Answer:
<h2>Excitatory postsynaptic potential (EPSP)
</h2><h2>a) it brings the postsynaptic membrane potential closer or nearer to threshold </h2><h2>b) it depolarizes the postsynaptic membrane ; and
</h2><h2>
c) it results from the movement of Na+ ions into postsynaptic cell .
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</h2><h2>Inhibitory postsynaptic potential (IPSP): </h2><h2>a) it moves the postsynaptic membrane potential farther away from threshold .</h2><h2>
b) it hyper-polarizes the postsynaptic membrane ;
</h2><h2>
c) it results from the movement of K+ ions out of the postsynaptic cell
</h2><h2>
In both cases: it is a graded potential in both.
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Explanation:
Excitatory postsynaptic potentials are excitatory because they make the postsynaptic neuron to generate an action potential by depolarizing the membrane and bringing the membrane potential closer to threshold where new action can generate .It happens by opening ligand-gated Na+ channels in the postsynaptic membrane, which then allows Na+ ions to enter the cell.
Inhibitory postsynaptic potentials make it more difficult for the postsynaptic neuron to produce an action potential by hyper-polarizing the membrane and moving the membrane potential farther from threshold. This occurs by opening ligand-gated K+ channels, which allows K+ ions to move out of the cell.
Regardless of as they are excitatory or inhibitory, all postsynaptic potentials are graded. and by this , its magnitude decreases with distance from the synapse along with the cell body.
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Hope this helped. :)</span>
A situation wherein a premature infant in the neonatal
intensive care unit exhibits worsening respiratory distress and is noted to
have abdominal distention, absent bowel sounds, and frequent diarrhea stools
that are positive for hemoccult, the diagnosis would be most likely to
correlate with the symptoms is called the necrotizing enterocolitis. Feeding
intolerance with abdominal distention tenderness and bloody or hemoccult-positive
stools are needed when there are observations in the development of NEC in the premature
newborn. Existing dilemma of NEC may also include diarrhea and worsening of
respiratory distress. Noted as well is the decrease or absence of bowel sounds.
Inflammation of the stomach of the child and digestive tract which usually
triggers womiting, diarrhea and fever are effects of the rotavirus. On the
other hand, adults are seen with garamycin-resistant bacteria.