Advertisements
Advertisements
Question
How do we detect the smell of an agarbatti (incense stick)?
Solution
When the smell of the incense stick reaches to our nose then the factory receptors present in our nose detects it send this information in fore brain in the form of electrical signals. The brain interprets this information as the smell of incense sticks where it is already stored.
APPEARS IN
RELATED QUESTIONS
How are involuntary actions and reflex actions different from each other?
Fill in the following blanks with suitable words :
Our.............system allows us to react to our surroundings. Information from receptors passes along...........neurons to our brain. Our brain sends impulses along..........neurons to our muscles.
Name the function of cerebrum.
When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the smell of the food?
One of the following controls the peristaltic movements of alimentary canal. This one is :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
Put a tick mark (✓) against the correct alternative in the following statement:
The smell of good food causes watering of your mouth. It is a
State whether the following is simple reflex, conditioned reflex or neither of the two:
Knitting without looking: …………………..
Give one example of a conditioned reflex in your own life.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Blushing
State whether the following is
Constriction of pupil
State whether the following is simple reflex, conditioned reflex or neither of the two.
Knitting without looking
State whether the following is
Salivation when food is put in the mouth.
What type of reflex is the following?
Knitting and swimming
What will you do if someone pricks your hand with a needle? Elucidate the pathway of response with a neat labelled diagram.
Which one of the following is not a simple reflex?
How is the mode of action in beating of the heart different from reflex actions? Give four examples.
What kind of reflex is cycling?
Why have reflex arcs evolved in animals?
