Reflex Action

When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the cells in your nasal passages which perceive the smell?

Two hungry boys (A and B) enter a restaurant and find a table decorated as follows:

Boy B starts salivating but not A. Explain the reason for this difference.

what do we refer to in the nervous system when we say:

Natural and conditioned …………………

A cell (or group of cells) in a sense organ which is sensitive to a particular type of stimulus is called :

(a) interceptor
(b) effector
(c) receptor
(d) acceptor

Differentiate between the following pair of terms:
Stimulus and impulse

Complete the following sentence with appropriate Word
The control of reflex action is through:

With the help of suitable example, describe reflex action.

State whether the following is simple reflex, conditioned reflex or neither of the two.

Lifting up a book