86: What is the name of the vessel that delivers the nutrient rich blood from the stomach & small intestine to the liver ?
(a) Left hepatic artery
(b) Hepatic portal vein
(c) Right hepatic artery
(d) Hepatic vein
Explanation:
Nutrient rich blood from the stomach and small intestine containing minerals and vitamins like A, D, E and K is collected and stored in liver delivered from hepatic portal vein. The B vitamins are also stored in liver, including a two to four year supply of Vitamin B12.
87: The blood glucose level is commonly expressed as
(a) mm of Hg
(b) milligram per decilitre
(c) parts per million
(d) grams per litre
88: Water which contains soluble salts of calcium and magnesium is known as
(a) Heavy water
(b) Soft water
(c) Hard water
(d) Mineral water
89: Which of the following is/are the example /examples of chemical change ?
1. Crystallization of sodium chloride.
2. Melting of ice
3. Sourcing of milk
Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 3 only
(c) 1, 2 and 3
(d) None
90: Consider the following statements with reference to human body :
1. The common bile duct release its contents into stomach.
2. The pancreatic duct releases its contents into duodenum.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Explanation:
Liver secretes bile which contains bile pigments and bile salts. The bile secreted by the liver cells is normally stored in the gall bladder. The common bile duct delivers contents directly to the duodenum when the gall bladder contracts, in response to a meal.
Pancreas is a large gland which secretes digestive enzymes as well as the hormones, insulin and glucagon. The pancreatic duct runs the length of pancreas and empties into the second part of the duolenum at the ampulla of vater.