0
Nerves
Nerves are thread-like structures that form a network of pathways that transmit information from the brain to the body and the body to the brain, in the form of electrical impulses.
1,605 Questions
How does a neuron indicate the strength of a stimulus?
A neuron conveys information about the strength of stimuli by varying the rate in which the stimulus is fired.
What stops muscle stimulation when the motor neuron ceases firing?
Acetylcholinesterase is the enzyme that stops muscle stimulation when the motor neuron ceases firing. This enzyme enables acetyl and choline to release their binding sites.
When does the peak growth period for synapses of the senses to occur?
I've been looking for the answer to this question for a take-home test I'm doing (I haven't been able to find a clear answer either in my textbook or online).. There is a graph in my textbook (The Developing Person: Through the Life Span, 7th ed., Kathleen Berger, pg. 131) that suggests that for audio/visual synapses, development occurs rapidly from birth to about 2 years, and peaks at about 3 months of age.
So, in short, I'm not sure, but I think about 3 months of age.
What minimizes leakage of the electrical current traveling along the axon?
The nodes of Ranvier along myelinated axons in sensory nerve fibers minimize leakage of the nerve impulse electrical signal.
