The following parts are involved in breathing p... - JAMB Biology 2015 Question
The following parts are involved in breathing process, except
A
mouth
B
nostrils
C
ribs
D
diaphragm
correct option: a
The act of breathing has two stages – inhalation and exhalation
- Inhalation – the intake of air into the lungs through expansion of chest volume.
- Exhalation – the expulsion of air from the lungs through contraction of chest volume.
Inhalation and exhalation involves muscles:
- Rib muscles = the muscles between the ribs in the chest.
- Diaphragm muscle
- Inhalation – the intake of air into the lungs through expansion of chest volume.
- Exhalation – the expulsion of air from the lungs through contraction of chest volume.
Inhalation and exhalation involves muscles:
- Rib muscles = the muscles between the ribs in the chest.
- Diaphragm muscle
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