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Forensics Final MCQs 2- 5th Year PMU

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Forensics Final MCQs 2- 5th Year PMU
Med Student
Quiz by Med Student , updated more than 1 year ago
Med Student
Created by Med Student over 4 years ago
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Resource summary

Question 1

Question
Which one of these are correct?
Answer
  • The presence of petechial haemorrhages does not automatically point to asphyxia as a cause of death
  • The presence of petechial haemorrhages automatically points to asphyxia as a cause of death

Question 2

Question
Which one of these are correct?
Answer
  • More recently still the arm lock has been used as means of restraint by law enforcement officers, sometimes with fatal results
  • More recently still the arm lock has been used as means of restraint by law enforcement officers, not causing death due to asphyxia

Question 3

Question
Which one of these are correct?
Answer
  • Airway obstruction is a contributory factor in some hangings where the hyoid bone and tongue are pushed upwards and backwards against the laryngo-pharynx. This type of obstruction produces “air hunger” which is a frightening sensation and a feature of vascular compression in the neck
  • Airway obstruction is a contributory factor in some hangings where the hyoid bone and tongue are pushed upwards and backwards against the laryngo-pharynx. This type of obstruction produces “air hunger” which is a frightening sensation and is not a feature of vascular compression in the neck

Question 4

Question
Which one of these are correct?
Answer
  • Ligature strangulation can be defined as a circumferential squeezing of the neck which is dependent of the gravitational weight or suspension of the head
  • Ligature strangulation can be defined as a circumferential squeezing of the neck which is independent of the gravitational weight or suspension of the head

Question 5

Question
Which one of these are correct?
Answer
  • The ligature mark is a vital part of the evidence as it often reproduces the pattern and dimensions of the ligature itself
  • The ligature mark is a vital part of the evidence as it often reproduces the colour and material of the ligature itself

Question 6

Question
Which one of these are correct?
Answer
  • Hanging is usually suicidal, in some cases it may be accidental, particularly those related to autoerotic asphyxiation
  • Hanging is always suicidal

Question 7

Question
Which one of these are correct?
Answer
  • External appearances of strangulation are injuries to the larynx; laryngeal bleeding; intramuscular bleeding; intimal carotid artery laceration — Amussat's sign; Simons's bleeding; Hangman’s fracture
  • Internal appearances of strangulation are injuries to the larynx; laryngeal bleeding; intramuscular bleeding; intimal carotid artery laceration — Amussat's sign; Simons's bleeding; Hangman’s fracture

Question 8

Question
Which one of these is correct?
Answer
  • Hangings that involve free swinging result in an almost instantaneous death due to sudden pressure on the neck arteries. If a long drop is involved the cervical spine may be broken
  • Hangings that involve free swinging result in an almost instantaneous death due to sudden pressure on the neck arteries. If a long drop is involved, the cervical spine is always broken

Question 9

Question
Which one of these is correct?
Answer
  • When oxygen is not able to reach the lungs because of occlusion of the mouth and / or nose, or the airway at the level of the larynx is obstructed (eg by a bolus of food), the cause of the asphyxial death is 'obstruction of the airways’
  • When oxygen is not able to reach the lungs because of occlusion of the mouth and/ or nose, or the airway at the level of the larynx is obstructed (eg by a bolus of food), the cause of the asphyxial death is strangulation

Question 10

Question
Which one of these is correct?
Answer
  • Restraint asphyxia is a variant in which chest, diaphragm and accessory muscles are impaired by the act of physical restraint
  • Restraint asphyxia is a variant in which chest, diaphragm and strap muscles are impaired by the act of physical restraint

Question 11

Question
Which one of these is correct?
Answer
  • Manual strangulation can be both homicidal and suicidal
  • Manual strangulation is always homicidal

Question 12

Question
Which one of these is correct?
Answer
  • The location of the hanging mark is situated higher on the neck, usually being directly under the chin anteriorly, passing round beneath the jaw-bones and rising up at the sides or back of the neck to the usual gap under the knot
  • The location of the ligature mark is situated higher on the neck, usually being directly under the chin anteriorly, passing round beneath the jaw-bones and rising up at the sides or back of the neck to the usual gap under the knot

Question 13

Question
Which one of these is correct?
Answer
  • Amussat’s sign is a laceration of the intimal carotid artery
  • Amussat’s sign is a laryngeal bleeding

Question 14

Question
Which of these is correct?
Answer
  • Hangman’s fracture is an internal appearance in strangulation
  • Hangman s fracture is an external appearance in strangulation

Question 15

Question
Which of these is correct?
Answer
  • The appearance of finger indentations around the neck area indicates manual strangulation
  • The appearance of finger indentations around the neck area indicates chest compression

Question 16

Question
Which of these is correct?
Answer
  • Mechanism of death is a physical abnormality produced by cause of death that is incompatible with life
  • The cause of death is a physical abnormality produced by the mechanism of death

Question 17

Question
Which of these is correct?
Answer
  • Cause of death is a disease or an injury that initiates the events that led to death
  • Mechanism of death is a disease or an injury that initiates the events that led to death

Question 18

Question
Which of these is correct?
Answer
  • The external examination at autopsy includes examination of each organ in the body cavities
  • The external examination at autopsy includes the age, sex, race, physique, height, weight and nourishment of the deceased

Question 19

Question
Which of these is correct?
Answer
  • The internal examination at autopsy includes examination of each organ in the body cavities
  • The internal examination at autopsy includes the age, sex, race, physique, height, weight and nourishment of the deceased

Question 20

Question
Which one of these is correct?
Answer
  • The bruise is a leakage of blood from ruptured small vessels (veins or arterioles) into the surrounding tissues
  • The bruise is a settling of blood into the lowermost blood vessels under gravity after the circulation ceases

Question 21

Question
Which one of these is correct?
Answer
  • Abrasions are injuries involving superficial layers of the skin - the epidermis or mucus membrane due to impact against some hard, blunt, and rough object
  • Abrasions are injuries involving the full thickness of the skin - epidermis or mucus membrane due to impact against some hard, blunt, and rough object

Question 22

Question
Which one of these is correct?
Answer
  • After 7-10 days the colour of the scab of an abrasion is reddish — brown
  • After 2-3 days the colour of the scab of an abrasion is reddish — brown

Question 23

Question
Which one of these is correct?
Answer
  • Laceration is a leakage of blood from ruptured small vessels into the surrounding tissues
  • Laceration is a full thickness tearing of the skin (or other tissue) due to stretching, pinning and crushing of tissues by blunt force trauma

Question 24

Question
Which one of these is correct?
Answer
  • Lacerated wounds are characterised by ragged edges, bruising of skin and tissue bridges
  • Abrasions are characterised by ragged edges, bruising of skin and tissue bridges

Question 25

Question
Which one of these is correct?
Answer
  • Lacerated wounds heal by scarring
  • Lacerated wounds heal by scabbing

Question 26

Question
Which one of these is correct
Answer
  • The lacerated wound is due to blunt force
  • The lacerated wound is due to sharp force

Question 27

Question
Which one of these is correct?
Answer
  • Tissue bridges in depth of lacerated wound are intact nerves, vessels and tendons
  • Tissue bridges in depth of cut wound are intact nerves, vessels and tendons

Question 28

Question
Which one of these is correct?
Answer
  • Healing of wound is through three phases - phase of inflammation, phase of proliferation and phase of scar formation and remodeling
  • Healing of wound is through three phases - phase of inflammation, phase of proliferation and phase of scab formation and remodeling

Question 29

Question
Which of these is correct?
Answer
  • Abrasions are injuries involving superficial layers of the skin - epidermis or mucus membrane, due to impact against some hard, blunt and rough object / weapon
  • Lacerations are injuries involving superficial layers of the skin - epidermis or mucus membrane, due to impact against some hard, blunt and rough object / weapon

Question 30

Question
Which one of these is correct?
Answer
  • Tissue bridges are intact edges
  • Tissue bridges are intact nerves, vessels and tendons

Question 31

Question
Which one of these is correct?
Answer
  • Laceration is not a full thickness tearing of the skin (or other tissue) due to stretching, pinning and crushing of tissues by blunt force trauma
  • Laceration is a full thickness tearing of the skin (or other tissue) due to stretching, pinning and crushing of tissues by blunt force trauma

Question 32

Question
Which one of these is correct?
Answer
  • Early changes take place between the first 12 to 24 hours
  • Early changes take place between the first 24 to 48 hours

Question 33

Question
Which one of these is correct?
Answer
  • Early changes are changes of the skin and mucous membranes, body cooling, rigor mortis and Llivor mortis
  • Early changes are changes of the skin and mucous membranes, body cooling, rigor mortis and adipocere

Question 34

Question
Which one of these is correct?
Answer
  • Late changes take place after 24 hours
  • Late changes take place between the first 24 to 48 hours

Question 35

Question
Which one of these is correct?
Answer
  • Late changes are putrefaction, mummification and adipocere
  • Late changes are putrefaction, mummification and livor mortis

Question 36

Question
Which one of these is correct?
Answer
  • The "Spot of the Larche” is a dark discoloration of a portion of sclera exposed to air
  • The ,"Spot of the Larche” is a hemorrhage associated with strangulation

Question 37

Question
Which one of these is correct?
Answer
  • The "Spot of the Larche” is an early post-mortem change
  • The "Spot of the Larche” is a hemorrhage associated with strangulation

Question 38

Question
Which one of these is correct?
Answer
  • The "Spot of the Larche” is a dark discoloration of a portion of sclera exposed to air
  • The "Spot of the Larche” is a late post-mortem change

Question 39

Question
Which one of these is correct?
Answer
  • The incised wound is a clean division of the full thickness of skin (or other tissue) under the pressure of a sharp-edged weapon
  • The incised wound results from hacking or chopping motion made with a fairly sharp and relatively heavy weapon

Question 40

Question
Which one of these is correct?
Answer
  • The incised wound is deeper than it is long due to a Swipe action
  • The incised wound is longer than it is deep due to a Swipe action

Question 41

Question
Which one of these is correct?
Answer
  • The incised wound reflects weapon type, not sharp edge
  • The incised wound reflects sharp edge, not weapon type

Question 42

Question
Which one of these is correct?
Answer
  • Defence wounds are due to the immediate & instinctive reaction of the Victim to save himself/ herself, either by raising the arm to prevent the attack, or by grasping the weapon
  • Hesitation wounds are due to the immediate & instinctive reaction of the victim to save himself, either by raising the arm to prevent the attack, or by grasping the weapon

Question 43

Question
Which one of these is correct?
Answer
  • Hesitation wounds are signs of a homicide
  • Hesitation wounds are signs of a suicide

Question 44

Question
Which one of these is correct?
Answer
  • Penetrating wounds are caused by separation of the skin and soft tissues under the pressure of a sharp or blunt pointed instrument
  • Incised wounds are caused by separation of the skin and soft tissues under pressure of a sharp or blunt pointed instrument

Question 45

Question
Which one of these is correct?
Answer
  • A straight in and out stab wound is slightly shorter than the width of the blade due to stretching of the skin over the point of the knife on insertion and elastic recoil withdrawal
  • A straight in and out stab wound is slightly longer than the width of the pace due to stretching of the skin over the point of the knife on insertion and elastic recoil withdrawal

Question 46

Question
Which one of these is correct?
Answer
  • Stab wound width must be assessed with the edges taped together because the wound is often shortened and widened into an ellipse by skin elasticity and underlying muscle tone
  • Stab wound width must be assessed with the edges not taped together because the wound is often shortened and widened into an ellipse by skin elasticity and underlying muscle tone

Question 47

Question
Which one of these is correct?
Answer
  • The best indicator of blade width is the shortest (least rocking), deepest wound (weapon fully inserted)
  • The best indicator of blade width is the longest (most rocking), deepest wound (weapon fully inserted)

Question 48

Question
Which one of these is correct?
Answer
  • Firearm injuries occur when someone is shot by a bullet or other sort of projectile from a firearm
  • Firearm injuries occur when someone is hit with the handle of a pistol

Question 49

Question
Which one of these is correct?
Answer
  • The kinetic energy of a bullet is proportional to mass and velocity
  • The kinetic energy of a bullet is proportional to deformation and fragmentation

Question 50

Question
Which one of these is correct?
Answer
  • Skin defect is due to passing of the projectile through the skin
  • Skin defect is due to deposition of soot from partially burnt gases

Question 51

Question
Which one of these is correct?
Answer
  • Forward motion of bullet indents the skin and abrades the margin of exit wound
  • Forward motion of bullet indents the skin and abrades the margin of entry wound

Question 52

Question
Which one of these is correct?
Answer
  • Tattooing is a deposition of soot from partially burnt gases
  • Smudging is a deposition of soot from partially but gases

Question 53

Question
Which one of these is correct?
Answer
  • An entry wound is typically larger and more irregular than an exit one due to bullet tumbling and deformation
  • An exit wound is typically larger and more irregular than an entry one due to bullet tumbling and deformation

Question 54

Question
Which one of these is correct?
Answer
  • Muzzle impression is due to the skin impact against muzzle produced by discharge gases in distant wound
  • Muzzle impression is due to the skin impact against muzzle produced by discharge gases in contact and near contact wounds

Question 55

Question
Which one of these is correct?
Answer
  • Lubricant and debris on bullet surface wipe off onto the wound edge and produce abrasion ring
  • Lubricant and debris on bullet surface wipe off onto the wound edge and produce grey ring

Question 56

Question
Which one of these is correct?
Answer
  • A contact entry wound is generally large and cruciate ( stellate, or star shaped), due to explosive effects of the gases liberated
  • A contact entry wound is generally small and cruciate ( stellate, or star shaped), due to explosive effects of the gases liberated

Question 57

Question
Which one of these is correct?
Answer
  • A distant entry wound is produced by mechanical action of bullet penetration of skin only
  • A near entry wound is produced by mechanical action of bullet penetration of skin only

Question 58

Question
Which one of these is correct?
Answer
  • The entry wound shows a punched clean hole in the outer table of the skull
  • The exit wound shows a punched clean hole in the outer table of the skull

Question 59

Question
Which one of these is correct?
Image:
Qs+189 (binary/octet-stream)
Answer
  • This scheme shows contact range of fire
  • This scheme shows distant range of fire

Question 60

Question
Which one of these is correct?
Image:
Qs+190 (binary/octet-stream)
Answer
  • This scheme shows near range of fire
  • This scheme shows distant range of fire

Question 61

Question
Medicolegal case. After familiarizing yourself with the autopsy - external and internal examination, answer the following questions: In external exam of the cadaver of a young girl the following signs are found- petechial haemorrhages of the skin, eyelids, conjunctiva and sclera and finger-nail scratches on the neck. In internal exam of the cadaver the following signs are found - petechial haemorrhages of the heart with subepicardial localization and of the lungs with subpleural localization intramuscular bleeding in the neck and fractures of hyoid bone and larynx. 1. What is the mechanism of death?- [blank_start]Asphyxia[blank_end] 2. What is the cause of death?- [blank_start]Contriction of the soft tissues[blank_end] of the neck by [blank_start]manual strangulation[blank_end] 3. Determine the manner of death - homicidal, suicidal or accidental?- [blank_start]Homicidal[blank_end]
Answer
  • Asphyxia
  • Contriction of the soft tissues
  • manual strangulation
  • Homicidal

Question 62

Question
Medicolegal cause. After familiarizing yourself with the crime scene circumstances and the autopsy - internal andexternal examination, answer the following questions: A deceased naked young girl with visible bruises on the breast, thighs and neck with the following characteristics — oval form and red colour. There are finger scratches on the neck, covered by a reddish scab. On the back of the dead body tramline bruises with yellowish colour are found. 1, What is the most probable mechanism of death?- [blank_start]Asphyxia[blank_end] 2. What is the most probable cause of death?- [blank_start]Manual Strangulation[blank_end] 3. What is the most probable manner of crime?- [blank_start]Rape[blank_end] 4. Distinguish the dating of the damages.
Answer
  • Asphyxia
  • Manual Strangulation
  • Rape

Question 63

Question
Medicolegal cause. After familiarizing yourself with the crime scene circumstances and the autopsy - internal andexternal examination, answer the following questions: A dead body with a wound on the neck is found. The margins of the wound are clean-cut well defined, the large blood vessels are severed, there are multiple shallow incised wounds on the left wrist, blood soaked clothes, blood staining and spattering of surroundings, blood staining of the knife. 1. What is the mechanism of death?- [blank_start]Loss of Blood[blank_end] 2. What is the cause of death?- [blank_start]Severance[blank_end] of neck [blank_start]vessels[blank_end] 3. What is the most probable manner of death - homicidal, suicidal or accidental?- [blank_start]Suicidal[blank_end]
Answer
  • Loss of Blood
  • Severance
  • vessels
  • Suicidal

Question 64

Question
Medicolegal case. After familiarizing yourself with the autopsy - internal and external examination, answer the following questions: There is a star-shaped skin defect on the right temple and an abraded ring. The edges of the skin defect are inverted. The adjacent tissues are cherry- red in colour. Around the skin defect there is a muzzle impression. The nght hand and the face are blood stained. There is a wound on the left temple which ts smaller in size than the skin defect. The edges of this wound are everted. The colour of the surrounding tissues is dark red. During the crime scene investigation a pistol and a letter from the deathbed are found. Internal examination: During the check of the skull two defects are found- the first one of them is on the right temple area and shows a punched clean hole in the outer table. The inner table has a cone-shaped piece of bone. It is detached forming a crater that is larger than the hole on the outer table. The defect on the left temple area shows a contrary feature. There is severe cerebral damage. What is the cause of death?- [blank_start]firearm injury[blank_end] What is the mechanism of death?- severe [blank_start]cerebral damage[blank_end] What is the most probable manner of death?- [blank_start]suicidal[blank_end] What is the range of fire?- [blank_start]contact range[blank_end] What is the direction of the fire?- from the [blank_start]right[blank_end] temple to the [blank_start]left[blank_end] temple
Answer
  • firearm injury
  • cerebral damage
  • suicidal
  • contact range
  • right
  • left

Question 65

Question
Case: A dead body with a wound on the neck is found. The margins of the wound are clean-cut, well defined, the large blood vessels in the area of the wound are severed, there are multiple shallow incised wounds only on the left wrist, blood soaked clothes, blood staining. and spattering of surroundings, blood staining of the knife, found near the corpse. Questions: What is the most probable cause of death?- [blank_start]Incision[blank_end] What is the mechanism of death?- [blank_start]Loss of blood[blank_end] What is the manner of death?- [blank_start]Suicide[blank_end]
Answer
  • Incision
  • Loss of blood
  • Suicide
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