The pathway of mandible during chewing is referred to as chewing cycle. Characterized by opening, closing, retrusive, protrusive & lateral jaw movements The chewing cycle can take many forms; classically tear drop shape when viewed in frontal or saggital plane There are about 15 chews in a series from the time of food entry until [...]
Bone Marrow Aspiration Needle
June 20, 2011 By Leave a Comment
Bone Marrow aspiration needle is an instrument used to aspirate Marrow from the Bone Bones commonly involved: Sternum or posterior iliac crests because they are superficial and make a note that all flat bones and vertebrae in the body contain bone marrow. Indications: Bone marrow infiltration: Leukaemia/lymphona Secondary carcinoma Myelofibrosis Cytopenias: Neutropenia thrombocytopenia Anemia Pancytopenia [...]
Lumbar Puncture Needle
June 20, 2011 By Leave a Comment
Lumbar Puncture Needle: It is a Needle which is used in the Lumbar Puncture Procedure Lumbar Puncture: It is a diagnostic and at times therapeutic procedure performed in order to collect a sample of cerebrospinal fluid (CSF) for biochemical, microbiological, and cytological analysis, or very rarely as a treatment (“therapeutic lumbar puncture”) to relieve increased [...]
Mitral Valve Stenosis
June 16, 2011 By Leave a Comment
Definition: Obstruction or narrowing of the Mitral valve. As the name suggests: Mitral valve: Valve in the heart, Stenosis: Abnormal narrowing in a blood vessel The valve orifice is slowly diminished by progressive fibrosis, leaflet calcification and fusion of the cusps and sub valvular apparatus. Restricted blood flow from the left atrium to left ventricle [...]
Laryngeal spasm
June 9, 2011 By Leave a Comment
Definition: Laryngospasm is an uncontrolled/involuntary muscular contraction (spasm) of the laryngeal cords This condition typically lasts for less than a minute This condition cause difficulty in Breathing in While breathing out remains easier Laryngospasm may be triggered when the vocal cords or the area of the trachea below the cords detects the entry of water, [...]
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