Question

9. 1 0 . 100% Charts SmartArt Review Paragraph Styles AABaCcDo EE AABaCcDoEE AABaCcDDEE AaB Subtle Refere... Intense Refer... Book Title List P Handout Unit One-Vital Signs For each vital sign below, answer the corresponding questions. Use internet and text resources to answer the questions. Heart Rate: 1. What are the normal ranges (with unit) 2. What could occur in the human body to make the HR higher? 3. What could occur in the human body to make the HR lower? 4. What is the difference between a heart rate and a pulse? 5. Specifically what vessels in the arms and neck are typically used to measure HR? 6. What is your current HR, If outside the range why do you think this might be? 7. Michael Phelps has a resting heart rate of 40 bpm, why do you think his heart rate might be different from the average persons?

Answer 1

1.The normal heart rate is 60 to 100 beats per minute (bpm) in an adult.

(A range above the normal range is called as tachycardia and a range below the normal range is called bradycardia. )

From birth to a month it ranges between 70 to 190bpm

In infants ranging from 80 to 160bpm

In toddler:80 to 130bpm

Preschoolers:80 to 120bpm

Children who are between 5 to 6 year ranges between 75 to 115bpm

Children from 7 to 8 years ranges between 70 to 110bpm

2.The human body is controlled by the nervous system .When an individual is in stress ,anger ,excitement, exercise, anything which can trigger them leads to stimulation of the sympathetic nervous system. This releases the catecholamines (which consists of epinephrine and norepinephrine or adrenaline and noradrenaline) which increases the contraction of heart and thus increasing the heart rate.

3.When an individual is in rest ,relaxation practice, meditation or any activity which can make one calm leads to stimulation of the parasympathetic nervous system. This releases the acetylcholine. This has the ability to relax the heart contraction and decrease the heart rate.

4.The main difference between heartrate and pulse are

The contraction of heart is called as heart rate whereas the pressure (contraction) exerted by it leads to the blood flow through the capillaries of the blood vessels causing pulse.

5.The carotid artery is used to check in the neck and radial artery in the arms to check heart rate.

6.An average adult will have HR between 60 to 100bpm.If it is outside the range it could be because of exercise ,stress,medication, medical conditions, etc.,

7.A resting rate of 40 bom can occur when the person is an athlete or whi involves in greater physical activity daily.It is different from others because in athletes because of regular activities it increases the size of heart and thus keeping the resting heart rate at the lowest around 40bpm .This is normal for an athlete.