Quiz 5 Practice Questions Flashcards
A child is born and its parents are horrified to see that its first stool is tarry and sticky in consistency. What does this mean?
It is entirely normal meconium
Duodenal atresia:
a. Is due to the occurrence of recanalization.
b. Is usually in the most proximal portion of the duodenum.
c. Is often indicated by bilious emesis.
d. Is usually lethal.
c. Is often indicated by bilious emesis.
Which of these organs is supplied by the celiac trunk?
a. proximal duodenum
b. distal duodenum
c. vermiform appendix
d. ascending colon
a. proximal duodenum
Which of the following is NOT a derivative of the ventral mesentery?
a. The hepatogastric ligament
b. The visceral peritoneum of the liver and gall bladder
c. The greater omentum
d. The falciform ligament
c. The greater omentum
An Ileal (Meckel diverticulum):
a. Is very rare.
b. Is part of the normal cecum.
c. May be connected to the umbilicus by a fibrous cord or fistula
d. Is the same thing as appendicitis.
c. May be connected to the umbilicus by a fibrous cord or fistula
During rotation of the stomach:
a. The dorsal border becomes the lesser curvature.
b. Looking cranial to caudal, the stomach rotates clockwise 90 degrees
c. The left truck of the vagus moves posterior while the right moves anterior.
d. The part of the esophagus in the thorax does not rotate.
b. Looking cranial to caudal, the stomach rotates clockwise 90 degrees
The duodenum:
a. Rotates to the left.
b. Has a mesentery
c. Has a dual developmental origin
d. Rotates separately from the pancreas and liver.
c. Has a dual developmental origin
The cranial limb of the midgut loop makes:
a. The descending colon
b. The ascending colon
c. The sigmoid colon
d. The ileum
d. The ileum
The mesenchyme that divides the cloaca into the urogenital triangle and the anal triangle is the:
The urorectal septum
A baby girl is born with meconium present in her vaginal canal and the outward appearance of a urethra, vaginal canal and anus. Which abnormality does she likely have?
a. anorectal agenesis Incorrect
b. anal agenesis
c. membranous anal atresia
d. anal stenosis
b. anal agenesis
The cloaca is separated:
Into the rectum and urogenital sinus by the urorectal septum
The segment of the adrenal gland that secretes androgens develops from
intermediate mesoderm
Accessory renal arteries:
a. Are usually cranial to the celiac trunk.
b. Can compensate for one another.
c. Can form from the common iliac arteries. Incorrect
d. Are always present with a duplicated ureter.
a. Are usually cranial to the celiac trunk
The allantois:
a. Creates the genital tubercle.
b. Is directly connected to the cloacal membrane.
c. Is directly connected to the mesonephric duct.
d. Ablates in the median umbilical fold.
d. Ablates in the median umbilical fold.
An embryo in week 12 that had a low expression of TDF and a medium-high expression of Wnts could…..
Have testis internally, but externally be phenotypically female.
