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Information about Crepitus

This article is about the medical term Crepitus. For the Roman god, see Crepitus (mythology).


Crepitus is a medical term to describe the grating, crackling or popping sounds and sensations experienced under the skin and joints. The sound can be created when two rough surfaces in the human body come into contact - for example, in osteoarthritis when the cartilage around joints has eroded away and the joint ends grind against one another, or when the fracture surfaces of two broken bones rub together. In soft tissues, crepitus can be produced when gas is introduced into an area where it normally isn't present. The term can also be used when describing the sounds produced by lung conditions such as emphysema. Crepitus is often loud enough to be heard by the human ear, although a stethoscope may be needed to detect instances caused by respiratory diseases. In times of poor surgical practice, post-surgical complications involved anaerobic infection by Clostridium perfringens strains, which can cause gas gangrene in tissues, also giving rise to crepitus.

In reference to a possible fracture, crepitus is the sound or sensation (discovered on palpation) made by the two ends of a fractured bone.
Roman mythology, the mythological beliefs of the people of Ancient Rome, can be considered as having two parts. One part, largely later and literary, consists of whole-cloth borrowings from Greek mythology.
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Crepitus is an alleged Roman god of flatulence. It is unlikely that this deity was ever actually worshipped; the only ancient source for the claim that such a god was ever worshipped comes from Christian satire.
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Sound is a disturbance of mechanical energy that propagates through matter as a wave (through fluids as a compression wave, and through solids as both compression and shear waves).
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Osteoarthritis
Classification & external resources

ICD-10 M 15. -M 19. , M 47.
ICD-9 715

OMIM 165720
DiseasesDB 9313
MedlinePlus 000423
eMedicine med/1682   orthoped/427 pmr/93 radio/492
MeSH D010003


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Cartilage is a type of dense connective tissue. It is composed of collagen fibers and/or elastin fibers, and can supply smooth surfaces for the movement of articulating bones.
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Released October 31, 2007
Genre J-Pop
Length N/A
Label Geneon
Producer(s) I've Sound

Mami Kawada singles chronology

Get my way!
(2007) JOINT
(2007)

JOINT
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Emphysema
Classification & external resources

H&E (haematoxylin and eosin) stained lung tissue sample from an end-stage emphysema patient. RBCs are red, nuclei are blue-purple, other cellular and extracellular material is pink, and air spaces are white.
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outer ear is the most external portion of the ear. The outer ear includes the pinnae (also called auricle), the ear canal, and the very most superficial layer of the ear drum (also called the tympanic membrane).
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The stethoscope (Greek στηθοσκόπιο, of στήθος, stéthos - chest and σκοπή, skopé - examination
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C. perfringens

Binomial name
Clostridium perfringens
Veillon & Zuber 1898
Hauduroy et al. 1937

Clostridium perfringens (formerly known as Clostridium welchii
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Gas gangrene
Classification & external resources

ICD-10 A 48.0
ICD-9 040.0

DiseasesDB 31141

eMedicine med/843   emerg/211 med/394
MeSH D005738 Gas gangrene
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fracture is the (local) separation of a body into two, or more, pieces under the action of stress.

The word fracture is often applied to bones of living creatures, or to crystals or crystalline materials, such as gemstones or metal.
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Palpation is used as part of a physical examination in which an object is felt (usually with the hands of a healthcare practitioner) to determine its size, shape, firmness, or location.
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Bones are rigid organs that form part of the endoskeleton of vertebrates. They function to move, support, and protect the various organs of the body, produce red and white blood cells and store minerals.
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