reflexes part 3

Question 1

How is reaction time measured>

Answer 1

• when a person catches a falling object, part of this response is a reflex reaction
• measuring the time taken to catch a falling object can therefore be used to measure a person’s reaction time

Question 2

What is the method for measuirng reaction time?

Answer 2

• suitable scale placed onto the ruler
  
  • which converts the distance dropped by the reular into a reaction time
    *

Question 3

Why are reflexes important?

Answer 3

• reflexes are essential as they avoid the body being harmed, or reduce to the severity of the damage

Question 4

How does the involuntary nature of reflexes increase your chance of survival?

Answer 4

• being involuntary
  
  • decision-making regfions of the brain are not involved
  • therefore the brain is able to deal with more complex responses
  • prevents brain from being overloaded in situations which the response is always the same

Question 5

How are reflexes really fast? How does this increase our chances of survival?

Answer 5

• *
• extremely fast
  
  • reflex arc is very short
  • normallly only involves one or two synapes
  • which are the slowest part of transmission

Question 6

What are the other ways reflexes incease are chances of survival?

Answer 6

• don’t have to be learnt
  
  • present at birth
  • therefore provide immediate protection
• have became everyday action
  
  • such as those that keep us upright
  • and those which control digestion