Adrenal gland measurements include length and width in sagittal plane. Appendix size varies by age, commonly enlarged in cystic fibrosis. Bladder volume calculated using ellipsoid formula with specific measurements. Bowel wall thickness evaluated in transverse sections. Common bile duct diameter should be ≤ 3.3 mm
Portal vein carries blood from digestive tract to liver. Formed by superior mesenteric, inferior mesenteric, splenic veins. Located in right upper quadrant behind pancreas neck. Measures approximately 8 cm long in adults
CT is highly sensitive for diagnosing abdominal diseases and cancer. Used for acute abdominal pain, especially lower quadrants. First-line for detecting solid organ injury after trauma. MDCT provides clear delineation of abdominal structures
Lesser omentum is a double layer of peritoneum extending from liver to stomach and duodenum. Extends as double fold to porta hepatis, then to diaphragm and esophagus. Forms free margin at right border, forming anterior boundary of omental foramen
Sharks have cartilage skeletons with flexible collagenous fibers. They have eight fins: pectoral, pelvic, dorsal, anal, and caudal. Their skin is covered in placid scales called denticles. They can swim using two types of locomotor muscles: red and white
Digestive system consists of gastrointestinal tract and accessory organs. Gastrointestinal tract extends from mouth to anus, about 9 meters long. Accessory organs include liver, gallbladder, pancreas, tongue, and teeth