Asked by Jacqueline Wilson on May 22, 2024
Verified
Bradley is deeply relaxed and many of his muscles are not moving at all.What does this suggest about many of Bradley's motor neurons
A) They have a voltage of +70 millivolts.
B) They have a voltage of -70 millivolts.
C) They are in a relative refractory period.
D) They are in an absolute refractory period.
Motor Neurons
Nerve cells forming part of a pathway along which impulses pass from the brain or spinal cord to a muscle or gland.
Absolute Refractory Period
A time interval after an action potential during which another action potential cannot be initiated, regardless of the strength of the stimulus.
Millivolts
A unit of electric potential equal to one thousandth of a volt, commonly used in measuring the strength of electrical signals.
- Gain an understanding of the electrical attributes of neurons, encompassing resting potential and action potential.
Verified Answer
NC
Narissara ChaiyakijMay 25, 2024
Final Answer :
B
Explanation :
Bradley's deep relaxation suggests that many of his motor neurons are not firing, which would correspond to a resting potential of -70 millivolts.
Learning Objectives
- Gain an understanding of the electrical attributes of neurons, encompassing resting potential and action potential.