Neurotransmitters are released when an action potential reaches the terminal end of the axon, the synaptic knob. This electrochemical signal triggers...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tou...
What hormonal stimulus triggers the onset of labor? What neurotransmitter stimulates muscle contraction? What mechanism releases neurotransmitter from presynaptic neurons? What happens to glucagon when cortisol is high? What stimulates the release of oxytocin?
GABA: Exercise lowers stress levels, which triggers the release of this calming neurotransmitter(神经递质). Frequent boosts of GABA build immunity to stress, enhancing your ability to take on life's challenges. Antibodies(抗体): Both exercise and happiness increase antibody production. Antibodies are...
The release of acetylcholine from parasympathetic nerves triggers their activation, promoting digestive activities. 2 Do adrenergic receptors have a role in respiratory function? Yes, particularly beta-2 receptors, which dilate the airways and improve airflow during stress. 1 How do the mechanisms of...
First, spontaneous activity within neuromata and the release of various neurotransmitters (e.g., noradrenalin, acetylcholine, and epinephrine) during emotional or environmental triggers. Second, stump injury, temperature, circulation and sensitivity to atmospheric or environmental...
"When you eat foods high in sugar, it triggers the release of dopamine, a neurotransmitter that controls the reward and pleasure center in the brain," says Axe. Just like with other drugs, you can build up a tolerance to sugar. Over time, you need to consume larger amounts of sugar ...
Serotonin, a neurotransmitter associated with mood regulation and perception, is also believed to be released in increased amounts during the dying process.7 Elevated serotonin levels can lead to altered states of consciousness, including visual and auditory hallucinations. This is the me...
Chemical synapses are much more common than electrical synapses and are therefore the focus of most research on synapses. When an action potential, or electrical signal, reaches the end of a neuron, it triggers the release of neurotransmitters into the synapse. These neurotransmitters then bind to...
Depending upon what kind of neurotransmitter it is, the message might be excitatory ("let's do this!"), inhibitory ("stop!") or modulatory, a more complicated message that triggers additional neurotransmitters or other processes. The result? The neurotransmitter tells you to scratch your arm, ...
Dopamine addiction can also take the form of compulsive behaviors, such as shopping or sex. These behaviors can create a pleasurable feeling that triggers the release of dopamine in the brain. Over time, the brain may become dependent on these behaviors to maintain the release of dopamine, lead...