Quick Answer: What Is The Germinal Stage?

What is germinal period?

The germinal period (about 14 days in length) lasts from conception to implantation of the zygote (fertilized egg) in the lining of the uterus.

During this time, the organism begins cell division and growth.

After the fourth doubling, differentiation of the cells begins to occur as well..

Which trimester is the most critical for fetal development?

The first trimester is the most crucial to your baby’s development. During this period, your baby’s body structure and organ systems develop. Most miscarriages and birth defects occur during this period.

What are the most common problems in prenatal development?

Fetal Macrosomia. When a baby grows overly large in the womb. … Maternal Infections. If not diagnosed and treated, infections during pregnancy can potentially be dangerous to the baby and cause serious birth injuries.Preeclampsia. … Placental Abruption. … Placenta Accreta. … Placenta Previa. … Polyhydramnios. … Oligohydramnios.More items…

What can go wrong in prenatal development?

Prenatal risk factors include chronic maternal illness, certain maternal infections, toxin exposures and nutritional deficiencies. Risk factors in the perinatal period include pregnancy-related complications, prematurity and low birth weight, and infection exposure during pregnancy or at time of birth.

What are the problems that arise during pregnancy?

The following are some common maternal health conditions or problems a woman may experience during pregnancy—Urinary Tract Infections (UTI) … Mental Health Conditions. … Hypertension (High Blood Pressure) … Obesity and Weight Gain. … Infections.More items…

What is the correct order of prenatal development?

There are three stages of prenatal development: germinal, embryonic, and fetal.

What is the hardest trimester of pregnancy?

The first trimester of pregnancy can often be the hardest. Pregnancy hormones, extreme fatigue, nausea and vomiting, tender breasts, and perpetually needing to wee make life growing a human no easy feat.

What is the last stage of pregnancy?

The third trimester is the final stage of pregnancy.

At what week is a baby’s brain fully developed?

From week 33 the baby ‘s brain and nervous system are fully developed, and the bones are continuing to harden. At 36 weeks, the baby’s lungs are fully formed and ready for breathing after birth. The digestive system, is also fully prepared for breast milk.

What are the stages of the germinal period?

The germinal stage involves several different processes that change an egg and sperm first into a zygote, and then into an embryo. The processes include fertilization, cleavage, blastulation, and implantation.

What weeks are Germinal Stage?

The first two weeks after conception are known as the germinal stage, the third through the eighth week is known as the embryonic period, and the time from the ninth week until birth is known as the fetal period.

What are 3 major developments in the germinal period?

Terms in this set (12) What are three major developments in the germinal period? – rapid cell division and the beginning of cell differentiation. -About a week after conception, blastocyst, forms two distinct parts a shell that will become the placenta.

What can go wrong in Germinal Stage?

Abnormalities in the genes and chromosomes can occur. Both the speed of the cell division and the process of the cell differentiation expose the zygote to trauma.

What do you do in the germinal stage?

Processes in the Germinal Stage. The germinal stage involves several different processes that change an egg and sperm first into a zygote, and then into an embryo. The processes include fertilization, cleavage, blastulation, and implantation.

What is the critical period in pregnancy?

In general, major defects of the body and internal organs are more likely to occur between 3 to 12 embryo / fetal weeks. This is the same as 5 to 14 gestational weeks (weeks since the first day of your last period). This is also referred to as the first trimester.

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