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This person was bitten by a spider ,but little did he know that it had been a recluse spider!
Leaving it untreated allowed the venom to cause these lesions . Scientists say this venom contains a rare protein that can cause a lesion as well as a much less common, but more dangerous systemic reaction in humans..
The most common response is inflammation, which ,aftr one to two days can develop into a "dark lesion" surrounding the bite site.
The blackining, or " necrosis" ,of the skin is dead skin cells, evidence of the immune systems effort to prevent the spread of the toxin by preventing blood flow to the affected area.
Answer: A. Fingerprints
Identical twins have the same DNA, but their fingerprints
(dactylography) are still diferent and they do not change.
These can be easily used to differentiate between an identical set
of twins.
Identical twins have the same set of DNA, therefore DNA
fingerprinting cannot differentiate them
Two identical twins will not have sameAnonymous voting
- a) Fingerprints
- b) DNA copies
- c) Iris color
- d) Blood group
Answer-D. Saturated salt solution
Toxicological viscera is preserved in a saturated solution of
common salt (sodium chloride).
For toxicological analysis, viscera is never preserved in alcohol,
formalin, or bile salt.
In fact, formalin denatures proteins and chemicai toxins and would
interfere with the detection of poisons during chemical analysis
Viscera in toxicology stored inAnonymous voting
- a) Glycerine
- b) Rectified spirit
- c) Formalism
- d) Saturated salt solution
Answer-C. Carbolic Acid
The only obsolute contraindication is corrosive poisoning i.e
alkalis, mineral acid, vegetable acid and organic acids (except
carbolic acid).
Carbolic acid is the only corrosive in which gastric lavage can be
used.
Gastric lavage must be done (except when contraindicated)
irrespective of whether vomiting has occured or not, to prevent
aspiration of content.
Carbolic acid is the only corrosive in which gastric lavage is not
contraindicated.
Gastric lavage is not contraindicated
after ingestion of which acid.Anonymous voting
- a) HCL
- b) H2SO4
- c) Carbolic acid
- d) Nitric acid
Answer-B. Myocardium
state of the muscles in a dead body when they become stiff or rigid
with some degree of shortening.
All muscles of body are involved i.e. voluntary or involuntary.
However, it does not start in all muscles simultaneously (nysten’s
rule).
Involuntary muscles (heart) are involved first than voluntary
muscles.
Sequence of muscles involvement is as follows: Heart> upper
eyelid> neck > jaw>face > chest > upper limb > abdomen > lower
limb > finger and toes
Answer: D. skin subcutaneous fat
The clinical entity of degloving injury means that the skin has been
lost, but the musculoskeletal unit is intact, and hence, the
movements of the part have been preserved.
Degloving, also called avulsion, is a type of severe injury that
happens when the top layers of your skin and tissue are ripped from
the underlying muscle, connective tissue, or bone. It can affect any
body part, but it’s more common in the legs
Depending on the angle that the tire pullas across the extremity, the
skin and subcutaneous tissue may be pulled or sheared off on
leading edge of extremity.
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