The common bile duct empties into which of the following structures of the gastrointestinal tract?
Jejunum
Ileum
Duodenum
Stomach
The Correct Answer is C
A. The jejunum is the middle part of the small intestine and is primarily involved in nutrient absorption, but it does not receive bile from the common bile duct.
B. The ileum is the final part of the small intestine, responsible for absorbing bile salts and vitamin B12, but it does not directly receive bile from the common bile duct.
C. The common bile duct empties bile into the duodenum, which is the first part of the small intestine. This allows bile to aid in the digestion and emulsification of fats.
D. The stomach is involved in the digestion of food but does not receive bile directly. Bile enters the small intestine, not the stomach
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Related Questions
Correct Answer is D
Explanation
A. The stomach plays a key role in digestion by breaking down food mechanically and chemically but does not play a significant role in nutrient absorption.
B. The large intestine is primarily involved in water and electrolyte absorption, as well as the formation of feces. It does not significantly contribute to nutrient absorption.
C. While some digestion begins in the mouth, particularly with enzymes in saliva, nutrient absorption does not occur there.
D. The small intestine is the primary site of nutrient absorption in the digestive system. Its walls are lined with villi and microvilli that increase surface area for the absorption of nutrients such as carbohydrates, proteins, fats, vitamins, and minerals.
Correct Answer is C
Explanation
A. Oogenesis is the process of egg cell (ovum) formation in females and is responsible for producing gametes, not somatic cells.
B. Spermatogenesis is the process of sperm cell formation in males, also producing gametes, not somatic cells.
C. Mitosis is the process that produces somatic cells. It is a type of cell division that results in two genetically identical daughter cells, each with the same number of chromosomes as the parent cell. Somatic cells are all body cells except for gametes.
D. Meiosis is the process that forms gametes (sperm and eggs), reducing the chromosome number by half to ensure sexual reproduction results in a normal chromosome count. It does not form somatic cells.
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