Question 4 Page 119 - Chapter 7 Class 10 - Control and Coordination

Last updated at August 14, 2026 by

How do we detect the smell of an agarbatti (incense stick)?

 

Answer

Smell of agarbatti is detected in the following manner:

  • The olfactory receptors in the nose receive the stimulus ( smell of agarbatti)
  • Information is collected by the dendrite tips of sensory nerves .
  • Electrical and chemical signals pass from one neuron to another.
  • Signal reaches to the spinal cord
  • The spinal cord transmits signals to the olfactory bulb of the forebrain
  • The brain processes the information based on stimulus and already available information to detect the smell .
  • Thus, we know the presence of stimuli and characteristics.

PRESENCE OF STIMULI AND CHARACTERISTICS - Teachoo.jpg

OLFACTORY LOBE OF FOREBRAIN SENSES SMELL - Teachoo.jpg

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Transcript

PRESENCE OF STIMULI AND CHARACTERISTICS The olfactory receptors in the nose receive the stimulus (Smell of agarbatti) Information is collected by the dendritic tips of sensory nerves Electrical and chemical signals pass from one neuron to another Signal reaches the spinal cord The spinal cord transmits signals to the olfactory bulb of forebrain The brain processing the information based on stimulus and already available information to detect the smell Thus we know the presence of the stimuli and characteristics

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