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

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Presentation transcript:

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.

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

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

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

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.

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

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

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

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

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

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?

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

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

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

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

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?

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