CBSE Class 10 Answered
respiration
Asked by | 20 May, 2009, 09:33: PM
Expert Answer
The respiratory tract includes the nasal passages, pharynx, larynx, trachea, the primary bronchi, and lungs.
Air enters the nostrils, passes through the nasopharynx, the oral pharynx, through the glottis, into the trachea into the right and left bronchi, which branches and rebranches into bronchioles, each of which terminates in a cluster of alveoli.
Only in the alveoli does actual gas exchange takes place. There are some 300 million alveoli in two adult lungs. These provide a surface area of some 160 m2
Answered by | 21 May, 2009, 08:35: PM
Application Videos
Concept Videos
CBSE 10 - Biology
Asked by bgmigaurav7318 | 08 Apr, 2024, 01:46: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by jayeshsah1995 | 04 Mar, 2024, 12:01: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by nsubhashree54 | 24 Feb, 2024, 11:08: AM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by sarmabankupalli9 | 02 Jan, 2024, 08:19: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by pavanimullu123 | 26 Dec, 2023, 07:17: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by jitendranathsingh331 | 26 Nov, 2023, 06:17: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by waccstudies123 | 08 Oct, 2023, 02:10: AM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by 09.10bjanvhijadhav | 16 Sep, 2023, 11:58: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by devy64469 | 03 Sep, 2023, 09:25: PM
ANSWERED BY EXPERT
CBSE 10 - Biology
Asked by krishnaagrawal79 | 19 Jul, 2023, 05:07: PM
ANSWERED BY EXPERT