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Question
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?
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Solution
The smell of food is a stimulus.
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RELATED QUESTIONS
What is the role of the brain in reflex action?
How are involuntary actions and reflex actions different from each other?
With the help of a neat and labelled diagram, describe reflex arc.
Briefly explain the following terms : Reflex action
Which of the following is not a natural reflex action?
A. Knee-jerk
B. Blinking of eyes due to strong light
C. Salivation at the sight of food
D. Sneezing when any irritant enters the nose
If we happen to touch a hot object unknowingly, we immediately pull back our hand. What is this type of action known as?
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.
What is a reflex action? Explain with the help of an example.
Cerbellum, medulla and pons are the parts of :
(a) mid-brain
(b) hind-brain
(c) forebrain
(d) spinal cord
Which of the following statements are true?
(i) sudden action in response to something in the environment is called reflex action
(ii) sensory neurons carry electrical signals from spinal cord to muscles in a reflex action
(iii) motor neurons carry signals from receptors to spinal cord in a reflex action
(iv) the pathway of transmitting signals from a receptor to a muscle is a reflex action
The gustatory receptors of our body are in one of the following organs. This organ is :
a) ear
(b) nose
(c) tongue
(d) skin
State whether the following is simple reflex, conditioned reflex or neither of the two:
Sneezing: …………….
State whether the following is simple reflex, conditioned reflex or neither of the two:
Lifting up a book: …………………..
Reflex action is controlled by the
Explain the following term :
Conditioned reflex
State whether the following is simple reflex, conditioned reflex or neither of the two.
Lifting up a book
State whether the following is simple reflex, conditioned reflex or neither of the two.
Knitting without looking
Give Technical Term:
Response to a stimulus without the intervention of the will of an animal.
Mention, if the following statement is True or False
Reflex action is a unit of nervous action
Reflex arc allows the rapid response of the body to a stimulus.
