What is the all or none response pattern a characteristic of?
The all-or-none law is a principle that states that the strength of a response of a nerve cell or muscle fiber is not dependent upon the strength of the stimulus. Essentially, there will either be a full response or there will be no response at all for an individual neuron or muscle fiber.
What is the all or none response pattern?
an all-or- none response pattern is characteristic of the. initiation of neural impulses. the spatial junctions where impulses are chemically transmitted from one neuron to another are called. synapses. neurotransmiters are chemical messengers that travel across the.
What is the all or none response quizlet?
all-or-none-response. The phenomenon that a muscle fiber will only contract to its full extent. threshold stimulus. The minimal strength of a stimulus to cause a contraction.
Why is the action potential an all or none response quizlet?
The all-or-none law is the principle that the strength by which a nerve or muscle fiber responds to a stimulus is independent of the strength of the stimulus. If the stimulus exceeds the threshold potential, the nerve or muscle fiber will give a complete response; otherwise, there is no response.
Why are action potentials all or none?
The action potential is said to be all-or-nothing because it occurs only for sufficiently large depolarizing stimuli, and because its form is largely independent of the stimulus for suprathreshold stimuli. In some neurons, a single action potential can be induced by the offset of a hyperpolarizing stimulus (Fig. 1b).
What is a synapse?
The synapse, rather, is that small pocket of space between two cells, where they can pass messages to communicate. A single neuron may contain thousands of synapses. In fact, one type of neuron called the Purkinje cell, found in the brain’s cerebellum, may have as many as one hundred thousand synapses.