Question
Sketch larynx and explain its functions in your own words.
✓
Answer
In humans, the sound is produced by the voice box also called larynx. We can easily feel this part of the body by putting our fingers on the thoust and find a hard bump that seems to move when we swallow.
Structure
i. it is the upper end of the wind pipe.
ii. Two vocal cords are stretched across the voice box or larynx.
iii. The vocal cords are stretched in such a manner that it leaves a narrow slit between them for the passage of air.
Working
i. When the lungs force air through the slit, the vocal cords vibrate and hence, produce sound.
ii. Muscles attached to the vocal cords can make the cords tight or loose.
iii. When the vocal cords are tight and thin, the type or quality of voice is different from that when they are loose.
Structure
i. it is the upper end of the wind pipe.
ii. Two vocal cords are stretched across the voice box or larynx.
iii. The vocal cords are stretched in such a manner that it leaves a narrow slit between them for the passage of air.
Working
i. When the lungs force air through the slit, the vocal cords vibrate and hence, produce sound.
ii. Muscles attached to the vocal cords can make the cords tight or loose.
iii. When the vocal cords are tight and thin, the type or quality of voice is different from that when they are loose.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
How did his habits and surroundings affect his well-being?
What are the major groups of microorganisms ?
At an individual level, how can you help reduce air pollution?
Discuss the role of pressure and particle movement in explaining weather phenomena like winds and cyclones. How does understanding particle behaviour in the air help us predict such events?
What is meant by water pollution? What are the different ways in which water gets polluted?
What is global warming? What are the likely harmful effects of global warming?
Analyse how human activities are influencing Earth’s climate using scientific reasoning. What observations and evidence can we use to understand and reduce our impact on the planet?
Explain why school bags are provided with wide straps to carry them.
Make a sketch of human nerve cell. What function do nerve cells perform?
How is the phenomenon of reflection used in making a kaleidoscope? What are the applications of a kaleidoscope?