| circ | circuit; circular; circumcision; circumference |
|---|---|
| CM | California mastitis [test]; calmodulin; capreomycin; carboxymethyl; cardiac murmur; cardiac muscle; ... |
| DICD | dispersion-induced circular dichroism |
| ICD | I-cell disease; immune complex disease; implantable cardioverter defibrillator; impulse-control diso... |
| MCD | magnetic circular dichroism; mast-cell degranulation; mean cell diameter; mean of consecutive differ... |
mouth to mask breathing
| DNA, circular | Any of the covalently closed DNA molecules found in bacteria, many viruses, mitochondria, plastids, and plasmids. Small, polydisperse circular DNA's have also been observed in a number of eukaryotic organisms and are suggested to have homology with chromosomal DNA and the capacity to be inserted into, and excised from, chromosomal DNA. It is a fragment of DNA formed by a process of looping out and deletion, containing a constant region of the mu heavy chain and the 3'-part of the mu switch region. Circular DNA is a normal product of rearrangement among gene segments encoding the variable regions of immunoglobulin light and heavy chains, as well as the T-cell receptor. (12 Dec 1998) |
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| apneustic breathing | Pauses in the respiratory cycle at full inspiration, caused by damage of the respiratory control centres in the more caudal pons. (05 Mar 2000) |
| ataxic breathing | Completely irregular breathing pattern, with continually variable rate and depth of breathing; results from lesions in the respiratory centres in the brainstem, extending from the dorsomedial medulla caudally to the obex. Synonym: ataxic breathing, Biot's breathing, respiratory ataxia. (05 Mar 2000) |
| Biot's breathing | Completely irregular breathing pattern, with continually variable rate and depth of breathing; results from lesions in the respiratory centres in the brainstem, extending from the dorsomedial medulla caudally to the obex. Synonym: ataxic breathing, Biot's breathing, respiratory ataxia. (05 Mar 2000) |
| Biot's breathing sign | <clinical sign> Irregular periods of apnea alternating with four or five deep breaths; seen with increased intracranial pressure. (05 Mar 2000) |
| breathing | 1. Respiration; the act of inhaling and exhaling air. "Subject to a difficulty of breathing." (Melmoth) 2. Air in gentle motion. 3. Any gentle influence or operation; inspiration; as, the breathings of the Spirit. 4. Aspiration; secret prayer. "Earnest desires and breathings after that blessed state." 5. Exercising; promotion of respiration. "Here is a lady that wants breathing too; And I have heard, you knights of Tyre Are excellent in making ladies trip." (Shak) 6. Utterance; communication or publicity by words. "I am sorry to give breathing to my purpose." (Shak) 7. Breathing place; vent. 8. Stop; pause; delay. "You shake the head at so long a breathing." (Shak) 9. Also, in a wider sense, the sound caused by the friction of the outgoing breath in the throat, mouth, etc, when the glottis is wide open; aspiration; the sound expressed by the letter h. 10. A mark to indicate aspiration or its absence. See Rough breathing, Smooth breathing, below. Breathing place. A pause. "That caesura, or breathing place, in the midst of the verse." . A vent. Breathing time, pause; relaxation. Breathing while, time sufficient for drawing breath; a short time. Rough breathing (spiritus asper) . See Asper, Smooth breathing (spiritus lenis), a mark (') indicating the absence of the sound of h, as in 'ienai (ienai). Source: Websters Dictionary (01 Mar 1998) |
| breathing bag | A collapsible reservoir from which gases are inhaled and into which gases may be exhaled during general anaesthesia or artificial ventilation. Synonym: reservoir bag. (05 Mar 2000) |
| breathing exercises | Therapeutic exercises aimed to deepen inspiration or expiration or even to alter the rate and rhythm of respiration. (12 Dec 1998) |
| breathing rate | <chest medicine, clinical sign> Also referred to as the respiratory rate. Measured as the number of breaths taken every minute. Normal resting adult respiratory rates are from 16-20 breaths per minute. The normal 1 year old infant can have a respiratory rate of 30 breaths per minute. Count the breaths taken in 30 seconds observing the rise and fall of the chest and then multiply this number by 2. (27 Sep 1997) |
| breathing reserve | The difference between the pulmonary ventilation (i.e., the volume of air breathed under ordinary resting conditions) and the maximum breathing capacity. (05 Mar 2000) |
| bronchial breathing | Breath sounds of a harsh or blowing quality, heard on auscultation of the chest, made by air moving in the large bronchi and barely, if at all, modified by the intervening lung; duration of the expiratory sound is as long as or longer than that of the inspiratory sound, and its pitch as high as or higher than that of the inspiratory sound; may be heard over a consolidated lung, above a pleural effusion due to an underlying compressed lung, and rarely over a pulmonary cavity; whispered pectoriloquy is another manifestation that usually can be elicited when bronchial breathing is present. (05 Mar 2000) |
| maximum breathing capacity | The volume of air breathed when an individual breathes as deeply and as quickly as possible for a given time (e.g., 15 sec.). Synonym: maximum breathing capacity. (05 Mar 2000) |
| glossopharyngeal breathing | Respiration unaided by the usual primary muscles of respiration; the air is forced into the lungs by use of the tongue and muscles of the pharynx. (05 Mar 2000) |
| mouth breathing | Abnormal breathing through the mouth, usually associated with obstructive disorders of the nasal passages. (12 Dec 1998) |
| work of breathing | Respiratory muscle contraction during inspiration. The work is accomplished in three phases: that required to expand the lungs against its elastic forces (lung compliance work), that required to overcome the viscosity of the lung and chest wall structures (tissue resistance work), and that required to overcome airway resistance during the movement of air into the lungs (airway resistance work). Work of breaking does not refer to expiration, which is entirely a passive process caused by elastic recoil of the lung and chest cage. (guyton, textbook of medical physiology, 8th ed, p406) (12 Dec 1998) |