Question

16 multiple answer 5 points
which of the following are components of the digestive tract?
liver
small intestine
mouth
stomach
pancreas
17 multiple answer 5 points
which types of hepatitis can cause chronic liver failure?
b
d
a
c
18 multiple choice 5 points
what term describes scarring of the liver?
hepatomegaly
hepatitis
jaundice
cirrhosis

Explanation:

• Question 16: The digestive tract (alimentary canal) is a continuous tube that includes the mouth (where digestion starts with mechanical and some chemical processes), the stomach (where food is further broken down by acid and enzymes), and the small intestine (where most nutrient absorption occurs). The liver and pancreas are accessory digestive organs that secrete substances (bile from the liver, pancreatic juice from the pancreas) into the digestive tract but are not part of the continuous tube of the digestive tract itself.
• Question 17: Hepatitis B (HBV), hepatitis C (HCV), and hepatitis D (HDV - which requires HBV for its replication) can cause chronic liver failure. Hepatitis A (HAV) typically causes acute hepatitis and does not lead to chronic liver failure.
• Question 18: Cirrhosis is the term for scarring of the liver. Hepatomegaly is an enlarged liver, hepatitis is inflammation of the liver, and jaundice is a yellowing of the skin and eyes due to bilirubin buildup (often a sign of liver or gallbladder problems but not the term for liver scarring).

Answer:

• Question 16: B. Small intestine, C. Mouth, D. Stomach
• Question 17: A. B, B. D, D. C
• Question 18: D. Cirrhosis