ductus deferens define
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DUCTUS DEFERENS The noun DUCTUS DEFERENS has 1 sense: 1. a duct that carries spermatozoa from the epididymis to the ejaculatory duct. Familiarity information: DUCTUS DEFERENS used as a noun is very rare.
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ampulla of Vater ampulla duc´tus deferen´tis (Henle's ampulla) the enlarged and tortuous distal end of the ductus deferens. hepatopancreatic ampulla ampulla of Vater; a flasklike cavity in the major duodenal papilla into which the common bile duct and pancreatic duct open.Hepatopancreatic ampulla, receiving the common bile and pancreatic ducts and entering the duodenum at the major duodenal papilla.mpulla duc´tus deferen´tis (Henle's ampulla) the enlarged and tortuous distal end of the ductus deferens. hepatopancreatic ampulla ampulla of Vater; a flasklike cavity in the major duodenal papilla into which the common bile duct and pancreatic duct open.
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- Definition of VAS DEFERENS. : a sperm-carrying duct especially of a higher vertebrate that in the human male is a thick-walled tube about two feet (0.61 meters) long that begins at and is continuous with the tail of the epididymis and eventually joins the duct of the seminal vesicle to form the ejaculatory duct.See vas deferens defined for kids. a sperm-carrying duct especially of a higher vertebrate that in the human male is a thick-walled tube about two feet (0.61 meters) long that begins at and is continuous with the tail of the epididymis and eventually joins the duct of the seminal vesicle to form the ejaculatory duct. See vas deferens defined for kids.
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Tracheoesophageal fistula Tracheoesophageal fistula. Definition. Tracheoesophageal fistula (TEF) is a birth defect in which the trachea is connected to the esophagus. In most cases, the esophagus is discontinuous (an esophageal atresia ), causing immediate feeding difficulties. The trachea, or windpipe, carries air to the lungs. The esophagus carries food to the stomach.
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Medical Dictionary Vas deferens: The tube that connects the testes with the urethra. The vas deferens is a coiled duct that conveys sperm from the epididymis to the ejaculatory duct and the urethra.
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blood vessel ductus arteriosus-a blood vessel in a fetus that bypasses pulmonary circulation by connecting the pulmonary artery directly to the ascending aorta; normally closes at birth. vasa vasorum-any small blood vessel ramifying on the outside of a major artery or vein.
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Male Reproductive System Vas deferens: The vas deferens is a long, muscular tube that travels from the epididymis into the pelvic cavity, to just behind the bladder. The vas deferens transports mature sperm to the urethra, the tube that carries urine or sperm to outside of the body, in preparation for ejaculation.Ejaculatory ducts: These are formed by the fusion of the vas deferens and the seminal vesicles (see below). The ejaculatory ducts empty into the urethra.he internal organs of the male reproductive system, also called accessory organs, include the following: Epididymis: The epididymis is a long, coiled tube that rests on the backside of each testicle. It transports and stores sperm cells that are produced in the testes.
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Ductus Deferens The tissue structure of the ductus deferens includes an inner lining of epithelial tissue; a middle layer of connective tissue and visceral muscle; and an outer layer of adventitia. 1  Pseudostratified columnar epithelium makes up the inner lining of the ductus deferens and contains many absorptive stereocilia.
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ductus venosus ductus venosus, the vascular channel in the fetus passing through the liver and joining the umbilical vein with the inferior vena cava. Before birth it carries highly oxygenated blood from the placenta to the fetal circulation.
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Patent Ductus Arteriosus The fetal ductus arteriosus is thus an important structure that is essential for normal fetal development, permitting right ventricular output to be diverted away from the high-resistance pulmonary circulation. Premature constriction or closure may lead to right heart failure, resulting in fetal hydrops.3.
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- The procedure is commonly done in two steps: First the surgeon must locate the vas deferens--the narrow tube that conveys sperm from the epidymis to the ejaculatory duct--and isolate it from the scrotum. Then, it must be obstructed (or occluded) so that the sperm can't flow to the testicles.
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Reproductive System The epididymis and the vas deferens make up the duct system of the male reproductive organs. The vas deferens is a muscular tube that passes upward alongside the testicles and transports the sperm-containing fluid called semen.The epididymis is a set of coiled tubes that connects to the vas deferens.he epididymis and the vas deferens make up the duct system of the male reproductive organs. The vas deferens is a muscular tube that passes upward alongside the testicles and transports the sperm-containing fluid called semen.
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Human Physiology/The male reproductive system The male reproductive system consists of the testes and a series of ducts and glands. Sperm are produced in the testes and are transported through the reproductive ducts. These ducts include the epididymis, vas deferens, ejaculatory duct and urethra.
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ductus arteriosus Define ductus arteriosus: a short broad vessel in the fetus that connects the pulmonary artery with the aorta and conducts most of the blood directly… a short broad vessel in the fetus that connects the pulmonary artery with the aorta and conducts most of the blood directly from the right…
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Ductus Deferens The location and function of the ductus deferens makes it a prime area for male contraception surgery.... Click to read more below. The ductus deferens, also known as the vas deferens, is a tiny muscular tube in the male reproductive system that carries sperm from the epididymis to the ejaculatory duct.lick to read more below. The ductus deferens, also known as the vas deferens, is a tiny muscular tube in the male reproductive system that carries sperm from the epididymis to the ejaculatory duct.
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Vas deferens From Wikipedia, the free encyclopedia. The vas deferens (or ductus deferens) is a duct in a man’s body. It is also present in other male vertebrates. Its function is to carry sperm away from the testes, towards the penis. There are two of these ducts, which are tubes surrounded by smooth muscle.
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patent ductus arteriosus Definition. 1  Patent ductus arteriosus (PDA) is a heart defect that occurs when the ductus arteriosus (the temporary fetal blood vessel that connects the aorta and the pulmonary artery) does not close at birth. 2  The ductus arteriosus is a temporary fetal blood vessel that connects the aorta and the pulmonary artery before birth.
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common bile duct ejaculatory duct the duct formed by union of the ductus deferens and the duct of the seminal vesicles, opening into the prostatic urethra on the colliculus seminalis. endolymphatic duct a canal connecting the membranous labyrinth of the ear with the endolymphatic sac.
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Epididymis Epididymis. The epididymis (plural, epididymides) is a tightly coiled mass of thin tubes that carries sperm from the testes to the ductus deferens in the male reproductive system. Sperm matures as it passes through the epididymis so that it is ready to fertilize ova by the time it enters the ductus deferens.pididymis. The epididymis (plural, epididymides) is a tightly coiled mass of thin tubes that carries sperm from the testes to the ductus deferens in the male reproductive system. Sperm matures as it passes through the epididymis so that it is ready to fertilize ova by the time it enters the ductus deferens.
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patent ductus arteriosus Patent ductus arteriosus (PDA) is a heart defect that occurs when the ductus arteriosus (the temporary fetal blood vessel that connects the aorta and the pulmonary artery) does not close at birth.
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Patent Ductus Arteriosus (PDA) The ductus arteriosus is a hole that allows the blood to skip the circulation to the lungs. However, when the baby is born, the blood must receive oxygen in the lungs and this hole is supposed to close. If the ductus arteriosus is still open (or patent) the blood may skip this necessary step of circulation. The open hole is called the patent ductus arteriosus. More information for...
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Male Reproductive System Vas deferens: The vas deferens is a long, muscular tube that travels from the epididymis into the pelvic cavity, to just behind the bladder. The vas deferens transports mature sperm to the urethra, the tube that carries urine or sperm to outside of the body, in preparation for ejaculation.pididymis: The epididymis is a long, coiled tube that rests on the backside of each testicle. It transports and stores sperm cells that are produced in the testes.
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- Definition of DUCTUS ARTERIOSUS. : a short broad vessel in the fetus that connects the pulmonary artery with the aorta and conducts most of the blood directly from the right ventricle to the aorta bypassing the lungs.
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DUCTUS DEFERENS The noun DUCTUS DEFERENS has 1 sense: 1. a duct that carries spermatozoa from the epididymis to the ejaculatory duct. Familiarity information: DUCTUS DEFERENS used as a noun is very rare.he noun DUCTUS DEFERENS has 1 sense: 1. a duct that carries spermatozoa from the epididymis to the ejaculatory duct. Familiarity information: DUCTUS DEFERENS used as a noun is very rare.
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Patent Ductus Arteriosus The Heart With Patent Ductus Arteriosus. The ductus arteriosus is a blood vessel that connects the aorta and pulmonary artery in unborn babies. This vessel allows blood to be pumped from the right side of the heart into the aorta, without stopping at the lungs for oxygen.
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vas deferens vas deferens. (vās' děf'ə-rěnz') Plural vasa deferentia (vā'zə děf'ə-rěn'shē-ə) Either of two ducts through which sperm passes from a testis to the outside of the body. In mammals, the vas deferens connects the testis to the urethra.