Fetal Development

Flashcards about Fetal Development

What biological process transforms a fertilized egg into a fully formed human being?

Fetal development

How many weeks of gestation does fetal development typically span?

Approximately 40 weeks

What are the three main stages of fetal development?

Germinal, embryonic, and fetal stages

What stage begins with the fertilization of the egg by a sperm cell?

Germinal stage

What structure is formed when a zygote undergoes mitotic division?

Blastocyst

Where does the blastocyst implant during the germinal stage?

Uterine wall

During what stage does organogenesis occur?

Embryonic stage

What key structures begin to develop during the embryonic stage?

Neural tube and heart

During which stage are limb buds and eyes formed?

Embryonic stage

How is the organism referred to from week 9 onward?

Fetus

What characterizes the fetal stage?

Significant growth, organ maturation, and increasing physiological complexity

When does the fetus begin to respond to external stimuli?

Fetal stage

During which trimester does the formation of major organs occur?

First trimester

When does fetal movement become noticeable?

Second trimester

What occurs during the third trimester of fetal development?

Organ maturation and fat accumulation

Name three factors that can affect fetal development.

Genetic, environmental, and maternal health factors

What type of prenatal care is essential for healthy fetal development?

Proper prenatal care

Around what day post-fertilization does the fetal heartbeat begin?

Day 21

Around what week can the fetus perceive sounds?

Week 20

Name two reflex actions observable in the fetus.

Hiccupping and swallowing

What role does the intrauterine environment play?

Important role in early neurological development

What is fetal development?

A highly organized and dynamic process that enables the progressive formation of a new human life

Why is understanding fetal development crucial?

Important in biology and discussions surrounding health, ethics, and society

What is the result of the fertilization of the egg by a sperm cell?

Formation of a zygote

What is the importance of the embryonic stage?

Critical period of organogenesis

How does the nervous system develop during the Fetal Stage?

The nervous system develops further during the fetal stage

What are some environmental factors that can affect fetal development?

Exposure to harmful substances such as tobacco, alcohol, or drugs

What are some maternal health factors that can affect fetal development?

Infections, malnutrition, or chronic stress

What is the germinal stage?

The stage in which the zygote travels down the fallopian tube and implants in the uterine wall

What are the organ maturation and fat accumulation?

Characteristics of the third trimester