Page 62 - Teknik Menjawab Soalan PSPM Biologi

Topic 7: Gaseous Exchange and Its Control

Explain the role of chemoreceptors in controlling the rate of normal breathing

3 main components involved in controlling mechanisms

3. Effectors
1. Receptors
2. Control Centre
(diaphragm &
(carotid and aortic (inspiratory centre) external intercostal

bodies)
muscles)

2 keywords that usually used

1. Stimulate (inspiration)

2. Inhibit (expiration)