Question

to measure the emg signal of muscle activation, you can think of the depolarizing cell action potential direction as the direction down your forearm toward your finger. state where you think is a good place to put the sensor stickers such that you can measure a potential difference when the action potential is moving down your forearm (include a sketch). explain why you choose to arrange the sensors like that.

Answer 1

To measure the EMG signal of muscle activation, you should place the sensor stickers along the forearm, in a direction towards the finger. This arrangement allows for capturing the depolarization wave as it travels and measuring the potential difference between adjacent sensors.

Step-by-step explanation:

A good place to put the sensor stickers to measure the EMG signal of muscle activation is along the forearm, in a direction towards the finger. By placing the sensors in this position, you can measure a potential difference when the action potential is moving down the forearm.

The sensors should be arranged in a line along the length of the forearm, with each sensor placed a short distance apart.

When a muscle is activated, an action potential is generated and travels along the muscle fibers. This action potential causes the depolarization of adjacent muscle cells, resulting in a depolarization wave.

By placing the sensors along the forearm in the direction of the finger, you can capture this depolarization wave as it travels.

This arrangement allows you to measure the potential difference between adjacent sensors and observe the propagation of the depolarization wave. The greater the difference in potential between two adjacent sensors, the stronger the muscle activation signal is.