Q.
The given figures are of human larynx, front view $(i)$ and vertical section $(ii)$.
Identify the labelled parts $A$ to $D$.
$\,\,\,$
A$\,\,\,$
B
C$\,\,\,$
D$\,\,\,$
(a)$\,\,\,$
Glottis$\,\,\,$
Larynx$\,\,\,$
Vocal cord$\,\,\,$
Cartilaginous
rings of
trachea$\,\,\,$
(b)
Epiglottis$\,\,\,$
Cartilaginous
rings of trachea$\,\,\,$
Trachea$\,\,\,$
Thyroid
cartilage$\,\,\,$
(c)
Glottis$\,\,\,$
Cartilaginous
rings of trachea$\,\,\,$
Larynx$\,\,\,$
Trachea$\,\,\,$
(d)
Epiglottis$\,\,\,$
Bony rings
of trachea$\,\,\,$
Thyroid
cartilage$\,\,\,$
Trachea$\,\,\,$
| $\,\,\,$ | A$\,\,\,$ | B | C$\,\,\,$ | D$\,\,\,$ |
|---|---|---|---|---|
| (a)$\,\,\,$ | Glottis$\,\,\,$ | Larynx$\,\,\,$ | Vocal cord$\,\,\,$ | Cartilaginous rings of trachea$\,\,\,$ |
| (b) | Epiglottis$\,\,\,$ | Cartilaginous rings of trachea$\,\,\,$ | Trachea$\,\,\,$ | Thyroid cartilage$\,\,\,$ |
| (c) | Glottis$\,\,\,$ | Cartilaginous rings of trachea$\,\,\,$ | Larynx$\,\,\,$ | Trachea$\,\,\,$ |
| (d) | Epiglottis$\,\,\,$ | Bony rings of trachea$\,\,\,$ | Thyroid cartilage$\,\,\,$ | Trachea$\,\,\,$ |
Breathing and Exchange of Gases
Solution: