During pregnancy what are internal changes

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The major change is that the myometrium enlarges as the foetus grows.inspite of that,many hormonal changes such as progesterone,estrogen and other hormone level increases.

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Menstraul cycle is stop and harmones level are increase like- progesterone etc....after many changes foetus grow into baby....

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During pregnancy progesterone is secreted which induces milk in the mammary glands .

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Mammary glands r enlarged to feed the baby,blood glucose levels are inc ,....

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Internal Changes During Pregnancy

Pregnancy is a transformative journey for a woman's body, resulting in numerous changes both externally and internally. While the visible physical changes like weight gain and a growing belly are evident, there are also several internal changes that occur to support the development and well-being of the growing fetus. These internal changes involve various organs and systems of the body, adapting to accommodate the needs of the pregnant woman and her baby.

1. Hormonal Changes:
- During pregnancy, the body experiences a surge in hormones, such as estrogen and progesterone.
- These hormonal changes play a crucial role in maintaining the pregnancy and promoting fetal development.
- Estrogen and progesterone are responsible for regulating the menstrual cycle, preparing the uterus for implantation, and supporting the growth of the placenta.

2. Cardiovascular System:
- The cardiovascular system undergoes significant changes to meet the increased demands of pregnancy.
- Blood volume increases by approximately 40-50% to supply oxygen and nutrients to the growing fetus.
- The heart rate also increases to accommodate the increased blood volume and meet the metabolic needs of both the mother and the baby.
- Blood pressure may slightly decrease during early pregnancy but gradually returns to normal levels as the pregnancy progresses.

3. Respiratory System:
- The respiratory system adapts to provide sufficient oxygen to the developing fetus.
- The mother's oxygen consumption increases, and respiratory rate slightly elevates to meet the increased demands.
- The diaphragm also shifts upward due to the growing uterus, which may cause shortness of breath or feelings of breathlessness in some pregnant women.

4. Urinary System:
- The urinary system experiences changes to accommodate the growing uterus and increased blood volume.
- The kidneys work harder to filter waste products from the mother's blood and eliminate them through urine.
- As the uterus expands, it can exert pressure on the bladder, leading to increased frequency of urination and potentially urinary incontinence.

5. Digestive System:
- Many women experience changes in the digestive system during pregnancy.
- Hormonal fluctuations can lead to nausea, vomiting (morning sickness), and changes in appetite.
- The gastrointestinal tract may slow down, resulting in constipation and bloating due to the relaxation of the intestinal muscles caused by progesterone.

6. Immune System:
- The immune system undergoes alterations to prevent the maternal body from rejecting the developing fetus.
- The immune response is suppressed to tolerate the semi-allogeneic fetus, which carries half of the father's genetic material.
- This adaptation helps protect the growing baby while still maintaining the mother's ability to fight off infections and diseases.

In conclusion, pregnancy brings about various internal changes in a woman's body. These changes are orchestrated by hormonal fluctuations and involve multiple systems, including the cardiovascular, respiratory, urinary, digestive, and immune systems. Understanding these internal changes is essential for healthcare providers to ensure the well-being of both the mother and the developing fetus throughout the pregnancy.

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