Advertisements
Advertisements
प्रश्न
Which sensory organ is involved in vertigo (sensation of oneself or objects spinning around)?
उत्तर
The vestibular system of the inner ear is associated with vertigo.
APPEARS IN
संबंधित प्रश्न
With the help of a neat and labelled diagram, describe reflex arc.
Briefly explain the following terms : Reflex action
Name one gustatory receptor and one olfactory receptor present in human beings.
State whether coughing is a voluntary action or reflex action.
Write the names of the regions in hindbrain. Give one function of each region.
Which of the following is not an involuntary action?
(a) vomiting
(b) chewing
(c) heart beat
(d) salivation
One of the following gives the correct sequence of the components in a reflex arc. This is:
Define the following:
Reflex action
State whether the following is
The sudden application of brakes without thinking
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.
