Advertisements
Advertisements
प्रश्न
Mention, if the following statement is True or False
Reflex action is a unit of nervous action
पर्याय
True
False
Advertisements
उत्तर
True
APPEARS IN
संबंधित प्रश्न
What is meant by receptors and effectors? Give two examples of each.
Which of the following statements is correct about receptors?
With the help of suitable example, describe reflex action.
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.
Contraction of eye pupil
Define the following:
Reflex action
What is a reflex action?
What type of reflex is the following?
Knitting and swimming
Categorise the following under stimulus and response.
Seeing a green light turning into red at a road crossing before applying the brakes.
The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the following questions.
 |
- 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.
