GIT & Respiratory System

Card Set Information

Author:
excalibolg
ID:
293742
Filename:
GIT & Respiratory System
Updated:
2015-01-24 16:10:47
Tags:
Embryology
Folders:

Description:
Its not gettin better TT___TT
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user excalibolg on FreezingBlue Flashcards. What would you like to do?


  1. 1.     
      The stage of lung
    development, 6mos. To after birth, during which the respiratory epithelium
    becomes squamous and the capillary loops are intimately related to the
    epithelium is the

    a.      
    Glandular period

    b.     
    Vascular period

    c.      
    Alveolar period

    d.     
    Canalicular period

    e.
    Aciner
    period
    C
  2. 1.     
    In the development of the lung, which of the following is correct:

    a.      
    Alveolar collapse in hyaline membrane disease is a result of
    insufficient surfactant production

    b.     
    Alveoli continue to form postnatally

    c.      
    Alveoli contain specialized epithelial cells which produce
    surfactant

    d.     
    Alveolar epithelium is derived from splachnic mesoderm
    A-C
  3. 1.     
    Mercke’s diverticulum is an adult remnant of the

    a.      
    Urachus

    b.     
    Hindgut

    c.      
    Pars cystica

    d.     
    Vitelline duct

    e.      
    Dorsal pancreatic duct
    D
  4. 1.     
    Endodermal derivatives of the gut include

    a.      
    Gallbladder muscles

    b.     
    Liver hepatocytes

    c.      
    Ligament of treitz

    d.
    Gastric
    luminal epithelium
    B, D
  5. 1.     
    The following events in the development of the abdominal cavity are
    greatly affected by the rapid growth of the liver

    a.      
    Urorectal septum formation

    b.     
    Dorsal mesentery morphogenesis

    c.      
    Formation of inferior recess of lesser sac

    d.     
    Herniation of midgut loop
    D
  6. 1.     
    Factors, major events, or structures associated with midgut
    development include

    a.      
    270 degree rotation

    b.     
    Rapid growth of cranial limb

    c.      
    Vitelline duct

    d.     
    3rd part of the duodenum
    All
  7. 1.     
    In its development, the stomach does :

    a.      
    Rotate 90 degrees clockwise when viewed from above

    b.     
    Descend

    c.      
    Exhibit differential growth

    d.     
    Cause ventral mesentery development
    A-C
  8. 1.     
    The embryonic foregut differentiates into all or part of the

    a.      
    Liver

    b.     
    pancreas

    c.      
    Ascending Colon

    d.
    Lung
    A,C,D
  9. 1.     
    The allantois is derived from

    a.      
    Ectoderm

    b.     
    Endoderm

    c.      
    Both

    d.     
    Neither
    B
  10. 1.     
    The cloacal membrane is derived from

    a.      
    Ectoderm

    b.     
    Endoderm

    c.      
    Both

    d.     
    Neither
    C
  11. 1.     
    The vermiform appendix arises from

    a.      
    Mesoderm

    b.     
    Endoderm

    c.      
    Both

    d.     
    Neither
    C
  12. 1.     
    The liver is a derivative of

    a.      
    The embryonic foregut

    b.     
    The embryonic midgut

    c.      
    Both

    d.     
    Neither
    A
  13. 1.     
    The spleen is derivative of

    a.      
    The embryonic foregut

    b.     
    The embryonic midgut

    c.      
    Both

    d.
    Neither
    D
  14. 1.     
    The vermiform appendix is a derivative of

    a.      
    Embryonic foregut

    b.     
    The embryonic midgut

    c.      
    Both

    d.
    Neither
    B
  15. 1.     
    Abnormal intestinal rotation during fetal development may produce
    the following

    a.      
    Congenital umbilical hernia

    b.     
    Annular pancreas

    c.      
    Infarction and gangrene

    d.     
    Diaphragmatic hernia

    e.      
    Merckel’s diverticulum or diverticulum ilei
    C - twisting and sqeezing due to wrong reentering of the loop can cause blood obstructions --> which finally lead to infarction and gangere
  16. 1.     
    An umbilical fistula is associated with

    a.      
    Allontoic duct

    b.     
    Vitelline duct

    c.      
    Both

    d.     
    Neither
    C
  17. 1.     
    Mecke’s diverticulum is associated with

    a.      
    Allantoic duct

    b.     
    Vitelline duct

    c.      
    Both

    d.     
    Neither
    B
  18. 1.     
    During the development of the gut:

    a.      
    The pancreas receives part of its blood supply via the celiac trunk

    b.     
    The stomach rotates, causing the left vagal trunk to innervate its
    anterior wall

    c.      
    The urorectal fold may fail to divide the cloaca, causing a
    urorectal fistula in the female

    d.     
    The transverse colon becomes retroperitoneal
    A, B, C
  19. 1.     
    In the digestive system

    a.      
    Endoderm forms the lining of the stomach and lung and parenchymal
    cells of the liver

    b.     
    Gut rotates and fusion of mesentery to the dorsal body wall makes
    the spleen retroperitoneal

    c.      
    The duodenum is supplied by both superior and inferior mesenteric
    arteries

    d.     
    The superior mesenteric artery is the axis for counterclockwise
    rotation in the midgut loop
    A, D
  20. 1.     
    In the digestive system

    a.      
    Failure of the intestinal loop to return into the abdominal cavity
    forms meckel’s diverticulum

    b.     
    An omphalocele would most likely develop around 20th –
    21th week of gestation

    c.      
    Stenosis of the gut most frequently occurs in the doudenum

    d.     
    An annular pancreas is caused by a failure in normal migration of
    the ventral pancreas
    • C, D
    • - omophele: failure of the loop to return to the abdomen (bt 10th-12th)
  21. 1.     
    The development of the liver does not

    a.      
    Contain cells derived from mesoderm

    b.     
    Have hematopoietic function in the fetus

    c.      
    Have a gall bladder derived from the hepatic diverticulum

    d.     
    Have hepatic sinusoids which receive the majority of their blood
    from the left umbilical vein
    D
  22. 1.     
    Which of the following conditions would most likely cause vomiting
    in the newborn

    a.      
    Umbilical fistula

    b.     
    Duodenal stenosis

    c.      
    Rectal atresia

    d.     
    Stenosis of the transverse colon
    B
  23. 1.     
    During development of the gut

    a.      
    The stomach rotates, so that the greater curvature faces to the
    left and inferiorly

    b.     
    Retention of the vitelline duct may produce an umbilical fistula

    c.      
    The urorectal septum may fail to divide the cloaca, causing
    rectovaginal fistula in the female

    d.     
    The descending colon becomes retroperitoneal
    All
  24. 1.     
    In the development of the gut

    a.      
    The celiac trunk represents the blood supply to the foregut

    b.     
    The early embryo maintains a connection between the midgut and the
    yolk sac via the allantois

    c.      
    Muscle, connective tissue and blood vessels in the gut wall are
    derived from splachnic mesoderm

    d.     
    The primitive gut tube is in open communication with the amniotic
    cavity
    A, C
  25. 1.     
    Gut rotations and subsequent fusion of mesentery to the dorsal body
    wall causes which of the following to assume a retroperitoneal position?

    a.      
    Gall bladder

    b.     
    Pancreas

    c.      
    Spleen

    d.     
    Jejunum
    B
  26. 1.     
    In the formation of the pancreas

    a.      
    A dorsal and ventral bud from the endoderm of the duodenum are the
    first indications of a pancreas

    b.     
    The ventral pancreatic bud degenerates

    c.      
    An annular pancreas forms if a portion of the vebtral bud rotates
    abnormally

    d.     
    Insulin is secreted during fetal life
    A,C,D
  27. 1.     
    The liver

    a.      
    Receives blood from the placenta via the vitteline vein which runs
    in the falciform ligament

    b.     
    Forms as a diverticulum from the foregut endoderm

    c.      
    Contains hematopoietic and connective tissue cells derived from the
    mesoderm of the septum transversum

    d.
    Contains
    hepatic sinusoids derived from the umbilical veins
    B,C
  28. 1.     
    In the development of the midgut

    a.      
    The superior mesenteric artery is the axis for clockwise rotation
    of the midgut loop

    b.     
    The persistence of part of the vitelline duct leads to vitelline
    fistula

    c.      
    A vitelline cyst may result from abnormal remodeling of the
    vitelline veins

    d. 
    An
    omphalocele is not synonymous with congenital umbilical hernia
    • B, D
    • -sup. mesenteric twist the stuff counterclockwise -_- (really guys TT__TT!!)
    • - vitteline duct or cyst = The persistence of part of the vitelline duct leads to it
  29. 1.     
    The yolk sac detaches from the gut by the end of the

    a.      
    2nd week

    b.     
    5th week

    c.      
    3rd month

    d.     
    4th month

    e.
    5th
    month
    B
  30. 1.     
    A persistence of the vitelline duct may result in

    a.      
    Ileal diverticulum

    b.     
    Meckel’s diverticulum

    c.      
    Vitelline cyst

    d.     
    Umbilical fistula
    All
  31. 1.     
    During embryological development, the large intestine is

    a.      
    Last to leave the umbilical cord and re-enter the abdominal cavity

    b.     
    Always longer than the small intestine

    c.      
    Both

    d.     
    Neither
    A
  32. 1.     
    Typical bile, secreted by hepatic cells

    a.      
    Occurs in fetuses of 5 months old

    b.     
    Colors the meconium

    c.      
    Both

    Neither
    C
  33. 1.     
    Accessory pancreases

    a.      
    Are extremely rare

    b.     
    Occur within the wall of the intestine and stomach

    c.      
    Both

    d.     
    Neither
    B
  34. 1.     
    Factors assisting in the rotation of the stomach includes

    a.      
    Rapid expansion of the dorsal mesentery

    b.     
    Slow growth of the ventral mesentery

    c.      
    Both

    Neither
    C
  35. 1.     
    The terminal dilated part of the hindgut is called the

    a.      
    Cloaca

    b.     
    Yolk stalk

    c.      
    Allantois

    d.     
    Cecum

    Coelom
    A
  36. 1.     
    Which of the following arteries supply derivatives of the caudal
    portion of the foregut?

    a.      
    Celiac trunk

    b.     
    Inferior mesenteric artery

    c.      
    Pulmonary artery

    d.     
    Umbilical artery

    e.      
    Common iliac artery
    A
  37. 1.     
    Which of the following statements about the developing duodenum is  true?

    a.      
    Is derivative of the foregut and the midgut

    b.     
    The yolk stalk is attached to the apex of the duodenal loop

    c.      
    It is supplied by branches of the foregut and midgut arteries

    d.     
    It becomes C-shaped as it develops and the stomach rotates

    e.      
    Its lumen is not temporarily obliterated by epithelial cells
    A,C,D
  38. 1.     
    The following embryonic structures can give origin to cysts,
    diverticula, or fistulae in postnatal life except:

    a.      
    Vitelline duct

    b.     
    Urachus (allantoid duct)

    c.      
    Ductus venosus (Botalli)

    d.     
    Neural tube

    e.      
    Metanephros
    C
  39. 1.     
    One-eighth to one-sixth of the adult number of alveoli are present
    in the lungs at birth. Their numbers increase after birth at least until…..
    years of age

    a.      
    1

    b.     
    2

    c.      
    4

    d.     
    6

    e.      
    8
    E
  40. 1.     
    Pulmonary surfactant most likely begins to form in the human fetus
    at about…. Weeks

    a.      
    16

    b.     
    20

    c.      
    25

    d.     
    30

    e.      
    34
    C
  41. 1.     
    As the stomach acquires its adult shape, it rotates around its
    longitudinal axis. Which of the following event does not result from this
    rotation?

    a.      
    The ventral border of the stomach moves to the right

    b.     
    The dorsal border moves to the left

    c.      
    The dorsal mesogastrium is carried to the left

    d.     
    The duodenum rotates to the right

    e.      
    The dorsal part of the stomach grows more rapidly
    E
  42. 1.     
    The pectinate line of the anus marks the junction of

    a.      
    Skin and mucous membrane

    b.     
    Splachnic and somatic mesoderm

    c.      
    Ectoderm derivatives and endodermal derivatives

    d.     
    Old amniotic cavity and yolk sac
    All
  43. 1.     
    The muscular wall of the esophagus arises from

    a.      
    Somatic mesoderm

    b.     
    Neural crest

    c.      
    Branchial arch VI

    d.     
    Lining of the yolk sac
    C
  44. 1.     
    Which of the following is associated with esophageal atresia

    a.      
    Tracheoesophageal fistula

    b.     
    Polyhydramnios

    c.      
    Deviation of the tracheoesophageal septum

    d.     
    Reflux milk through nose and mouth, which appears towards the end
    of the first week after birth
    A-C
  45. 1.     
    The terminal sac stage of lung development is characterized by the
    appearance of

    a.      
    Secondary bronchi

    b.     
    Tertiary bronchi

    c.      
    Respiratory bronchi

    d.     
    Surfactant

    e.
    Mature
    alveoli
    D ??.... not sure though that Vajner & Co have a different opinion on this :/
  46. 1.     
    The tracheoesophageal septum separates the

    a.      
    Laryngotracheal tube nasopharynx

    b.     
    Esophagus and nasopharynx

    c.      
    Laryngotracheal tube and esophagus

    d.     
    Laryngotracheal tube and oropharynx

    e.      
    Esophagus and oropharynx
    C
  47. 1.     
    The laryngotracheal diverticulum develops within the floor of the
    pharynx between arches:

    a.      
    I and II

    b.     
    II and III

    c.      
    III and IV

    d.     
    IV and VI

    e.      
    None of the above
    D
  48. 1.     
    The omental apron of the greater omentum

    a.      
    Communicates with the peritoneal cavity via the epiploic foramen of
    Winslow

    b.     
    Becomes retroperitoneal in the adult

    c.      
    Has the ascending colon located within its superior boundary

    d.     
    Is a quadruple layer of peritoneum

    e.      
    Is lost during embryonic development
    • - apron: portion of the greater omentum (cont. w/ gastrocolic lig, which hangs from the transv. colon)
    • - lesser sac: comminicates w/ omental bursa --> walls of this sac are DOUBLE layered peritoneum 2x2 = 4
  49. 1.     
    Which of the following statements concerning the development of the
    duodenum is false?

    a.      
    The duodenum rotates to the right side of the embryo during
    development

    b.     
    Most of the duodenum becomes intraperitoneal during development

    c.      
    The duodenum develops only from the caudal foregut

    d.     
    There is no lumen within the duodenum at some point in the
    development

    e.
    none
    of the above
    B, C
  50. 1.     
    Which of the following structures is most closely related to the
    development of the cloaca?

    a.      
    Liver

    b.     
    Stomach

    c.      
    Spleen

    d.     
    Duodenum

    e.      
    Pancreas

    f.      
    Gall bladder

    g.      
    Jejunum

    h.     
    Ileum

    i.       
    Cecum

    j.       
    Appendix

    k.     
    Ascending colon

    l.       
    Transverse colon

    m.   
    Descending colon

    n.     
    Sigmoid colon

    o.     
    Rectum
    O
  51. 1.     
    Which of the following structures is secondarily retroperitoneal
    and innervated by the Vagus nerve

    a.      
    Liver

    b.     
    Stomach

    c.      
    Spleen

    d.     
    Duodenum

    e.      
    Pancreas

    f.      
    Gall bladder

    g.      
    Jejunum

    h.     
    Ileum

    i.       
    Cecum

    j.       
    Appendix

    k.     
    Ascending colon

    l.       
    Transverse colon

    m.   
    Descending colon

    n.     
    Sigmoid colon

    o.
    Rectum
    • - Pancreas
    • - Duodenum
    • - Ascending colon
  52. 1.     
    Normal gut rotation brings which structure to lie at McBurney’s
    point

    a.      
    Liver

    b.     
    Stomach

    c.      
    Spleen

    d.     
    Duodenum

    e.      
    Pancreas

    f.      
    Gall bladder

    g.      
    Jejunum

    h.     
    Ileum

    i.       
    Cecum

    j.       
    Appendix

    k.     
    Ascending colon

    l.       
    Transverse colon

    m.   
    Descending colon

    n.     
    Sigmoid colon

    o.     
    Rectum
    Appendix
  53. 1.     
    Which of the followings structures is most closely related to the
    development both ventral and dorsal mesentery?

    a.      
    Liver

    b.     
    Stomach

    c.      
    Spleen

    d.     
    Duodenum

    e.      
    Pancreas

    f.      
    Gall bladder

    g.      
    Jejunum

    h.     
    Ileum

    i.       
    Cecum

    j.       
    Appendix

    k.     
    Ascending colon

    l.       
    Transverse colon

    m.   
    Descending colon

    n.     
    Sigmoid colon

    o.     
    Rectum
    Stomach

What would you like to do?

Home > Flashcards > Print Preview