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.
Apollo Capital Management added it will commit PS20m of new money to Tragus once a company voluntary agreement is reached with landlords.
Wilhelmi et al 2003 (1), studied temporal branch of facial nerve by using landmarks as anterior edge of parotid gland from tragus and mesenteric tuberosity along the zygomatic arch, The risk for facial nerve injury has been reported to be increased with the inclusion of superficial musculoaponeurotic system (SMAS) elevation as compared with a skin-only face lift.
Tragus Holdings now has 125 Cafe Rouge and 90 Bella Italia stores across the West Midlands, as well several of its Strada brand.
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.
Private equity-owned Tragus reckons it's serving up a successful recipe of well-placed restaurants and good-value food.
The 3D displacements of the thorax to the pelvis were sampled with a 3D-electrogoniometer during right and left arabesque, developpe a la seconde and pied-en-main, and a photographic technique was used to calculate lower-limb elevation, shoulder inclination, and tragus or C7 displacement.
Tragus Holdings Ltd, the independent restaurant group have unveiled The Tragus Development and Training centre; a new facility for the development of teams and menus across the group's 153 restaurants, including Bella Pasta and Cafe Rouge.
Smaller groups, increasingly owned by private-equity firms, include Gondola Holdings (PizzaExpress), Tragus Holdings (Cafe Rouge, Strada, etc.
We conducted a cadaveric study to determine the size of cartilage grafts that can be taken from the tragus without distorting tragal anatomy.