Answered: В АВ CD Time At the moment pointed to…

В АВ CD Time At the moment pointed to by the arrow the ion [ Select ] is [ Select ] the pacemaker cell driven by [ Select ] Membrane potential (mv)

Biomedical Instrumentation Systems

1st Edition

ISBN:9781133478294

Author:Chatterjee

Publisher:Chatterjee

Chapter8: Defibrillators And Pacemakers

Section: Chapter Questions

Problem 11P

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

Question

First select box, Options are chloride/protons/potassium/calcium/sodium/

Second select box, Options are exiting/entering

Third slect box, Options are charge/concentration/charge and concentration

A
АВ CD
Time
At the moment pointed to by the arrow the ion
[ Select ]
is
[ Select ]
the pacemaker cell driven by [ Select ]
Membrane
potential (mv)

Expert Solution

Step 1

The heart is made up of cardiac muscle. It contains network of specialized cardiac muscle fibers called autorhythmic fibers because they are self-excitable. They generally generate action potentials that trigger heart contractions. Cardiac action potentials normally begin in the sinoatrial node (SA node), which act as the heart's pacemaker, initiating cardiac action potentials that causes contraction of the heart.

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