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RESPI > Development > Flashcards

Development Flashcards

1
Q

Lower respiratory tract not completed until

A

End of fetal period

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2
Q

What forms the respiratory diverticulum

A

Anterior wall of foregut

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3
Q

Epithelium of internal respiratory system formed from

A

Endoderm

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4
Q

Cartilage, CT, SM of respiratory system formed from

A

Mesoderm

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5
Q

Into what does respiratory diverticulum divide

A

Lung buds

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6
Q

Division of trachea and esophagus through

A

Tracheoesophageal septum

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7
Q

Defect in tracheoesophageal septum results in

A

Trachea-esophageal fistulas

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8
Q

What is a tracheoesophageal fistula

A

Connection between trachea and esopagus

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9
Q

Cause of tracheaesophageal fistula

A

Mesoderm defect. Because mesoderm –> cartilage, CT, SM

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10
Q

VATER

A

Vertebral anomalies - Anal atresia - Tracheoesophageal fistula - Esophagus atresia - Renal atresia

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11
Q

VATERL

A

VATER + Limb diseases

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12
Q

When does septum transversum appear

A

4th week

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13
Q

Septum transversum at week 4

A

C1

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14
Q

Septum transversum at week 8

A

T7 and T12

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15
Q

Phrenic nerve root

A

C3-C5

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16
Q

Septumtransversum openings

A

Pericardioperitoneal openings at sides

17
Q

What closes pericardioperitoneal openings at sides

A

Pleuroperitoneal membrane

18
Q

Congenital diaphragmatic hernias

A

Hole on the sides of diaphragm because pleuroperitoneal membranes fail to close pericardioperitoneal spaces

19
Q

What separates pleural and pericardial cavities

A

Pleuropericardial folds

20
Q

When will trachea divide into 2 lung puds

A

5th week

21
Q

Division of left primary bronchus into

A

2 secondary bronchi (lobes)

22
Q

Division of right primary bronchus into

A

3 secondary bronchi (lobes)

23
Q

When are tertiary bronchi (segmental bronchi) formed

A

7th week

24
Q

How many segmental bronchi on left

A

10

25
Q

How many segmental bronchi on right

A

8

26
Q

Fibroblast growth factor involved in separating bronchi

A

FGF2 and FGF10

27
Q

Development starts at week

A

4

RESPI (16 decks)

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