Embryonic Development Stages Quiz

Zygote = Fertilized egg Embryo = Solid ball of cells at early stage of development Fetus = Embryo with all organs formed after 8 weeks Placenta = Structure attached to lining of uterus, provides oxygen and nutrients to embryo

Amnion = Fluid-filled sac protecting the embryo from damage Umbilical cord = Tube attaching embryo to placenta for nutrient exchange Heart = First organ to form in the embryo, pumps blood around the body Oviduct = Passageway for early embryo to travel to the uterus

Implantation = Process where embryo sinks into lining of uterus Amniotic fluid = Fluid surrounding embryo inside the amnion sac Placenta attachment = Connection between placenta and lining of uterus for nutrient transfer Carbon dioxide exchange = Transfer of waste product from embryo's blood to mother's blood

<p>Oxygen = Obtained from mother's blood through placenta Glucose = Nutrient passed across placenta to embryo's bloodstream Amino acids = Nutrients transferred from mother to embryo by means of placenta Carbon dioxide = Waste product passed from embryo's blood to mother's blood through placenta</p> Signup and view all the answers

<p>Zygote = The fertilized egg that first divides into two cells Embryo = The early stage in development where a solid ball of cells is produced Fetus = The stage after 8 weeks when all the organs are formed Amnion = The fluid-filled sac surrounding the embryo inside the uterus</p> Signup and view all the answers

<p>Heart = Pumps blood around the body of the embryo Placenta = Facilitates the exchange of oxygen and nutrients between mother and embryo Umbilical cord = Attaches the embryo to the placenta for nutrient exchange Amniotic fluid = Protects the embryo from damage and prevents unequal pressures</p> Signup and view all the answers

<p>Implantation = The process where the embryo sinks into the lining of the uterus Cell division = Continual division leading to the formation of tissues and organs Nutrient exchange = Obtaining oxygen and food from mother's blood through the placenta Formation of organs = Occurs after 8 weeks, marking the transition to fetus stage</p> Signup and view all the answers

<p>Oxygen exchange = Passage of oxygen from mother to embryo through placenta Carbon dioxide exchange = Transfer of carbon dioxide from embryo to mother's blood Amnion = Fluid-filled sac protecting the embryo inside the uterus Zygote division = Initial splitting of fertilized egg into two cells</p> Signup and view all the answers

<p>Oviduct = Passage for early embryo travel from ovary to uterus Placenta = Obtains oxygen and nutrients for embryo from mother's blood Uterus lining = Site where embryo sinks in a process called implantation Amnion = Encloses embryo in a protective fluid-filled sac inside uterus</p> Signup and view all the answers

<p>Placenta function = Provides essential nutrients and oxygen for embryo growth Amniotic fluid purpose = Protects embryo from damage and maintains stable pressure Cell division importance = Leads to tissue and organ formation during embryonic stage Implantation significance = Marks the attachment of embryo to uterus for further growth</p> Signup and view all the answers

<p>Glucose = Nutrient passing from placenta to embryo's bloodstream Amino acids = Essential building blocks transferred through placenta to support growth Amniotic fluid = Maintains stable environment for healthy development of embryo Carbon dioxide = Waste product removed from embryo's blood through placenta</p> Signup and view all the answers

<p>Placenta attachment = Ensures separation of mother's and embryo's blood while facilitating exchange Umbilical cord role = Connects placenta to embryo for nutrient transfer without mixing bloodstreams Amnion function = Acts as a protective barrier around the developing embryo inside the uterus Mother's blood flow control by placenta = Prevents direct mixing of mother's and embryo's blood during nutrient exchange</p> Signup and view all the answers

<p>Heart formation timing = One of the first organs developed in early stages before tissue formation begins Organogenesis completion period = After 8 weeks, all organs are formed marking transition to fetus stage Amnion formation purpose = Encloses developing embryo in a fluid-filled protective sac inside uterus Implantation process significance = Attachment of early-stage embryo into uterine lining for further growth</p> Signup and view all the answers