Embryology Flashcards
When is the embryo visible on ultrasound?
From 5-6 weeks
What happens at week 5 of embryonic development? (2)
Nervous system starts developing
Heart forming in a tube-like structure
What happens at week 6 of embryonic development? (4)
Arms and legs become visible as small swellings
See through skin is present
Head and facial features develop
All major organs are present in primitive form
What happens at week 7 of embryonic development? (3)
Inner ear starts to develop
External genitalia present
Fetal movement seen on ultrasound
What happens within weeks 8-12 of fetal development? (8)
Eyelids fuse, eyes develop colour pigment
Suckling and swallowing begin
Kidneys begin to function
Some primitave reflexes are present
Outer ear begins to develop
Heart is fully formed at 10 weeks
Fetal head makes up 1/3 of the total body length
What happens to fetal development from 12 weeks?
The fetus is fully formed at 12 weeks and will continue to grow and mature over the next 28 weeks
When is the embryo referred to as a fetus?
From 8 weeks
