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).
Sphincter of Oddi dysfunction refers to excessive spasm or scarring of the sphincter. This causes increased pressure in the bile duct, which produces pain in the right upper abdomen.7. Diagnosing this is tricky. Blood tests such as liver enzymes and bilirubin levels may or may not be abnormal.Doctors can be more certain if they can see the bile duct dilating on an ultrasound or other imaging study.Drugs are often prescribed to stop the pain. Nifedipine, a calcium channel blocker, is used because it reduces spasms and thereby helps relieve pain.his causes increased pressure in the bile duct, which produces pain in the right upper abdomen.7. Diagnosing this is tricky. Blood tests such as liver enzymes and bilirubin levels may or may not be abnormal.