18 Questions
What is responsible for the early nourishment of the embryo before the placenta is well established?
Uterine milk
Which structure gives rise to the smooth muscles of the viscera and myocardium?
Sclerotome
What becomes the neurons of the peripheral nervous system during ontogeny?
Calcitonin-secreting cells
Which part of the blastocyst gives rise to fetal membranes in a conceptus?
Inner cell mass
What is responsible for absorbing nutritive material from maternal blood during early nutrition?
Imbibition of trophoblast cells
Which structure gives rise to the epithelial lining of the respiratory, digestive, and genitourinary tract?
Primitive gut
What is the typical and most widespread form of ontogenic development occurring in sexual reproduction?
Embryogenesis
When does the fetal period occur in the ontogenic development process?
After the embryonic period
Which phase of ontogenic development involves the development and maturation of sex cells known as gametes?
Gametogenesis
What does ontogeny refer to in an individual's lifespan?
The entire lifespan from zygote to death
Which term is used for the development of new individuals through asexual reproduction?
Blastogenesis
When does the embryonic period end in ontogenic development?
After organ development
What is the process that involves the increase in cellular size and number of cells in an organism?
Growth
Which term describes the change in shape or location of a cell or tissue?
Patterning
What is the process by which a cell or cell line attains a stable phenotype?
Cytodifferentiation
Which group controls the differentiation of another group of cells in tissue interaction?
Inducing cells
What do neuroblasts become during development in the nervous system?
Neurons
What do spongioblasts develop into in the central nervous system?
Neuroglia
Learn about the formation of body structures and organs (organogenesis) in embryology, which involves cell division (proliferation) and cell differentiation (specialization). Explore the process of blastogenesis used for the development of new individuals through asexual reproduction. Gain insights into ontogeny, which encompasses an individual's entire lifespan from zygote to postpartum life.
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