Question

Which of the following statements is not true?

Select one:

a. The nervous system responds slowly and the endocrine system responds quickly.

b. Some neurons are capable of secreting hormones.

c. The nervous and endocrine systems can use the same chemical molecule.

d. Both the nervous and endocrine systems use the hypothalamus.

Answer 1

Option 'a' is the correct answer.

The statement, "The nervous system responds slowly and the endocrine system responds quickly." is not true because nervous typically provides a quick response to stimulus through the action of neurotransmitters and action potential in neurons. The typical response time for a touch stimuli is approximately 0.15 sec for nervous system. On the contrary, endocrine system is considerably slow in response since the hormone first has to be released from the endocrine organ and then transported to the target tissue via blood circulation which takes up time as compared to near instant nervous response.