Cavity Formation to Pulmonary Development Flashcards Preview

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Flashcards in Cavity Formation to Pulmonary Development Deck (28):
1

embryonic period

week 3 to 8 most important development period

2

gastrulation initiates:

embryonic period

3

fertilization should take place in the:

Ampula of the uterine tube

4

female egg is unarrested once:

fertilization

5

within the zona palucida, the cells continue to divide and are called:

blastomeres (mercy)

6

at time of implantation, the embryo is called:

blastocyst

7

just before implantation, the embryo:

erupts from zona pallucida

8

neurulation

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.

9

sclerotome

somite derivative: Embryology. the part of a mesodermal somite contributing to the development of the vertebrae and ribs.

10

dermatome

somite derivative: A dermatome is an area of skin in which sensory nerves derive from a single spinal nerve root

11

myotome

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.

12

epimere

myotome derivative (somite derivative): the dorsal portion of a somite, from which are formed muscles innervated by the dorsal ramus of a spinal nerve.

13

hypomere

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.

14

dorsal ramus inervates:

epimere

15

ventral ramus inervates:

hypomere

16

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.

17

somtapleuric

derived from the lateral plate mesoderm, and form the body wall

18

splanchnopleuric

derived from the lateral plate mesoderm, and forms the guts

19

intraembryonic coelom

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

20

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

21

somatic mesoderm on the ventral side of the developing embryo develops into the ________

septum transversus

22

the _______ is angled back because it grew from ventral to dorsal as the embryo enlarges

diaphram

23

the septem transversus grows from the ventral side of the developing embryo to divide the _______

intraembryonic coelom

24

the ______ membrane that grow from the dorsal side to meet up with the septum transversum

pleuroperitoneal membrane

25

pericardioperitoneal cavity is the area closed off by the:

septum transversum and the pleuroperitoneal membrane

26

CDH:

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

27

pleuropericardial folds

separates mediastinum from pleural cavities

28

laryngotracheal diverticulum

the endodermal diverticulum from the floor of the caudal end of the primordial pharynx; it gives rise to the epithelium and glands of the bronchial tree. After this diverticulum separates from the foregut, it is referred to as a tube.