Question

how did you save clark? the following list is not in the correct order. the first two events are given to you as a starting point. drag and drop the remaining events to identify the sequence of events showing how hypertonic saline restored equilibrium and stopped the seizures in clarks brain. 1. seizures 2. administer hypertonic saline 3. drop here net movement of free water into vessel 4. drop here seizures stopped 5. drop here decrease in neuron firing rate 6. drop here decrease in matrix pressure 7. drop here increase in blood sodium concentration

Explanation:

Step1: Hypertonic saline effect on sodium

When hypertonic saline is administered, it increases blood sodium concentration. So the third - event is "Increase in blood sodium concentration".

Step2: Osmotic effect on water

An increase in blood sodium concentration creates an osmotic gradient, causing net movement of free water into the vessel. So the fourth - event is "Net movement of free water into vessel".

Step3: Pressure change

The movement of water into the vessel leads to a decrease in matrix pressure. So the fifth - event is "Decrease in matrix pressure".

Step4: Neuron firing rate change

The change in pressure affects neuron firing rate, causing a decrease in neuron firing rate. So the sixth - event is "Decrease in neuron firing rate".

Step5: Seizure stop

A decrease in neuron firing rate stops the seizures. So the seventh - event is "Seizures stopped".

Answer:

1. Increase in blood sodium concentration
2. Net movement of free water into vessel
3. Decrease in matrix pressure
4. Decrease in neuron firing rate
5. Seizures stopped