Block 6 GI Embryo Body Cavi BRS W Exp

19 Questions | By Chachelly | Last updated: Mar 22, 2022 | Total Attempts: 170

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Block 6 GI Embryo Body Cavi BRS W Exp - Quiz

Questions and Answers

1.

A congenital diaphragmatic hernia may result from failure of the
- A.
  
  Septum transversum to develop
- B.
  
  Pleuroperitoneal membranes to fuse in a normal fashion
- C.
  
  Pleuropericardial membrane to develop corn pletely
- D.
  
  Dorsal mesentery of the esophagus to develop
- E.
  
  Body wall to form the peripheral part of the diaphragm
2.

A congenital diaphragmatic hernia most commonly occurs
- A.
  
  On the right anteromedial side
- B.
  
  On the right posterolateral side
- C.
  
  On the left anteromedial side
- D.
  
  On the left posterolateral side
- E.
  
  Anywhere on the left side
3.

A congenital diaphragmatic hernia is usually life-threatening because it is associated with
- A.
  
  Pulmonary hypoplasia
- B.
  
  Pulmonary hyperplasia
- C.
  
  Physiologic umbilical hernia
- D.
  
  Liver hypoplasia
- E.
  
  Liver agenesis
4.

An 8-day-old boy presents with a history of complete loss of breath at times and of turning blue on a number of occasions. If the baby is placed in an upright or sitting position, his breathing improves. Physical exam reveals an unusually flat stomach when the newborn is lying down; auscultation demonstrates no breath sounds on the left side of the thorax. What is the diagnosis?
- A.
  
  Physiologic umbilical herniation
- B.
  
  Esophageal hiatal hernia
- C.
  
  Tetralogy of Fallot
- D.
  
  Congenital diaphragmatic hernia
- E.
  
  Tricuspid atresia
5.

During week 4, the developing diaphragm is located at
- A.
  
  C3, C4, C5
- B.
  
  T3, T4, T5
- C.
  
  T8, T9, T10
- D.
  
  1,1, L2, L3
- E.
  
  L4, L5, L6
6.

An apparently healthy newborn with a hardy appetite has begun feedings with formula. When she is laid down in the crib after feeding, she experiences projectile vomiting. Which of the following conditions is a probable cause of this vomiting?
- A.
  
  Physiologic umbilical herniation
- B.
  
  Esophageal hiatal hernia
- C.
  
  Tetralogy of 1:allot
- D.
  
  Congenital diaphragmatic hernia
- E.
  
  Tracheoesophageal fistula
7.

Pancreatic islets consist of alpha, beta, and delta cells, which secrete glucagon, insulin, and somatostatin, respectively. These cells are derived from
- A.
  
  Mesoderm
- B.
  
  Endoderm
- C.
  
  Ectoderm
- D.
  
  Neuroectoderm
- E.
  
  Neural crest cells
8.

A 2-month-old baby with severe jaundice also has dark-colored urine (deep yellow) and white clay-colored stool. Which of the following disorders might be suspected?
- A.
  
  Esophageal stenosis
- B.
  
  Annular pancreas
- C.
  
  Hypertrophic pyloric stenosis
- D.
  
  Extrahepatic biliary atresia
- E.
  
  Duodenal atresia
9.

A 28-day-old baby is brought to the physician because of projectile vomiting after feeding. Until this time, the baby has had no problems in feeding. On examination, a small knot is palpated at the right costal margin. Which of the following disorders might be suspected?
- A.
  
  Esophageal stenosis
- B.
  
  Annular pancreas
- C.
  
  Hypertrophic pyloric stenosis
- D.
  
  Extrahepatic biliary atresia
- E.
  
  Duodenal atresia
10.

Which of the following arteries supplies foregut derivatives of the digestive system?
- A.
  
  Celiac trunk
- B.
  
  Superior mesenteric artery
- C.
  
  Inferior mesenteric artery
- D.
  
  Right umbilical artery
- E.
  
  Intercostal artery
11.

The most common type of anorectal malformation is
- A.
  
  Imperforate anus
- B.
  
  Anal agenesis
- C.
  
  Anorectal agenesis
- D.
  
  Rectal atresia
- E.
  
  Colonic aganglionosis
12.

The simple columnar or cuboidal epithelium lining the extrahepatic biliary ducts is derived from
- A.
  
  Mesoderm
- B.
  
  Endoderm
- C.
  
  Ectoderm
- D.
  
  Neuroectoderm
- E.
  
  Neural crest cells
13.

A 4-day-old baby boy has not defecated since coming home from the hospital even though feeding has been normal without any excessive vomiting. Rectal examination reveals a normal anus, anal canal, and rectum. However, a large fecal mass is found in the colon, and a large release of flatus and feces follows the rectal examination. Which of the following conditions would be suspected?
- A.
  
  Imperforate anus
- B.
  
  Anal agenesis
- C.
  
  Anorectal agenesis
- D.
  
  Rectal atresia
- E.
  
  Colonic aganglionosis
14.

Which one of the following structures is derived from the midgut?
- A.
  
  Appendix
- B.
  
  Stomach
- C.
  
  Liver
- D.
  
  Pancreas
- E.
  
  Sigmoid colon
15.

A 3-month-old baby girl presents with a swollen umbilicus that has failed to heal normally. The umbilicus drains secretions, and there is passage of fecal material through the umbilicus at times. What is the most likely diagnosis?
- A.
  
  Omphalocele
- B.
  
  Gast roschisis
- C.
  
  Anal agenesis
- D.
  
  Ileal diverticulum
- E.
  
  Intestinal stenosis
16.

The midgut loop normally herniates through the primitive umbilical ring into the extraembryonic coelom during week 6 of development. Failure of the intestinal loops to return to the abdominal cavity by week 11 results in the formation of
- A.
  
  Omphalocele
- B.
  
  Gastroschisis
- C.
  
  Anal agenesis
- D.
  
  Ileal diverticulum
- E.
  
  Intestinal stenosis
17.

Kupffer cells present in the adult liver are derived from
- A.
  
  Mesoderm
- B.
  
  Endoderm
- C.
  
  Ectoderm
- D.
  
  Neuroectoderm
- E.
  
  Neural crest cells
18.

The simple columnar and stratified columnar epithelia lining the lower part of the anal canal is derived from
- A.
  
  Mesoderm
- B.
  
  Endoderm
- C.
  
  Ectoderm
- D.
  
  Neuroectoderm
- E.
  
  Neural crest cells
19.

A baby born to a young woman whose pregnancy was complicated by polyhydramnios was placed in the intensive care unit because of repeated vomiting containing bile. The stomach was markedly distended, & only small amounts of meconium had passed through the anus. What is the most likely diagnosis?
- A.
  
  Esophageal stenosis
- B.
  
  Annular pancreas
- C.
  
  Hypertrophic pyloric stenosis
- D.
  
  Extrahepatic biliary atresia
- E.
  
  Duodenal atresia