Reflex tester – Online app to test your refex action speed

Reflex tester – Online app to test your refex action speed

A reflex action, differently known as a reflex, is an involuntary and nearly instantaneous movement in response to a stimulus.

for example If your finger touches a hot object, then you will pull back your hand.

Reflex Action is:

An inborn and rapid response to a stimulus from the external environment.

An automatic response that occurs veryrapidly & without conscious control.

An involuntary action that involve thecontraction of the skeleton muscles & thespinal cord only.

A reflex arc is a neural pathway that controls an action reflex.

TYPES OF REFLEX ACTION

2 types of reflex action:

a) CRANIAL REFLEX – brought aboutby nerve impulses travelling through themedulla oblongata.

b) SPINAL REFLEX– broughtimpulses travelling through the spinalcord.

There is a pretty nice Online application to check the speed of your reflex action.

Check Reflex tester.

Other Sources:

Reflex action    Wiki   Reflex Arc

What is Sudan 4 and What are its effects?

Recently, in Kerala few Curry powder producing companies were accused of using Food Coloring Dye called Sudan IV.  Read the following to know more about the use of this dangerous carcinogenic substance and its harmful effects on human body

What is Sudan 4:
Sudan IV (C24H20N4O) is a lysochrome  (fat-soluble dye) diazo dye used for the staining of lipids, triglycerides and lipoproteins on frozen paraffin  sections. It has the appearance of reddish brown crystals with melting point 199 °C and maximum absorption at 520(357) nm.