Question Detail

BME 102 HEALTH TECHNOLOGY AND HUMAN SYSTEM: MAN AS A LIVING MACHINE Objective Question

Question

When designing devices for the nervous system, what is a critical design constraint related to the electrical signals involved, and what is required for the devices?
Options
A Signals are strong (volts), requiring low input impedance.
B Signals are microvolts, requiring high input impedance and shielding.
Correct Answer
C Signals are chemical, requiring fluid interfaces.
D Signals are mechanical, requiring motion sensors.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The document specifies under 'Nervous System' design constraints: "Signals are microvolts (the electrical activity being transmitted is incredibly weak and delicate) Devices need high input impedance and shielding to avoid noise."

Hint

Consider the very small magnitude of electrical signals in the nervous system and how that affects device design.

Question Info