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WorksheetsEmbryonic & Fetal Development
Total questions: 12
Worksheet time: 6mins
Which of the following stages starts the process of embryonic development?
Fertilization
implanation
menstruation
ovulation
The developing ball of cells that implants in the endometrium is called?
zygote
blastocyst
embryo
baby
Which of these three layers develop into the structure that insulates the developing embryo?
Chorion
amnion
allantois
trophoblast
The placenta forms out of which of the following layers?
Amnion
chorion
allantois
trophoblast
Which of these structures eventually forms the umbilical chord?
amnion
chorion
allantois
trophoblast
Which of the following hormones is produced by the chorion and assists in preventing miscarriages?
FSH
LH
Estrogen
hCG
The ectoderm develops into which of the following systems?
nervous system
skeletal system
circulatory system
digestive system
The endoderm would NOT develop which of the following organs?
Lungs
heart
stomach
intestines
The mesoderm develops into which of the following system(s)?
Skeletal & Circulatory
Reproductive
Digestive & Respiratory
Nervous System
By week 9 of the first trimester, what is the developing embryo now called?
Baby
infant
fetus
tiny alien
During the second trimester, which of these processes can be detected by a doctor?
Laughing
Crying
Heart Beat
Breathing Rate
At birth, what hormone is released that stimulates uterine contracts?
FSH
USH
Oxytocin
Relaxin
