How do impulses cross synapses between neurons? * 1. through osmosis
2. by a cell body
3. by a chemical (neurotransmitter)
4. it jumps across

1. breathe deeply from your lower lungs

2. breathe in and try to push the ring outwards.

3. breathe in through your nose and out through your nose and mouth.

4. avoid raising your shoulders as you breathe in

5. relax!

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c. emergency contraception

explanation:

used for after unprotected intercourse