|
Appendix 2
The Development of the Unborn Child's Body
|
Breathing
|
Timing
|
Source |
Breathing movements have been detected.
|
9th week after fertilization |
Boddy, p 4 |
| A fetus born at this time will attempt
to breathe. |
22nd week after fertilization |
Williams, p 154 |
| The lungs are capable of breathing
air. The central nervous system can direct rhythmic
breathing and control body temperature. |
26th - 29th weeks after fertilization |
Moore, p 114 |
|
