Answer:
Amy E French, MD MSc
Department of Paediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario
Susanne M Benseler, MD FRCPC
Department of Paediatrics, Division of Paediatric Rheumatology, The Hospital for Sick Children, University of Toronto, Toronto, Ontario
Catherine S Birken, MD MSc FRCPC
Department of Paediatrics, Division of Paediatric Medicine, The Hospital for Sick Children, University of Toronto, Toronto, Ontario
Answer:
The answer to the question: The movement of ions through their channels require a discharge of the capacitance, is, true.
Explanation:
In order for cells, muscular and neuronal, to perform their activities, they need to generate action potentials, that will permit these activities. In order for an action potential to happen, a cell´s membrance must be charged, or rather, its polarity must be changed, so that the cell can be charged and then fire. Usually, cells remain in a resting membrane state, in which, the extracellular matrix remains positive, while the intracellular space remains positive, due to ion, and anion presence in either. In order for the action potential to happen, these polarities are reversed through a series of steps in which ions, particularly potassium and sodium, sometimes calcium, will enter and exit the cell´s membrane to change this polarity. But in order for this process to take place, first a current, or stimulation, must motivate the cell to start the process. The capacitance is the capability of a cell to be ready to be activated or de-activated when stimulated, meaning, to be charged and discharged, when necessary. In order for this capacitance to permit the process of action potential formation, it needs to be discharged first, and this is done through the stimulus, which orders the cell´s membrane to initiate depolarization by opening up the ion channels. This is why the answer is true.
The physical or structural character of a dose is the dosage form (DF).
Answer: A. C. D. E. G.
Explanation:
In the severe cases of zinc deficiency results in the loss of hair, impotence or delayed sexual maturation. Zinc is the cofactor for many enzymes thus it's deficiency can lead to the non functioning and inefficiency of these enzymes.
Acute deficiency involves loss of hunger, low blood count, weak bones, wound healing becomes slow and delayed growth.
Answer:
A decrease of cardiac output and evidence of tissue hypoxia in the presence of adequate intravascular volume. A nurse educator is teaching students the types of shock and associated causes.
Explanation:
