Asked by Fernanda Heredia on May 06, 2024
Verified
Sara is holding Scott's hand during a scary movie.Suddenly she squeezes his hand very hard.When she does this,what will the nerves in Scott's hand do
A) release more GABA
B) send larger action potentials to his central nervous system
C) enter an absolute refractory period
D) start to fire at a faster rate
Action Potentials
Rapid electrical impulses that travel along the neuron's membrane, enabling communication within the nervous system.
GABA
Gamma-Aminobutyric Acid, a neurotransmitter in the brain that inhibits nerve transmission, playing a role in regulating neuronal excitability.
Central Nervous System
The part of the nervous system consisting of the brain and spinal cord, responsible for integrating sensory information and coordinating bodily functions.
- Familiarize oneself with the electrical properties inherent to neurons, particularly resting potential and action potential.
Verified Answer
JL
Jacquelyn LambertMay 09, 2024
Final Answer :
D
Explanation :
Sara's strong squeeze on Scott's hand will likely trigger a "fight or flight" response, causing his nerves to fire at a faster rate. This is due to the release of adrenaline and other stress hormones that increase the excitability of the nervous system in response to a perceived threat. Option A, releasing more GABA, would have the opposite effect and decrease nerve activity. Option B, sending larger action potentials, is not necessarily a response to the squeeze and is not a typical mechanism for nerves to respond to stimulation. Option C, entering an absolute refractory period, also does not accurately reflect the expected response to this situation.
Learning Objectives
- Familiarize oneself with the electrical properties inherent to neurons, particularly resting potential and action potential.