After a few scientific studies, it is known that a concealed wound settles faster than an
uncovered one. Since
the skin, though it closes off the wound and guards it
from impurities, it actually delays the development of first-hand skin cells to
conceal the wound.
Cell are important to the body because cell are the building blocks of life that help the human body function ex muscle, Skelton eg
You dont have to worry about wat others think of you. you should make sure you look good for yourself and that your healthy
Aerobic energy comes from the burning of carbohydrates.
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.
