week 3 and 4 ante and post mortem Flashcards
manifestations of life are feebly maintained
apparent death
the period immediately before somatic death
agonal period
in the process of dying, a dying condition
moribund
respiratory gurgling or rattling due to mucous buildup in the throat
death rattle
semi convulsive twitches before death
death struggle
prolongation of the last violent contraction of muscle
cadaveric spasm
changes before death
agonal period
changes after death
postmortem
death of the organism as a whole. ; body is no longer able to sustain physiologic and metabolic activity
somatic death
order of death
- clinical death
- brain death
- biological death
- cellular death
no respiration and heartbeat; reversible phase of somatic death process
clinical death
no oxygen due to clinical death, leads to this
brain death
the period where organs and tissues begin to cease; respiration and circulation CANNOT be restored
biological death
individual cells use up their stores of energy and begin to die
cellular death
( this is antemortem) the physiologic, or natural death of cells as they complete their life cycles
necrobiosis
pathological death of tissue as a result of disease processes
necrosis
major agonal changes that happen to body before death (6)
- temperature
- blood circulation
- moisture content
- translocation of microorganisms
- gases in tissues
- therapeutic agents
temperature characteristics for agonal changes before death (2)
- agonal algor
2. agonal fever
decrease in body temp prior to death
agonal algor
spiking of temperature right before death often in persons with infection, toxemia or poisoning also called fastigium
agonal fever
blood circulation characteristics for agonal changes before death (3)
- agonal hypostasis
- agonal coagulation
- agonal capillary expansion
the settling of blood into dependent tissues as a result of gravity taking over the force of circulation
agonal hypostasis
elements of the blood behind to clot and congeal
agonal coagulation
opening of the pores in the walls of the capillaries in an attempt to get oxygen; occurs as an attempt to get the body more oxygen to the tissues and cells
agonal capillary expansion
moisture content characteristics for agonal changes (2)
- agonal edema
2. agonal dehydration
an increase in the amount of moisture in the tissues and body cavities; can result from disease processes or agonal capillary expansion
agonal edema
a decrease in the amount of moisture in the tissues and body cavities; can also result from disease processes or agonal capillary expansion
agonal dehydration
translocation of microorganisms characteristics of agonal changes to the body
movement of microorganisms from one area of the body to another
a distention of the body tissues by the presence of gas or air beneath the skin. Brought about by a surgical procedure, trauma, or puncture or tear in the pleural sac or the lung tissue
antemortem subcutaneous emphysema
ischemic necrosis; a condition that results in a body part that dies dues to poor blood flow; arteries are obstructed veins are not obstructed
dry gangrene
necrotic tissue that is wet; blood and fluids can get to the tissue but are not removed from the tissue
wet gangrene
necrosis in a wound infected by an anaerobic gas-forming bacillus, clostridium perfringens
gas gangrene
therapeutic agents for agonal changes characteristics
- chemotherapeutic agents
- blood thinners
- antibiotics
- vasodilators
an instrument to hear sounds of cardiac activity and respiration
stethoscope
an instrument used to examine the interior of the eye, especially blood flow in the retina
ophthalmoscope
detects brain function
electroencephalogram
detects heart function
electrocardiogram
How long can brain/nervous, muscle, cornea, and blood cells survive after somatic death?
brain/nervous cells; 5 mins
muscle cells; 3 hours
cornea cells; 6 hours
blood cells; 6 hours
order of sequence when brain dies
- cerebral cortex
- midbrain
- brain stem