Excitability! cha cha!
The term that does not belong is "action potential." While excitability, response to a stimulus, and contractility are all related to muscle function and the ability of muscle fibers to react to stimuli, an action potential refers specifically to the electrical impulse that triggers these processes.
Any stimulus below the neuron's threshold potential will not result in a response, as it is not strong enough to generate an action potential. Neurons require a minimum level of stimulus intensity to reach the threshold potential and fire an action potential.
Excitability
Contractility is the ability of a muscle to shorten in response to a stimulus.
The absolute refractory period is the time when a neuron cannot generate another action potential, regardless of the stimulus strength. The relative refractory period is the time when a neuron can generate another action potential, but only with a stronger stimulus. These periods help regulate neuronal excitability by ensuring that neurons fire in a controlled manner and prevent excessive firing.
A response is always triggered by a stimulus. One example is in a neuron (nerve cell). Once a sensory stimulus is witnessed (a stimulus from one of the 5 senses), the cell hits an action potential, and the response is carried out. Simply put: A human eye is closed. Once the eye opens thousands of sensors in the eye pick up the photons bouncing off all objects (stimulus), and the human is able to see (response).
A stimulus is an external event that triggers a response in an organism. A response is the reaction or behavior that an organism exhibits as a result of a stimulus. In short, a stimulus is the input, while a response is the output.
Local responce is a small change in membrane potential caused by a subthreshold stimulus.
A response caused by a neutral stimulus is known as a conditioned response. This occurs when the neutral stimulus becomes associated with a unconditioned stimulus through conditioning, leading to a learned response.
neuromuscular efficiency neuromuscular efficiency
A stimulus comes first before a response. A stimulus is any event or situation that evokes a response from an organism. The response is the reaction or behavior that is produced in reaction to the stimulus.
Evoked potential-- A test of nerve response that uses electrodes placed on the scalp to measure brain reaction to a stimulus such as a touch.