ANSWER THE FOLLOWING QUESTIONS 1. To what organ does the umbilical vein lead? 2.

Question

ANSWER THE FOLLOWING QUESTIONS 1. To what organ does the umbilical vein lead? 2. In humans, what structure is found at the junction of the small and large intestine? 3. a. What is the posterior opening of the digestive tract called? b. The anterior opening? 4. How many lobes (sections) does the pig liver have? 5. Wh ere does the bile duct lead to and what substance does it carry? 6. List the function of each organ below . Stomach . Esophagus Gall bladder .Small intestine Large intestine .Pancreas Liver 7. a. What structure separates the thoracic cavity from the abdominal cavity? b. Spasms of this muscle cause what problem? 8. List two organs found in the thoracic cavity. Describe the appearance of the inside of the stomach. b. How do the rugae within the stomach aid in mechanical digestion? 10. What is an ulcer? See last page for pig diagram to label.

Explanation / Answer

Answer 1. Placenta, through this structure the mother's blood passes into the growing fetus.

Answer 2. Caecum is present between the junction of both intestines. The primary role of it is to help in absorption and assimilation.

Answer 3. A. Anterior opening is mouth which contains oral cavity or buccal cavity composed of tongue with papillary, teeth. It helps in mastication of the food.

B. Posterior opening is a-n-u-s hrough which waste products are sent out.

Answer 4. The adult pig has 4 lobes namely quadrat, caudate, right and the left. Fetal liver has 5 lobes.

Answer 5. From liver, hepatic duct arises that unites with the gall bladder to form common bile duct.

Bile is produced by liver but stored and concentrated in the gall bladder. It helps in the emulsification of Fats but doesn't contain any lipase.

Answer 6.

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