What are neurons? A neuron that synapses in the adrenal medulla is a ___ neuron, and releases the neurotransmitter ___. (a) preganglionic; acetylcholine (ACh). (b) postganglionic; norepinephrine (NE). (c) preganglionic; norepinephrine ...
The branchlike structures on the heads of neurons that receive signals from other neurons are called ___. a. dendrites b. myelin sheaths c. axon hillocks d. synapses Each neuron in the brain can potentially synapse with up to ___ other neuron(s...
For the nerve signal to continue, acetylcholine must diffuse to another nearby neuron or muscle cell, where it will bind and activate a receptor protein. There are two main types of cholinergic receptors, nicotinic and muscarinic. Nicotinic receptors are located at synapses between two neurons and...
The complex reflex arc is composed by many neurons besides the simple reflex arc is composed by two neurons, each neuron also may simultaneously accept many excitability synapse and the suppressant synapse functions.Moreover after these two kind of synapses electric potential intensity contrast, als[...
neuron, whereas STF is caused by influx of calcium into the axon terminal after spike generation, which increases the release probability of neurotransmitters. STP has been found in various cortical regions and exhibits great diversity in properties. Synapses in different cortical areas can have ...
Morphological studies showed that KNDY neurons are connected with each other via axo-somatic synapses and express NK3R and KOR, suggesting that neurokinin-B and dynorphin-A may act as retro-control on KNDy neurons to regulate kisspeptin secretion, which in turn would drive the secretion of GnRH...
It is generally thought that under basal conditions, neurons produce ATP mainly through mitochondrial oxidative phosphorylation (OXPHOS), and glycolytic activity only predominates when neurons are activated and need to meet higher energy demands. However, it remains unknown whether there are differences in...
For starters,they showed that neurons can prune out(修剪)some synapses,at least in the lab.But they(47)___the same things happens every day,naturally,in our brains-probably during(48)___.So they set up a painstaking experiment,in which an assistant scientist collected 6,920synapses from ...
Which branch of the autonomic nervous system has longer preganglionic neurons? Which of the following carry information from the senses to the brain, activate muscles and glands, and form vast networks that produce intelligence and consciousness? \\ a. neurons b. g...
Thus, 4-AP or signal it generates at intermediate steps of pathway requires the target on plasma mem- brane, the other intracellular compartment or cytosol. Endogenous glutamate release stimulated by 4-AP in Ca2+-free conditions. Neurons and plate- lets have cytosolic and secretable pools ...