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L2 , Time of death and early PM changes, Forensic

L2, Time of death and early PM changes, Forensic 


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MCQ

1- Removal of cornea for transplantation should be within…………………

 a- half an hour.
 b- an hour.
 c- two hours. 
d- six hours

2- After death, the human body is felt cold after……………………...hours.

 a- 12.
 b- 18.
 c- 24.
 d- 36.

 3- The temperature of the internal organs of the dead body is the same as that of the environment in…………………………………………...hours.

 a- 6 – 12. 
b- 12 – 18.
 c- 18 – 24.
 d- 12 – 24.
 
4- After death, the clothed body will cool in air at the rate of……………..... 

a- 1.5 degree / hour for the first 6 hours. 
b- 1.5 degree / minute for the first 24 hours.
 c- 2.5 degree / hour for the first 6 hours. 
d- 2.5 degree / hour for the first 12 hours.

 5- There is slight rise in the temperature of the body after death in case of………………………………………………………………………………

 a- drowning. 
b- hemorrhagic shock. 
 c- strangulation. 
d- intracerebral hemorrhage.  

6- The period of initial body temperature plateau that develops after death is……………………………………………………………………………… 

a- one hour. 
b- three hours. 
c- six hours. 
d- twelve hours. 

7- The cause of late body temperature plateau that develops after death is.……………………………………………………………………………...
 a- temperature gradient between core and surface. 
b- rigor mortis. 
c- progressive cooling of the body. 
d- putrefactive changes. 

8- The body cooling after death is accelerated in case of……………….…… 

a- hot climate.
 b- spread-eagled body. 
c- obese body. 
d- corpus with edematous tissue. 

9- The body cooling after death is slow in case of………….………………… 

a- naked body.
 b- infants.
 c- pontine hemorrhage.
 d- shock. 

10- The cause of death that accelerate body cooling is……………………… 

a- pontine hemorrhage. 
b- septicemia.
 c- congestive heart failure.
 d- drowning. 

11- The best site for measuring of body temperature after death is……… 

a- anus.
 b- outer part of rectum.
 c- deep inside of rectum. 
d- axilla. 

12- Postmortem lividity is a result of………………………………………… 

a- settling of blood in capillaries.
 b- leakage of blood into the interstitial tissues.
 c- postmortem blood hemolysis. 
d- stagnation of blood under the skin.
 
13- The site in which hypostasis can’t be seen is…………………………….. 

a- hands.
 b- feet.
 c- face.
 d- contact flattening. 

14- In drowning, the lividity is usually seen over…………………………… 

a- back of the body.
 b- one side of the body.
 c- upper half of the body. 
d- lower half of the body. 

15- When the post mortem lividity appears as 1 to 2 cm patches, the postmortem interval is……………………………………………….hours

a- less than 2.
 b- 2 to 4. 
c- 4 to 6. 
d- 6 to 8. 

16- Hypostasis becomes fixed in position due to…………………………….. 

a- clotting of blood in blood vessels. 
b- rupture of blood vessels.
 c- rigor in blood vessels smooth muscles.
 d- hemolysis staining the tissue. 

17- Hypostasis becomes complete and fixed in position after………..hours.

 a- two.
 b- three. 
c- four.
 d- six. 

18- The normal color of postmortem hypostasis is…………………………..

 a- blue.
 b- red.
 c- purple. 
d- black. 

19- In a case of death due to CO poisoning, the color of hypostasis is…….

 a- bright red.
 b- cherry red.
 c- blue. 
d- blackish. 

20- In a case of death due to cyanide poisoning, the color of hypostasis is……………………………………………………………………………

 a- bright red. 
b- cherry red.
 c- blue.
 d- blackish

 21- In a case of death due to potassium chlorate poisoning, the color of hypostasis is………………………………………………………………..

 a- bright red.
 b- cherry red. 
c- blue.
 d- brown. 

22- When the dead body is found warm, flaccid with small patches of hypostasis in the winter, the postmortem interval is ………………hours.

 a- less than 2.
 b- 2 to 4.
 c- 6.
 d- 12. 

23- When the dead body is found warm, stiff with complete fixed hypostasis in the winter, the postmortem interval may be………...hours. 

a- 6. 
b- 12
c- 18
d- 24.

 24- The color of hypostasis is deep blue in death from………………...……… 

a- cyanide and asphyxia. 
b- aniline and nitrates poisoning.
 c- asphyxia and aniline poisoning. 
d- potassium chlorate and aniline poisoning. 

25- In a case of death due to opiate poisoning , the color of hypostasis is

 a- Red.
 b- Brown. 
c- Blue. 
d- Blackish. 

26- When dead body position changed from lying back to postmortem suspension before half an hour, hypostasis will appear at……………… 

a-back of the body only.
 b-lower half of the body only. 
c-both back of the body and lower half of the body. 
d-other position.

 27- A character that can differentiate hypostasis from bruises is that…….. 

a- hypostasis has ill-defined margins.
 b- cut section of bruises shows blood lying inside capillaries only. 
c- hypostasis shows different colors.
 d- microscopic examination of bruises shows vital reaction. 

28- When dead body position changed from lying back to postmortem suspension after half an hour and within 6 hours, hypostasis will appear at………...…………………………………………………………. 
a- back of the body only. 
b- lower half of the body only.
 c- both back of the body and lower half of the body.
 d- other position. 

29- When dead body position changed from lying back to postmortem suspension after 6 hours, hypostasis will appear at……………………...

 a- back of the body only.
 b- lower half of the body only.
 c- both back of the body and lower half of the body. 
d- other position.

 30- When the postmortem hypostasis is seen in two opposing positions, this indicates that body position may be changed.……………………….

 a- within half an hour.
 b- within 6 hours. 
c- after 12 hours. 
d- after18 hours.

 31- Rigor mortis can be defined as…………………………………………....

 a- momentary muscular stiffening affecting voluntary muscles.

b- progressive muscular stiffening affecting voluntary muscles.

 c- momentary muscular stiffening affecting both voluntary and involuntary muscles.

 d- progressive muscular stiffening affecting both voluntary and involuntary muscles . 

32- Rigor mortis is basically due to…………………………………………...

 a- physical changes.
 b- chemical changes.
 c- biological change.
 d- autolytic change.

 33- The cause of primary muscle flaccidity is………………..……………… 

a- loss of muscle tone. 
b- gradual depletion of ATP.
 c- gradual increase of ATP.
 d- decomposition of muscle proteins. 

34- The cause of rigor mortis is…………………………………………… 

a- increased muscle tone. 
b- gradual depletion of ATP.
 c- gradual increase of ATP. 
d- decomposition of muscle proteins.

 35- Postmortem secondary flaccidity is due to……………………………

 a- loss of muscle tone
 b- separation of actin and myosin.
 c- breakdown of muscle proteins.
 d- failure of ATP synthesis.

 36- The first site where the rigor mortis becomes noticeable is………… 

a- eye lids.
 b- muscles of the face.
 c- jaw and mandible.
 d- upper limbs. 

37- Post mortem goose skin is due to………………………………………. 

a- loss of skin elasticity.
 b- rapid cooling of skin. 
c- rigor mortis of erector pillae muscle. 
d- arborization of skin. 

38- The progression of rigor mortis appearance is……………………….. 

a- lower – upper progression.
 b- side to side progression.
 c- large then small muscles progression. 
d- proximo-distal progression. 

39- In normal conditions, rigor mortis begins to develop within……hour(s) in summer. 

a- 2.
 b- 1.
 c- 4.
 d- 3. 

40- In normal conditions, rigor mortis fully disappears within……..hour(s) in winter. 

a- 24.
 b- 12.
 c- 48. 
d- 72. 

 41- The feature of rigor mortis that can indicate changing in body position after death is………………………………………………………………… 

a- early appearance. 
b- early disappearance.
 c- abnormal march.
 d- asymmetry.

 42- The rigor can’t be developed in case of…………………………………… 

a- robust.
 b- paralyzed limbs
 c- amputated limbs 
d- broken rigor by application of force. 

43- The time when cadaveric spasm appears is………………………………

 a- after primary flaccidity. 
b- after secondary flaccidity. 
c- the moment of death. 
d- with the beginning of rigor mortis. 

44- Cadaveric spasm can help in determination of…………………………...

  a- cause of death.
 b- mechanism of death. 
c- manner of death. 
d- time of death.

Answers:

1.a
2.a
3.c
4.c
5.c
6.b 
7.d
8.b
9.c
10.d
11.c
12.a
13.d
14.c
15.b
16.d
17.d
18.c
19.b

20.a
21.d
22.b
23.a
24.c
25.d
26.b
27.d
28.c
29.a
30.b
31.d
32.b
33.a
34.b


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