What's the difference between carina and pyxis?

Carina

Definition:

(n.) A keel
(n.) That part of a papilionaceous flower, consisting of two petals, commonly united, which incloses the organs of fructification
(n.) A longitudinal ridge or projection like the keel of a boat.
(n.) The keel of the breastbone of birds.

Example Sentences:

(1) One type of short-axon horizontal cell (HC) and one type of axonless HC are described in the retina of Carinae noctua, a crepuscular bird and Tyto alba, a pure nocturnal bird.
(2) The allegations over the speeding penalty points did not emerge until after the MP's 26-year marriage ended in 2010 as a result of his affair with his PR adviser Carina Trimingham.
(3) To maintain this important bilateral bronchial circulation, it is of capital importance not to mobilize the arteries individually and to avoid large dissections around the carina.
(4) The distance between the bevel end of the tube and the carina was determined with a fibreoptic bronchoscope.
(5) Positive end-expiratory pressure increased the bronchial blood flow at the tracheal carina and both bronchial carina (p less than 0.05).
(6) We present a case of carcinoma in situ located on the carina with excisional biopsy via a fiberoptic bronchoscope and no recurrence after five years.
(7) Seven consenting patients who required thoracotomy and 1-LV were anesthetized and their tracheas were intubated with the Univent BB tube; the BB was inserted into the appropriate mainstem bronchus until the proximal surface of the BB cuff was just distal to the tracheal carina.
(8) Only five cases have been reported in children (two of a lung, one of a mainstem bronchus, one of the carina, and one of the trachea).
(9) Forty-eight patients with carcinoma, but without gross neoplastic involvement of the main carina, underwent biopsy.
(10) We opened the thorax, cannulated the trachea 1 cm above the carina and ventilated the lungs through the lower airways with a Harvard respirator.
(11) The location of the obstruction was trachea in 16 patients, carina in 24, main bronchi in 8, and distal airway in 8.
(12) But in June 2010 Huhne told his family he was leaving Pryce as a newspaper had learned of his long-term affair with his PR adviser, Carina Trimingham, 46.
(13) Anastomoses were performed, respectively, at the level of the main carina (long single anastomosis), at the midpoint between the main carina and the bifurcation of the left main-stem bronchus (short single anastomosis), and just distal to the bifurcation of the left main-stem bronchus (lobar anastomosis).
(14) Laser Doppler velocimetry (LDV) and radioisotope studies using radio-labeled erythrocytes (RI) were used to measure blood flow at the donor main carina (DC) and upper lobe carina (DUC) after 3 h of reperfusion.
(15) So for the palliation of airway obstruction we inserted the silicone rubber T-tube stent from 0.5 cm above the vocal cord to 2 cm before the carina after endotracheal tumor resection with Nd-YAG laser.
(16) TBNA was positive for carcinoma in the two patients whose tracheal carinae appeared abnormal on computerized tomography.
(17) Fifty years later, Frostie, as his aristocratic nephews and nieces sometimes called him (his wife, Carina, was a daughter of the Duke of Norfolk), was still warding off brickbats from high-minded critics.
(18) We measured vocal cord-carina, oral-carina, and nasal-carina distances in situ at autopsy of two groups of infants (less than 1000 and greater than or equal to 1000 g).
(19) The tracheal mucosa was studied for histologic changes in the cilia, the epithelium, submucosal reaction, and mucus production at the level of the carina.
(20) Atropine abolished tracheal constriction induced by mechanical stimulation of the carina or aerosolized histamine, showing that the responses were mediated over vagal pathways.