Science Quiz / Embryo Unit 2a

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Can you name the Embryo Unit 2a?

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EmbryologyAnswer
in the embryo the atrium and ventricle are connected by the _____?
sublayer of the lateral plate mesoderm that is continuous with the extraembryonic mesoderm is known as ___?
An evagination of the ventral wall of the primitive foregut which will eventually become the respiratory system.
the aorticopulmonary ridge is formed from the fusion of ?
before the foramen primum closes, enlarging perforations form the 2nd single hole called _______ develop in the septum primum.
the permanent hole in the septum secundum is the _____ ______.
true or false: After birth, pressure is greater in the right side of the heart than in the left.
true or false: the increased pressure in the left side of the heart (after birth) forces the valve of the foramen ovale shut. Then the valve is fused forming a complete interatrial
The tissue that separates the laryngotracheal tube from the esophagus. The septum is formed by the fusion of the lateral tracheoesophageal folds.
separation of the truncus arteriosus is formed form
the anterior portions of the left and right atria are formed from which bulge on the embryonic heart tube
True or False: In the developing fetus the pressure on the right side of the heart is less than that of the left.
these aveolar cells produce surfactant within the lungs
visceral pleura is formed from _____ mesoderm.
caused by abnormal development of the septum primum or the secundum, resulting in a patent foramen ovale.
lungs are derived from which germ layer
the trabeculae of the left and right ventricles are formed from which bulge on the embryonic heart tube
Adult remnant of the ductus venosus is the _______.
Oxygenated blood is brought from the placenta to the embryonic heart via the
The connective tissue, cartilage and smooth muscle of the trachea are derived from which germ layer?
blood begins to circulate by day___ in the embryo
Shunts blood through the liver in embryo
failure of the ductus arteriosus to close after birth. Common in premature infants.
the first crescent-shaped projection of heart tissue begins to separate the right and left atrias.
the intraembryonic coelom is formed in between 2 sublayers of the lateral plate mesoderm. What are they?
sublayer of the lateral plate mesoderm that the mesodermal layer that is associated with the yolk sac
the intra-atrial septum is formed from the____?
occurs when the AP septum fails to align properly with the AV septum resulting in a pulmonary stenosis, overriding aorta, interventricular septal defect, and hypertrophy of the rig
parietal pleura is formed from _____ mesoderm.
EmbryologyAnswer
the period in which the more terminal sacs grow in number and develop. Gas exchange can occur in this period due to the thinning of the respiratory epithelium and the development o
obstruction of the right ventricle outflow
what percentage of alveolar development occurs after birth?
landmark in the adult heart that marks where the valve of the foramen ovale closed over the foramen ovale
If born prematurely, an infant is least likely to survive during which period of lung development?
the Adult remnant of the umbilical vein is the ______.
the smooth portion of the right ventricle and the outflows for the pulmonary trunk and aorta are formed from which bulge on the embryonic heart tube
the period during lung development in which the tissues are not well vascularized and the bronchopulmonary segments are not highly developed. The respiratory system is too immature
in the developing embryo blood exits the heart via the
after partial degeneration of the septum primum, the lower half remains forming the ___ __ __ _____ ____.
the pseudoglandular period of lung developmetn occurs during weeks ________.
these aveolar cells allow for gas exchange
the pulmonary trunk and the aorta are formed from the ____?
occurs when the AP septum fails to develop in a spiral fashion causing the aorta to open into the right ventricle and the pulmonary trunk into the left ventricle
when does the terminal sac period occur? (weeks)
caudal folding occurs due to the rapid growth of what embryonic structure?
last period in lung development
separates the thoracic cavity from the abdominal (peritoneal) cavity during embryonic development
occurs when membranous portion of the IV septum fails to form. Results in shunting of blood from left to right causing pulmonary hypertension
canalicular period of lung development occurs during weeks _______.
the partition of the atrioventricular canal is due to the growth of the ______?
the heart beat begins at day__?
Adult remnant of the umbilical arteries is the ____.
A solid interstrial septum is formed how many months after birth?
paired endocardial tubes develop in which region
a second crescent-shaped projection of heart tissue grows, right to the septum primum. It is called ______
The Coronary sinus, oblique vein of left atrium, and part of the right atrium are formed from which bulge on the embryonic heart tube
the first opening in the septum primum that allows blood to be shunted from the right atrium over to the left in the embryo is known as the _______
connection between the laryngotracheal tube and the esophagus is known as

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