Duct
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Duct (Medicine)
Duct (/dʌkt/), in the field of medicine, refers to a tube, channel, or passage that conveys fluids or semi-fluid substances in the body. The term is derived from the Latin word ductus, which means "leading".
Types of Ducts
There are several types of ducts in the human body, each serving a specific function. Some of the most notable include:
- Bile Duct: A series of thin tubes that go from the liver to the small intestine. The main function of the bile duct is to transport bile from the liver and gallbladder to the small intestine.
- Lymphatic Duct: These are large ducts in the lymphatic system that return lymph to the blood.
- Salivary Duct: These ducts transport saliva from the salivary glands into the mouth.
- Pancreatic Duct: This duct carries digestive enzymes and juices from the pancreas to the small intestine.
- Tear Duct: Also known as the nasolacrimal duct, it drains tears from the eyes into the nasal cavity.
Related Terms
- Ductus Arteriosus: A blood vessel in a developing fetus that bypasses pulmonary circulation by connecting the pulmonary artery directly to the ascending aorta.
- Ductus Deferens: Also known as the vas deferens, it is part of the male reproductive system that carries sperm from the epididymis to the ejaculatory ducts.
- Ductus Venosus: A small vein in the fetus that diverts some blood flow away from the liver and towards the heart.
See Also
External links
- Medical encyclopedia article on Duct
- Wikipedia's article - Duct
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