By definition, organelles are the membrane-bound structures in a cell. The nucleus is an example. Other organelles are located in the cytoplasm such as mitochondria, chloroplasts, endoplasmic reticulum, Golgi apparatus, peroxisomes, lysosomes, vacuoles and glyoxisomes.An eukaryotic cell contains many mitochondria, occupying up to a quarter of the cytoplasmic volume.he nucleus is an example. Other organelles are located in the cytoplasm such as mitochondria, chloroplasts, endoplasmic reticulum, Golgi apparatus, peroxisomes, lysosomes, vacuoles and glyoxisomes.
Enlarged bile duct symptoms vary depending upon the cause of enlargement or dilation: Gallstones in bile duct leading to its enlargement: 1  Usually there is a long history of flatulent dyspepsia (eructation).
Many conditions in the pancreas, bile duct and gallbladder can block the bile duct. The most common causes of bile duct obstruction are primarily gallstones followed by bile duct cancer. These blockages in the bile duct can develop into life-threatening conditions, such as cirrhosis, biliary cancer, and jaundice.