A point of concurrency is a place where three or more, but at least three lines, rays, segments or planes intersect in one spot. If they do, then those lines are considered concurrent, or the the rays are considered concurrent. So let's look at two examples here.
Infant blood pressure varies depending on age and whether the baby is sleeping, awake, crying, etc. Here are some general guidelines: Less than 6 months - 85 (+/-10) over 46 (+/-9) Over 6 months - 93 (+/-14) over 55 (+/-9) By 12 months - 94 (+/-11) over 56 (+/-8) It is possible for infants to develop hypertension. The symptoms include feeding problems, lethargy, seizures, and mottling of the skin.
In newborn infants up to one year old, 100 to 160 bpm is normal. Children between one and 10 years old range from 70 to 120 bpm. After the age of 10, up to adults and seniors, 60 to 100 bpm are considered normal, often centered on 72 as a benchmark for healthy, resting adults.