Asked by Emily Tudman on May 17, 2024
Verified
A stimulus either causes an action potential or it doesn't. This is called ________.
A) an all-or-none response
B) a graded response
C) a latent period response
D) a relative refractory response
E) a local response
All-Or-None Response
A principle that states that nerve or muscle fibers respond to stimuli at their threshold with a complete response or not at all.
Stimulus
Anything that can invoke a physiological response or reaction from an organism or a cell.
- Describe the dynamics and features of action potentials, emphasizing their sequences (depolarization, repolarization, hyperpolarization) and the notion of the all-or-none principle.
Verified Answer
SG
Salma GhazyMay 19, 2024
Final Answer :
A
Explanation :
An all-or-none response refers to the principle that once a stimulus reaches a threshold, an action potential is triggered in a neuron. If the threshold is not reached, no action potential occurs, hence the "all-or-none" terminology.
Learning Objectives
- Describe the dynamics and features of action potentials, emphasizing their sequences (depolarization, repolarization, hyperpolarization) and the notion of the all-or-none principle.
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