English > canal: 4 senses > noun 2, body| Meaning | A bodily passage or tube lined with epithelial cells and conveying a secretion or other substance. |
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| Example | "the alimentary canal" |
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| Synonyms | duct, epithelial duct, channel |
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| Parts | ampulla | The dilated portion of a canal or duct especially of the semicircular canals of the ear |
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| Narrower | Haversian canal | Any of the many tiny canals that contain blood vessels and connective tissue and that form a network in bone |
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| alimentary canal, alimentary tract, digestive tube, digestive tract, gastrointestinal tract, GI tract | tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus |
| bronchiole | Any of the smallest bronchial ducts |
| canal of Schlemm, Schlemm's canal, sinus venosus sclerae | A circular canal in the eye that drains aqueous humor from the anterior chamber of the eye into the anterior ciliary veins |
| canaliculus | A small canal or duct / duct as in some bones and parts of plants |
| cartilaginous tube | A duct with cartilaginous walls |
| cerebral aqueduct, Sylvian aqueduct, aqueductus cerebri | A canal connecting the third and fourth ventricles |
| cervical canal, canalis cervicis uteri | A spindle-shaped canal extending from the uterus to the vagina |
| common bile duct, bile duct | A duct formed by the hepatic and cystic ducts |
| ductule, ductulus | A very small duct |
| ejaculatory duct | A part of the seminal duct formed by the duct from the seminal vesicle and the vas deferens |
| epididymis | A convoluted tubule in each testis |
| hepatic duct | The duct that drains bile from the liver |
| inguinal canal, canalis inguinalis | oblique passage through the lower abdominal wall |
| lacrimal duct, lachrymal duct, tear duct | Any of several small ducts that carry tears from the lacrimal glands |
| lactiferous duct | ducts of the mammary gland that carry milk to the nipple |
| lymph vessel, lymphatic vessel | A vascular duct that carries lymph which is eventually added to the venous blood circulation |
| nasolacrimal duct | A duct that carries tears from the lacrimal sac to the nasal cavity |
| pancreatic duct | A duct connecting the pancreas with the intestine |
| pore | Any small opening in the skin or outer surface of an animal |
| salivary duct | A duct through which saliva passes from the salivary gland into the mouth |
| seminal duct | The efferent duct of the testis in man |
| spinal canal, vertebral canal, canalis vertebralis | The canal in successive vertebrae through which the spinal cord passes |
| umbilical cord, umbilical | membranous duct connecting the fetus with the placenta |
| ureter | Either of a pair of thick-walled tubes that carry urine from the kidney to the urinary bladder |
| urethra | duct through which urine is discharged in most mammals and which serves as the male genital duct |
| vagina | The lower part of the female reproductive tract |
| vas deferens, ductus deferens | A duct that carries spermatozoa from the epididymis to the ejaculatory duct |
| venous sinus, sinus | A wide channel containing blood |
| Broader | passage, passageway | A path or channel or duct through or along which something may pass |
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| Spanish | canal, conducto, vía |
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| Catalan | canal, via |
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