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. 
B. 
C. 
Physiologic umbilical hernia
D. 
E. 
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. 
C. 
D. 
Congenital diaphragmatic hernia
E. 
5.
During week 4, the developing diaphragm is located at
A. 
B. 
C. 
D. 
E. 
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. 
C. 
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. 
B. 
C. 
D. 
E. 
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. 
B. 
C. 
Hypertrophic pyloric stenosis
D. 
Extrahepatic biliary atresia
E. 
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. 
B. 
C. 
Hypertrophic pyloric stenosis
D. 
Extrahepatic biliary atresia
E. 
10.
Which of the following arteries supplies foregut derivatives of the digestive system?
A. 
B. 
Superior mesenteric artery
C. 
Inferior mesenteric artery
D. 
E. 
11.
The most common type of anorectal malformation is
A. 
B. 
C. 
D. 
E. 
12.
The simple columnar or cuboidal epithelium lining the extrahepatic biliary ducts is derived from
A. 
B. 
C. 
D. 
E. 
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. 
B. 
C. 
D. 
E. 
14.
Which one of the following structures is derived from the midgut?
A. 
B. 
C. 
D. 
E. 
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. 
B. 
C. 
D. 
E. 
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. 
B. 
C. 
D. 
E. 
17.
Kupffer cells present in the adult liver are derived from
A. 
B. 
C. 
D. 
E. 
18.
The simple columnar and stratified columnar epithelia lining the lower part of the anal canal is derived from
A. 
B. 
C. 
D. 
E. 
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. 
B. 
C. 
Hypertrophic pyloric stenosis
D. 
Extrahepatic biliary atresia
E.