Digestive
14 structures
Liver
The liver is the largest internal organ, weighing approximately 1.5 kg in adults, located in the right upper quadrant beneath the ...
Stomach
The stomach is a J shaped muscular organ between the esophagus and duodenum, with four regions cardia, fundus, body, and pylorus. ...
Small Intestine
The small intestine is approximately 6 to 7 meters long in vivo shorter post mortem due to muscle relaxation and has three segment...
Large Intestine
The large intestine colon is approximately 1.5 meters long and includes the cecum, ascending colon, transverse colon, descending c...
Esophagus
The esophagus is a muscular tube approximately 25 cm long connecting the pharynx to the stomach. It passes through the diaphragm a...
Gallbladder
The gallbladder is a pear shaped sac approximately 7 to 10 cm long located under the liver, storing and concentrating bile between...
Salivary Glands
The major salivary glands produce approximately 1 to 1.5 liters of saliva daily. Three pairs: parotid largest, near the ear, Stens...
Teeth
Adults have 32 teeth: 8 incisors cutting, 4 canines tearing, 8 premolars crushing, 12 molars grinding including 4 wisdom teeth thi...
Liver Lobules
The hepatic lobule is the functional unit of the liver. The classic lobule is hexagonal with a central vein and portal triads at e...
Duodenum
The duodenum is the first and shortest part of the small intestine, forming a C shaped curve around the head of the pancreas betwe...
Rectum
The rectum is the final straight section of the large intestine, lying in the pelvis in front of the sacrum and continuing from th...
Bile Ducts
The bile ducts, or biliary tree, are a network of tubes that carry bile from the liver to the small intestine. Tiny bile canalicul...
Peritoneum
The peritoneum is the largest serous membrane in the body. Its parietal layer lines the inner walls of the abdomen and pelvis, and...
Bile
Bile is a yellow green fluid produced continuously by liver cells, stored and concentrated in the gallbladder, and released into t...