Flashcards in Cavity Formation to Pulmonary Development Deck (28):
week 3 to 8 most important development period
fertilization should take place in the:
Ampula of the uterine tube
female egg is unarrested once:
within the zona palucida, the cells continue to divide and are called:
at time of implantation, the embryo is called:
just before implantation, the embryo:
erupts from zona pallucida
refers to the folding process in vertebrate embryos, which includes the transformation of the neural plate into the neural tube. The embryo at this stage is termed the neurula.
somite derivative: Embryology. the part of a mesodermal somite contributing to the development of the vertebrae and ribs.
somite derivative: A dermatome is an area of skin in which sensory nerves derive from a single spinal nerve root
somite derivative: A myotome is the group of muscles that a single spinal nerve root innervates. Similarly a dermatome is an area of skin that a single nerve innervates.
myotome derivative (somite derivative): the dorsal portion of a somite, from which are formed muscles innervated by the dorsal ramus of a spinal nerve.
myotome derivative (somite derivative): one of the ventrolateral portions of the fusing myotomes in embryonic development, forming muscles innervated by the ventral rami of the spinal nerves.
dorsal ramus inervates:
ventral ramus inervates:
lateral plate mesoderm:
the peripheral portion of intraembryonic mesoderm that is continuous with the extraembryonic mesoderm beyond the margins of the embryonic disc; it forms the somatic and splanchnic mesoderm between which develops the intraembryonic celom.
derived from the lateral plate mesoderm, and form the body wall
derived from the lateral plate mesoderm, and forms the guts
In the development of the human embryo the intraembryonic coelom (or somatic coelom) is a portion of the conceptus forming in the mesoderm during the third week of development. During the third week of development, the lateral mesoderm splits into a dorsal somatic mesoderm (somatopleure) and a ventral splanchnic mesoderm (splanchnopleure). The resulting cavity between the somatopleure and splanchnopleure is called the intraembryonic coelom
During the third week of development, the lateral mesoderm splits into a dorsal_______ and a ventral ______ The resulting cavity between the _______ and ________ is called the intraembryonic coelom
During the third week of development, the lateral mesoderm splits into a dorsal somatic mesoderm (somatopleure) and a ventral splanchnic mesoderm (splanchnopleure). The resulting cavity between the somatopleure and splanchnopleure is called the intraembryonic coelom
somatic mesoderm on the ventral side of the developing embryo develops into the ________
the _______ is angled back because it grew from ventral to dorsal as the embryo enlarges
the septem transversus grows from the ventral side of the developing embryo to divide the _______
the ______ membrane that grow from the dorsal side to meet up with the septum transversum
pericardioperitoneal cavity is the area closed off by the:
septum transversum and the pleuroperitoneal membrane
The majority of CDHs occur on the left side. The hole allows the contents of the abdomen (stomach, intestine, liver, spleen, and kidneys) to go up into the fetal chest
separates mediastinum from pleural cavities