respiratory tract

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Related to respiratory tracts: respiratory airway, Respiratory passages


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 ?
Research data: This study included one hundred and thirty-two children who had recurrent respiratory tract infection and were hospitalized in our hospital between April 2015 and June 2017.
Inclusion and exclusion criteria: Patients aged between 5 ~ 14 years and had the upper respiratory tract infection more than 5 times or the lower respiratory tract infection no less than 2 times in 12 months (the times of the upper respiratory tract infection can be supplemented by the times of the lower respiratory tract infection if the times of the upper respiratory infection was not sufficient) were included.
(7) Indeed, in a study by Lepiller et al., human coronavirus (HuCoV) was shown to contribute to 52% of upper respiratory tract infections in immunosuppressed patients and was closely associated with multiple infections.
Respiratory tract infections can be complex and multifaceted with underlying co-infections, often missed or overlooked once initial diagnosis is made, exacerbating serious illness.
"On the other hand, there doesn't seem to be anything to support the idea that vitamin D would help otherwise healthy people with normal, temporary respiratory tract infections."
For the present study now published in BMJ Open the researchers examined whether treatment with vitamin D can prevent and relieve respiratory tract infections in particularly infection-prone patients.
KEY WORDS: Environmental factors, Lower respiratory tract infection, Risk factors.
Risk factors for lower respiratory tract infections in children.
However, S-IgA Ab responses may also be induced through Th 1-dominated responses, as observed with intracellular pathogens such as Salmonella in the gastrointestinal tract (14) or influenza virus in the upper respiratory tract (15).
His research interests focus on the mucosal immune response in the respiratory tract, with an emphasis on viral immunity.
The study presented the major shifts in the patterns of medical deaths anticipated in the coming years and covered important information related to lower respiratory tract diseases.
Estimates indicate that 20 percent of the total deaths all over the world in coming years will be due to various lower respiratory tract infections, said Khattab.