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Acetylcholine, a well known neurotransmitter, plays a critical synaptic role in the initial formation of memory. Chemical blockage of the acetylcholine receptors makes it harder to learn and remember even in healthy young people. Evidence for it comes from pharmacological studies conducted on human subjects wherein blockage of muscarinic cholinergic receptors by drugs such as scopolamine impaired the encoding of new memories. Conversely, drugs which activated nicotinic receptors enhanced the encoding of new information.
Similarly administration of scopolamine into the hippocampus impaired encoding of spatial memory. It has also been found that administration of drug that increases the level of acetylcholine in Alzheimer's disease (characterised of memory problems) improves memory by inhibiting the action of acetyl cholinesterase, an enzyme that breaks down acetylcholine and reduces its amount. Overall it can be said that decreased acetylcholine in the brain cause problems with memory function.
What are cotyledons? Cotyledons or else seed leaves are structures formed by the embryo of angiosperms to absorb nutrients from the endosperm and to store and transfer these nu
Q. Which is the first (human) heart chamber into which blood enters? Where does the blood go after passing that chamber? What is the name of the valve that separates the compartmen
cellular endosperm diagrammatic view
How can we determine Solutions Solutions are a homogeneous mixture of two or more different substances. This means that the molecules of the dissolved substances (solute) and t
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The left atrium is a thin walled cavity. Most of the wall is smooth. Musculi pectinati are present only in the auricle of the atrium. The interatrial septum separates the cavity of
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What is the other name given to sex chromosomes? Sex chromosomes are also known as allosomes (the other chromosomes that are not sex chromosomes are known as autosomes).
Define Importance of Family and Patient Education - Food Allergy? Remember, involvement of the family and all other relevant caretakers along with the patient is crucial for pr
Please answer the following two questions on Sequence X: 1) DNA sequence databases 1. What is the EMBL-Bank accession number for this sequence (use BLAST)? 2. Which gen
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