carina

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carina

 [kah-ri´nah] (pl. cari´nae) (L.)
a ridgelike structure.
carina tra´cheae a downward and backward projection of the lowest tracheal cartilage, forming a ridge between the openings of the right and left principal bronchi.
carina urethra´lis vagi´nae the column of rugae in the lower anterior wall of the vagina, immediately below the urethra.

ca·ri·na

, pl.

ca·ri·nae

(kă-rī'nă, -rī'nē),
1. In humans, a term applied or applicable to several anatomic structures forming a projecting central ridge.
2. That portion of the sternum in a bird, bat, or mole that serves as the origin of the pectoral muscles; it is not found in flightless birds or in most mammals.
[L. the keel of a boat]

carina

/ca·ri·na/ (kah-ri´nah) pl. cari´nae   [L.] a ridgelike structure.
carina tra´cheae  a downward and backward projection of the lowest tracheal cartilage, forming a ridge between the openings of the right and left principal bronchi.
carina urethra´lis vagi´nae  the column of rugae in the lower anterior wall of the vagina, immediately below the urethra.

carina

(kə-rī′nə, -rē′-)
n. pl. cari·nae (-nē)
A keel-shaped ridge or structure, such as that on the breastbone of a bird or of the fused lower two petals of flowers of many members of the pea family.

carina

[kərē′nə] pl. carinae
Etymology: L, keel
any structure shaped like a ridge, cleft, or keel, such as the carina of the trachea, which projects from the lowest tracheal cartilage.

ca·ri·na

,pl. carinae (kă-rī'nă, -nē)
A term applied to anatomic structures forming a projecting central ridge.
[L. the keel of a boat]

carina

(ka-ri'na) plural.carinae [L., keel of a boat]
A structure with a projecting central ridge.

carina nasi

The nasal carina.

nasal carina

Olfactory nasal sulcus.
Enlarge picture
CARINA OF THE TRACHEA: seen bronchoscopically

carina of the trachea

The ridge at the lower end of the trachea separating the openings of the two primary bronchi.
See: illustration

carina tracheae

The carina of the trachea.

carina of the urethra

The ridge extending posteriorly from the urethral orifice and continuous with the anterior column of the vagina.

carina urethralis

The carina of the urethra.

carina

Any keel-shaped ridge in the body, especially the ridge formed where the TRACHEA divides into the two bronchi.

carina

or

keel

  1. the keel-shaped edge of a leguminous flower, consisting of two fused lower petals. This may have a role in pollination, acting, for example, as a landing platform for bees.
  2. the breast-bone of a bird.

carina

pl. carinae [L.] a ridgelike structure.

carina apex
the most cranial point of the keel of the sternum of birds.
sternal carina
the keel of the sternum, as in birds and horses.
carina tracheae
a ridge between the openings of the right and left principal bronchi.
References in periodicals archive ?
5:1) projecting beyond eyes about one-third of its length, basal compartment occupying approximately more than basal third, conspicuous submedian carinae forming narrow triangular area towards the fastigium (Fig.
Tergites: I-VI completely smooth or slightly granular near the posterior margin; VII slightly granular in the posterior half, with four longitudinal carinae (two paramedians, two laterals) marked by coarse granulation, the lateral carinae occupying almost the entire length of the segment, whereas the paramedian carinae are restricted to the posterior half of the segment.
Scutellar disc more or less ridged, with longitudinal carinae hardly defined that can form or not the scutellar sulcus.
A very short carinae runs below the eye into the central lower area.
Conspicuous parallel carinae on front of head and pro- and mesonotum; length 2 mm or less; color dark reddish brown cooperi sp.
31x as long as apical area; dorsolateral area granulate, dull, finely and densely punctate (punctures sometimes indistinct); apical area rounded or roundly pointed anteriorly, granulate, without distinct punctures; apical longitudinal carinae anteriorly weak, reaching or not reaching transverse carina.
Dubbed the "Great Eruption," the outburst lasted from 1837 to 1858 and temporarily made Eta Carinae the second brightest star in the sky.
Body surface dull, granulose, rugulose and to a variable degree tuberculate, more rarely spinose or lobate; the thorax with a distinct longitudinal median carina dorsally, abdominal tergites II-IX with two strongly approaching longitudinal median carinae.
These latest results suggest Eta Carinae is not alone.
Propodeum with lateromedian longitudinal carinae parallel anteriorly, rather evenly rounded posteriorly; anterior transverse carina well behind front margin of propodeum where it joins the lateromedian longitudinal carina; area externa trapezoidal, large, with few setiferous pubescence.
The two orbiting stars form the Eta Carinae system, some 7,500 light-years from Earth.