The third stage of childbirth is also known as delivery of the placenta.
The process of childbirth has three stages in total- The womb's neck, or cervix expands , to a 10 cm dilation during the first stage. The baby descends through the vagina and is born during the second stage. The placenta (afterbirth) is delivered during the third stage.
During this stage of childbirth, placenta and membranes (that held the baby in the womb) emerge from the vagina.
Although the delivery of the placenta usually takes 30 minutes, it sometimes takes an hour. The placenta is pushed in entering the delivery canal by the contractions.
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Answer:
Adaptive Immunity
Explanation:
Immunological system is a feature of adaptive immunity.
Adaptive immunity is the overall immune system that composed systemic cells and processes that prevent their growth.
Adaptive immune system works to protect and heal the body when the innate immune system stop.
Therefore Immunological memory is the ability of the immune system to recognize an antigen that the body has previously encountered by initiating an immune response.
Immunological memory is an important traits of adaptive immunity because the immune system can remember the antigens that previously activated it and launch a more intense immune reaction when encountering the same antigen a second time.
Immunological memory is a characteristic of our immune system.