2. DIGESTIVE SYSTEM 01
51/2 WEEK EMBRYO: Identify the ESOPHAGUS (3), STOMACH (9), HEPATIC DIVERTICULUM (8), MIDGUT (7), and MESONEPHROS (6) on this dissected human embryo.

4. DIGESTIVE SYSTEM 02
MIDGUT AT 7 WEEKS. Identify MIDGUT HERNIATION, UMBILICAL CORD, ABDOMINAL CAVITY.

6. MIDGUT HERNIATION AT 7.75 WEEKS.
DIGESTIVE SYSTEM 03
MIDGUT HERNIATION AT 7.75 WEEKS.

8. MIDGUT HERNIATION AT 8 WEEKS.
DIGESTIVE SYSTEM 04
MIDGUT HERNIATION AT 8 WEEKS.

10. DIGESTIVE SYSTEM 05
CROSS SECTION AT 8 WEEKS. Identify AORTA (1), SPINAL CORD (7), STOMACH (8), LIVER (6), KIDNEY (5), HERNIATED MIDGUT (4), AMNION, UMBILICAL CORD.

12. DIGESTIVE SYSTEM 06
UMBILICAL HERNIA: Note the location of the umbilical cord arising from the apex of the hernia.

14. UMBILICAL HERNIA: Identify an umbilical hernia in an older child.
DIGESTIVE SYSTEM 07
UMBILICAL HERNIA: Identify an umbilical hernia in an older child.

16. OMHPHALOCELE (STILLBORN): Explain the cause of this defect.
DIGESTIVE SYSTEM 08
OMHPHALOCELE (STILLBORN): Explain the cause of this defect.

18. DIGESTIVE SYSTEM 09
OMHPHALOCELE (neonate): Explain the cause of this defect. Identify the coverings of the extruded gut.

20. OMPHALOCELE: Note the location of the umbilical cord in omphalocele.
DIGESTIVE SYSTEM 10
OMPHALOCELE: Note the location of the umbilical cord in omphalocele.

22. DIGESTIVE SYSTEM 11
GASTROSCHISIS: This 30 minute old neonate has gastroschisis. Distinguish between gastroschisis and omphalocele in appearance. What is the embryological basis for gastroschisis?

24. DIGESTIVE SYSTEM 12
GASTROSCHISIS: Note the absence of covering and the location of the umbilical cord in gastroschisis.

26. DIGESTIVE SYSTEM 13
GASTROSCHISIS: Gastroschisis following vaginal delivery. Note difference between this neonate the neonate in slides 6 and 7.

28. DIGESTIVE SYSTEM 14
ANAL ATRESIA (male): Identify anal atresia. What structure failed to develop in this infant?

30. DIGESTIVE SYSTEM 15
ANAL ATRESIA (female): Identify anal atresia. What structure failed to develop in this infant?

32. DIGESTIVE SYSTEM 16
CYSTIC FIBROSIS: This liver is from an infant with cystic fibrosis. Note the cystic structures. Why does the liver become involved in this disease?

34. DIGESTIVE SYSTEM 17
MECONIUM ILEUS: Explain how this lesion may occur is association with cystic fibrosis.