Embryology Flashcards
At which stage are the germ layers formed?
Gastrulation
What occurs during fertilisation?
Union of sperm and oocyte
What occurs during cleavage?
Earliest divisions of the embryo
What occurs during morphogenesis?
Formation of the body plan?
What occurs during organogenesis?
Development of the primordial of all the organs
At which stage of lung maturation does branching to give the terminal bronchioles occur?
Pseudoglandular
What happens in the embryonic period of lung maturation?
Branching to the level of the lobar bronchi
What happens in the canalicular period of lung maturation?
Respiratory bronchioles and alveolar ducts form
What happens in the saccular period of lung maturation?
Terminal sacs form and capillaries become associates
What happens in the alveolar period of lung maturation?
Alveoli mature (this continues into early childhood)