Amygdala
The refractory period for a membrane is the time it takes for the membrane to reset and be able to respond to another stimulus. During this period, the membrane is temporarily unable to respond to additional stimuli. This impacts the ability of the membrane to rapidly and continuously transmit signals, as it needs time to recover before it can respond again.
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During the action potential process, the absolute refractory period is when the neuron cannot respond to any stimulus, while the relative refractory period is when it can respond to a stronger stimulus. The absolute refractory period comes before the relative refractory period in the action potential process.
During the second exposure to a pathogen, the immune system can mount a quicker and more targeted response due to immunological memory. This is because the immune system has already encountered the pathogen before and has memory cells ready to recognize and respond more efficiently to the pathogen. This results in a faster and more effective clearance of the pathogen from the body.
The atrioventricular node (AV node) acts as a gatekeeper, slowing down the electrical signal coming from the atria before allowing it to pass to the ventricles. This delay ensures that the ventricles have enough time to fill with blood before contracting.
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"Respond, not react" means taking the time to pause and consider before taking action in a given situation, rather than impulsively reacting based on emotions or instincts. It involves thoughtful, intentional responses rather than knee-jerk reactions.
take a few deep breaths
At the AV node, the impulse is delayed for about 0.1s, allowing the atria to respond and complete their contraction before the ventricles contract.
To help your 7-year-old improve their impulse control, you can teach them strategies such as taking deep breaths, counting to 10 before reacting, and practicing patience. Encourage them to think before acting and praise them for making good choices. Consistent reminders and positive reinforcement can also be effective in developing their self-control skills.
Thirty compressions and two breaths per cycle.
When feeling angry, take deep breaths and pause before reacting. Try to understand the source of your anger and express your feelings calmly and assertively. Find healthy outlets like exercise or talking to a trusted friend to manage your emotions.
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Adult: Tip head & check for breathing. If no breathing, give 2 breaths & start CPR 30 compressions/2 breaths. Infant & Child: Tip head & check for breathing. If no breathing, give 2 breaths. Check pulse (Infant brachial, child carotid). If no pulse start CPR 30 compressions/2 breaths.
Take deep breaths, get a good nights sleep, do something relaxing before your physical like reading or listening to music.
check for your safety