Answered: If ACh channels are opened on a muscle…

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter7: The Peripheral Nervous System: Efferent Division

Section: Chapter Questions

Problem 7RE

See similar textbooks

Related questions

Question

If ACh channels are opened on a muscle fiber that is held at +55 mV, which ion moves predominantly? In which direction does this ion move across the muscle cell membrane?

Expert Solution

Step 1 Introduction

In general, nerves and muscles generate and transfer electrical signals and these excited signals are used to carry out basic functions.

excitable cells have a huge number of voltage gated ion channels, and they use action potentials to initiate the responses. Examples of excitable cells are nerves, skeletal muscles, heart, etc.

The resting potential of a mammalian neuron is around -70mV. At the input of a signal, voltage gated ion channels open of Na+, Cl- or Ca2+. This leads to a graded potential at the dendrites or the body of the cell.

Step by step

Solved in 2 steps

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.

Similar questions