOLUTION: 1

PROBLEM: Question: The cells of the sinus node present: 
 Options:  <1> Stable membrane potential. <2> Contractile capacity <3> Depolarization faster than Purkinje fibers. <4> Depolarization mediated by Ca2 + channels. <5> Long plateau.

SOLUTION:
4