respiratory tract


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tract

 [trakt]
a longitudinal assemblage of tissues or organs, especially a number of anatomic structures arranged in series and serving a common function, such as the gastrointestinal or urinary tract; also used in reference to a bundle (or fasciculus) of nerve fibers having a common origin, function, and termination within the central nervous system.
alimentary tract alimentary canal.
biliary tract the organs, ducts, and other structures that participate in secretion (the liver), storage (the gallbladder), and delivery (hepatic and bile ducts) of bile into the duodenum. See illustration.
Anatomy of the gallbladder and biliary tract. From Aspinall and Taylor-Robinson, 2002.
corticospinal t's two groups of nerve fibers (the anterior and lateral corticospinal tracts) that originate in the cerebral cortex and run through the spinal cord.
digestive tract alimentary canal.
dorsolateral tract a group of nerve fibers in the lateral funiculus of the spinal cord dorsal to the posterior column.
extrapyramidal tract extrapyramidal system.
gastrointestinal tract the stomach and intestine in continuity; see also digestive system.
iliotibial tract a thickened longitudinal band of fascia lata extending from the tensor muscle downward to the lateral condyle of the tibia.
intestinal tract see intestinal tract.
optic tract the nerve tract proceeding backward from the optic chiasm, around the cerebral peduncle, and dividing into a lateral and medial root, which end in the superior colliculus and lateral geniculate body, respectively.
pyramidal t's collections of motor nerve fibers arising in the brain and passing down through the spinal cord to motor cells in the anterior horns.
respiratory tract respiratory system.
urinary tract the organs and passageways concerned in the production and excretion of urine from the kidneys to the urinary meatus; see also urinary system.
uveal tract the vascular tunic of the eye, comprising the choroid, ciliary body, and iris.

res·pi·ra·to·ry tract

the air passages from the nose to the pulmonary alveoli, through the pharynx, larynx, trachea, and bronchi.

res·pi·ra·to·ry tract

(res'pir-ă-tōr-ē trakt)
The air passages from the nose to the pulmonary alveoli, through the pharynx, larynx, trachea, and bronchi.

Respiratory tract

The air passages from the nose to the air sacs of the lungs, including the pharynx, larynx, trachea, and bronchi.

res·pi·ra·to·ry tract

(res'pir-ă-tōr-ē trakt)
The air passages from the nose to the pulmonary alveoli.
References in periodicals archive ?
If respiratory tract infection had no occurrence in 6 months after treatment, it was considered that the therapy cured the children.
For example, the rate of all lower respiratory tract infections with severe hypoxemia--with no requirement for demonstration of RSV infection--was reduced by 46% during the first 90 days of life in the immunized group.
Information on socio-demographic variables including child's age, gender and also symptoms of acute lower respiratory tract infection, such as the presence and duration of fever associated with chills, cough, nasal discharge, breathlessness or fast breathing and abdominal pain was taken.
Vitamin D3 supplementation and upper respiratory tract infections in a randomized, controlled trial.
The knowledge of etiology of pathogens in patients of lower respiratory tract infections will be helpful for the empirical drug choice 19.
The majority of the studies (78%; 55/70) were reports on patients suffering from respiratory tract infection and 21.4% (15/70) were reports on patients suffering from diarrheal disease.
Children who had suffered from lower respiratory tract infections, such as bronchitis, bronchiolitis, pneumonia and general chest infections, had a two- to four-fold increased risk of developing asthma in later life and were also more likely to have worse lung function.
Visit Bovine Respiratory Disease Treatment Market by Disease Type (Diphtheria, Pneumonia/Lower Respiratory Tract Infection, Upper Respiratory Tract Infections), Treatment Type (Antibiotics, Immunomodulators, NSAIDs, Vaccines, Others), and End Users (Private Veterinary Pharmacies, Veterinary Clinics, Veterinary Hospitals, Veterinary Research Institutes, Others) and Forecast 2017-2021 at https://www.ihealthcareanalyst.com/report/bovine-respiratory-disease-treatment-market/
Human bocavirus (HBoV) is a newly described human pathogen that has been frequently associated with upper and lower respiratory tract infections.
"[Existing] epidemiological and in vitro data have prompted numerous randomized controlled trials to determine whether vitamin D supplementation can decrease the risk of acute respiratory tract infection," wrote the authors of the study, led by Adrian R.
The drop in temperature results in increase the cases of chronic bronchitis and lower respiratory tract infection like pneumonia," she added.

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