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About Biomedical Basics
Biomedical Basics are AI-generated explanations prepared with access to the complete collection, human-reviewed prior to publication. Short and simple, covering biomedical and life sciences fundamentals.
Topics Covered
- Labour changes
- Labour phases & hormones
- Childbirth mechanics
- Delivery stages & methods
- Labour onset & complications
- Timely recognition & management
Links
Categories:
Therapeutic Areas:
Talk Citation
(2026, March 31). Labour and birth [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved April 18, 2026, from https://doi.org/10.69645/BCTT1417.Export Citation (RIS)
Publication History
- Published on March 31, 2026
Financial Disclosures
A selection of talks on Clinical Practice
Transcript
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0:00
The following session will
cover labor and birth,
focusing on the physiological,
hormonal and anatomical changes
driving labor and birth,
including the distinct phases of
labor and key hormones involved.
We will examine the
mechanics of childbirth,
such as fetal positioning
and the three
stages of delivery.
The lecture will also address
common signs indicating
labor onset,
variations in delivery methods,
and potential complications.
Finally, we emphasize
the importance of
timely recognition
and management
to ensure the safety of
both mother and baby.
Labor and birth mark the
culmination of pregnancy,
driven by complex physiological,
hormonal, and
anatomical changes.
Labor begins with regular
painful uterine contractions
leading to progressive cervical
effacement and dilation,
and ultimately delivery of
the fetus and placenta.
The process has
three main phases,
early active and transition,
each with distinct
contraction patterns
and cervical changes.
Understanding these phases and
childbirth mechanics allows for
effective guidance
and support of
pregnant individuals through
this major life transition.
Labor begins with the
early or latent phase,
marked by mild irregular
contractions and
gradual cervical effacement
and slow initial dilation.
As labor moves to
the active phase,
contractions
strengthen and become
more regular and
cervical dilation
increases rapidly from
about 4 centimeters to
seven or 10 centimeters.
The transition phase is
the most intense with