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प्रश्न
Categorise the following under stimulus and response.
Pain in the eye if something falls into it.
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उत्तर
Stimulus: Something falling into the eye.
Response: Pain in the eye.
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संबंधित प्रश्न
How are involuntary actions and reflex actions different from each other?
What are the various sense organs in our body?
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
Which of the following cannot be considered a receptor?
(a) ear
(b) nose
(c) muscle
(d) eye
The gustatory receptors of our body are in one of the following organs. This organ is :
a) ear
(b) nose
(c) tongue
(d) skin
what do we refer to in the nervous system when we say:
Natural and conditioned …………………
Mention, if the following statement is True or False
Reflex action involves brain
Categorise the following under stimulus and response.
Withdrawal of hand on touching a hot plate
State whether the following is simple reflex, conditioned reflex or neither of the two.
Sneezing
The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the following questions.
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- Name the phenomenon shown in the figure and define the same.
- Identify the parts labelled as 1 and 2. Write one functional difference between these two.
- Name the bony protective covering and the membranous protective covering of the spinal cord.
- Label the guidelines 3 and 4.
- How is the labelled part 3 different from part 4 with respect to its composition (part of neuron)?
- Give the technical term for the point of contact between the two nerve cells.
- Name the fluid filled inside the central canal of spinal cord.
- Name the term used for a small gap between two neurons.
- Give one example of a neurotransmitter.
- Draw a neat diagram of a nerve cell and label the parts: Perikaryon, Node of Ranvier, Myelin sheath and Axon terminals.
