Tragus


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tragus

[′trā·gəs]
(anatomy)
The prominence in front of the opening of the external ear.
One of the hairs in the external ear canal.

Tragus

 

(1) In man and other mammals, the fold or prominence at the base of the pinna. The tragus is maximally developed in some bats. It is possible that the tragus serves as a supplementary screen to concentrate and direct the sound reaching the ear. When maximally developed, the tragus is part of the spatial hearing mechanism and helps to amplify the biologically most important sound frequencies.

(2) In birds, the tragus is the pyramidal bony or cartilaginous prominence at the junction of the inner bronchial walls (inferior larynx). It is possible that it may be used in sound transmission.


Tragus

 

a genus of annual or perennial herbs of the family Gramineae. The stems are spread out at the base and take root at the nodes. The leaf blades are stiff, short, and usually flat. The inflorescence is a spicate panicle with very short branches; the spikelets are one-flowered. The leathery upper glume, which is equal to the spikelet in length, has large, hooked thorns along the veins. There are six to ten species, distributed in subtropical, tropical, and warm-temperate regions of both hemispheres. The plants occur mainly in Africa. The USSR has one species, T. racemosus. An introduced plant, it is found in the southern European USSR, the Caucasus, and Middle Asia. T. racemosus grows in sandy and gravelly places, on rocky slopes, along roads, and as a weed in fields.

References in periodicals archive ?
Its incidence as a chief complaint in pediatric emergency departments is 25/100,000, and of all cases reported, the lobule (87%) and the pinna (11%) are the most common locations, while the tragus (2%) is the least reported.
Few reports exist describing isolated tragus reconstruction after excision of tumor in a nonirradiated field.
The mean distances of the zygomatic ligament from tragus (T-Z), lateral canthus (C-Z) and commissure (Com-Z) reference points were 66.50 [+ or -] 10.78 (48.0-80.0) mm, 29.60 [+ or -] 6.72 (20.0-39.0) mm and 56.30 [+ or -] 8.94 (44.0-70.0) mm, respectively.
Apollo Capital Management added it will commit PS20m of new money to Tragus once a company voluntary agreement is reached with landlords.
The mean horizontal distance of the zygomatic branch (the most upper one) as it emerged from the anterior border of the parotid gland and the tragus was 30.71 mm, whereas the mean vertical distance of the zygomatic branch from the midpoint between the tragus and the lateral palpebral commissure was 19.29 mm.
Jonathan Havenhand, head of acquisitions for Tragus Holdings, said: "Our property strategy is very much based on enabling our operators to deliver great food in distinctive and attractive restaurant surroundings.
The Tragus Group operates almost 300 sites across the country and this is Cafe Rouge's first venture into Coventry.
Chief Executive of Tragus, Graham Turner, said he was thrilled with the opening of the restaurant.
Tragus said its restaurant in the Metquarter was "no longer considered suitable" for the Cafe Rouge brand.
"School policy says students can have a small stud in each ear and the tragus is part of the ear so Dakota hasn't done anything wrong.
A size 7 Portex[TM] was selected and size checked between the patient's nares and tragus. Due to the patient's body habitus and difficulty in finding a wardsperson, the procedure was completed in a slumped supine position.
Tragus - which also runs the Cafe Rouge and Strada eateries - made pounds 44million in the year to the end of May.