B). Using improper body piercing methods
Using improper piercing (and tattooing) methods can lead to serious infection along with not taking proper care of the pierced area.
Answer:
This can be a sign of lymphangitis, an infection that impacts the body's lymph system.
Explanation:
A. A gradual but complete withdrawal from drugs
Answer:
Just like the rest of your body, your brain needs carbohydrates, proteins, fats, vitamins, minerals, and water to function normally. A key part of supporting brain health is eating a wide variety of “brain foods.” When it comes to your brain, foods that are high in the following nutrients come out on top: 1.
Explanation:
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Answer:
1. spontaneously
2. resting potential
3. action potentials
4. pacemaker potentials
5. K+
6. Na+
7. into
8. Ca+
Explanation:
Pacemaker cells (also known as sinoatrial node cells) are cells that generate rhythmic impulses and set the pace for blood pumping in the heart. These cells have the ability to rhythmically depolarize and initiate action potentials. In pacemaker cells, Ca2+ and Na+ levels are higher in the extracellular environment, while K+ concentration is higher intracellularly. The pacemaker action potentials have three phases: 1-depolarization, where membrane potential reaches -40 mV and voltage-gated Ca2+ channels open, 2-repolarization, where voltage-gated Ca2+ channels close and voltage-gated K+ channels open, and finally 3-gradual depolarization, which is caused by the slow influx of Na+ ions.
