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Ejaculatory duct
Ejaculatory duct A canal in the male formed by union of the vas deferens and the duct from the seminal vesicle. The ejaculatory duct passes through the prostate. Semen passes through them at the time of ejaculation.
RELATED TERMS--------------------------------------
Duct
A channel or passage through which fluids move.
Vesicle
1. A small, sac-like cavity. 2. A blister.
Prostate
A male sex gland that produces a thick fluid which forms part of semen.
Semen
The fluid containing sperm (the male reproductive cells) that is expelled (ejaculated) through the end of the penis when the man reaches sexual climax (orgasm).
Ejaculation
Ejaculation is the process of ejecting semen from the penis, and is usually accompanied by orgasm as a result of sexual stimulation. It may also occur spontaneously during sleep (called a nocturnal emission), due to stimulating of the prostate or, rarely, due to prostatic disease.
SIMILAR TERMS--------------------------------------
Ejaculate
The fluid emitted from a man's penis that contains sperm.
Ejaculation
Ejaculation is the process of ejecting semen from the penis, and is usually accompanied by orgasm as a result of sexual stimulation. It may also occur spontaneously during sleep (called a nocturnal emission), due to stimulating of the prostate or, rarely, due to prostatic disease.
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Ehrlichiosis
An acute (abrupt onset) disease, clinically similar to Rocky Mountain spotted fever with high fever, headache, malaise, and muscle pain but without a rash. Laboratory features include leukopenia (low white blood cell count), thrombocytopenia (low platelet count), mild anemia, and elevation in the levels of hepatic aminotransferase enzymes. Clinical symptoms and laboratory abnormalities respond promptly to therapy with the antibiotics tetracycline or doxycycline, and the majority of patients become afebrile within 24 to 48 hours after the start of such treatment. The diagnosis of ehrlichiosis rests on the detection of ehrlichia either by direct means or by the indirect means of serologic studies. Three methods are available for detection: inspection of peripheral-blood smears, PCR testing, and tissue culture.
Eicosapentaenoic acid
One of the principal omega-3 fatty acids. Abbreviated EPA. The body has a limited ability to manufacture EPA by converting the essential fatty acid, alpha-linolenic acid (ALA) which is found in flaxseed oil, canola oil or walnuts.
Eight-day measles
An acute highly contagious viral disease with fever, runny nose, cough, red eyes, and a spreading skin rash. The eight-day measles is the ordinary measles, also known as rubeola, a potentially disastrous disease. Measles may be complicated by ear infections, pneumonia, encephalitis (that can cause convulsions, mental retardation. and even death), the sudden onset of low blood platelet levels with severe bleeding (acute thrombocytopenic purpura) or a chronic brain disease that occurs months to often years after an attack of measles (subacute sclerosing panencephalitis). During pregnancy measles may trigger miscarriages or premature delivery. Measles can be prevented through vaccination. The disease is also called the hard measles and (depending on how long you think it lasts) the seven- day measles, the nine-day measles, or the ten-day measles, and morbilli.
Eighth cranial nerve
The eighth cranial nerve is the vestibulocochlear nerve. The vestibulocochlear nerve is responsible for the sense of hearing and it is also pertinent to balance, to the body position sense. Problems with the vestibulocochlear nerve may result in deafness, tinnitus (ringing or noise in the ears), dizziness, vertigo and vomiting. The 12 cranial nerves, the vestibulocochlear nerve included, emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge from the vertebral column.
Eisoptrophobia
An abnormal and persistent fear of mirrors. Sufferers experience undue anxiety even though they realize their fear is irrational. Because their fear often is grounded in superstitions, they may worry that breaking a mirror will bring bad luck or that looking into a mirror will put them in contact with a supernatural world inside the glass.
Ejaculatory duct
ELA2
The gene encoding the enzyme elastase 2 (neutrophilic elastase). Mutations in ELA2 cause cyclic neutropenia.
Elastase
An enzyme that digests and degrades a number of proteins including elastin, an elastic substance in the lungs and some other organs that supports their structural framework. Elastase is specifically inhibited by alpha-1 antitrypsin.
Elastase 1
Pancreatic elastase, a member of the pancreatic family of serine proteases. Although termed elastase, this powerful protease can hydrolyze numerous proteins, including elastin. The gene ELA1 that encodes elastase 1 is on chromosome 12q13.
Elastase 2
Neutrophil elastase, an enzyme in neutrophils that digests elastin. The gene ELA2 encoding elastase 2 is on chromosome 19p13,3. Mutations in ELA2 cause cyclic neutropenia, a blood disease in which there are regular cyclic fluctuations in the numbers of neutrophils and other blood cells. The cycles are classically 21 days but may range from 15 to 35 days. Patients with the disease typically have regularly recurring symptoms of fever, malaise, mucosal ulcers, and are at risk for life-threatening infections during periods of neutropenia.
Elastic fiber
A slender fiber in connective tissue that is rich in the protein elastin and has an elastic quality.
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