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.
Answer:
Life-span perspective.
Explanation:
Life span perspective may be defined as a type of development of human beings that shows the multiple frameworks of an individual. This is one of the most important perspective use in the study of psychology.
This perspective includes the all the different factors like genetics, gender, school, environment and society can influence the adolescents. These factors can influence the self esteem of the adolescents positively or negatively. The genetic factors is important to determine the physical influence of individual.
Thus, the answer is life span perspective.
Answer:
helping the community with there health
Explanation:
hope this helps
<3
The answer is to your question is False
I think the answer would be insecurity as he feels inferior to his peers in a specific area. He feels ashamed/embarrassed that he may not be as smart.
