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Death - The process of dying |  | Death - The process of dying: Encyclopedia II - Death - The process of dying |  |
Death - Cell death.
A. Normal cellular function
1. Production of free energy required for vital cellular metabolism
2. Production of enzymatic and structural protein
3. Maintenance of chemical and osmotic homeostasis of cell
4. Cell reproduction
B. Needs of cell
1. Oxygen, phosphate, calcium… (C, H, N, O, P, S; pronounced "schnapps")
2. Nutritional substrates
3. ATP – required as a source of free energy
4. Intact cell membranes
5. Steady-state acti ...
See also:Death, Death - Interpretations of death, Death - Criteria of human death: medical religious and legal, Death - When is a person dead?, Death - The process of dying, Death - Cell death, Death - Physiological changes during the process of dying, Death - Signs of approaching death, Death - When death is imminent, Death - When death occurs, Death - Most causal causes of death, Death - Other notable causes of death in the United States 2002, Death - What happens to humans after death?, Death - Physiological consequences of human death, Death - Settlement of dead human bodies, Death - Personification of death, Death - Unwritten customs and superstitions |  | | Death, Death - Cell death, Death - Criteria of human death: medical religious and legal, Death - Interpretations of death, Death - Most causal causes of death, Death - Other notable causes of death in the United States 2002, Death - Personification of death, Death - Physiological changes during the process of dying, Death - Physiological consequences of human death, Death - Settlement of dead human bodies, Death - Signs of approaching death, Death - The process of dying, Death - Unwritten customs and superstitions, Death - What happens to humans after death?, Death - When death is imminent, Death - When death occurs, Death - When is a person dead?, -cide, Afterlife, Agent Smith Moment, Apoptosis, Ars moriendi ("The Art of Dying"), Autopsy, Bible and reincarnation, Brain death, Burial, Cemetery, Clinical death, Coffin, Coma, Cremation, Death (band), Death, Desire and Loss in Western Culture by Jonathan Dollimore, Death rattle, Embalming, Euthanasia, Fascination with Death (The fascination with death and the culture surrounding it), Famous last words |  | |
|  |  | Death: Encyclopedia II - Death - The process of dying
Death - The process of dying
Death - Cell death
A. Normal cellular function
1. Production of free energy required for vital cellular metabolism
2. Production of enzymatic and structural protein
3. Maintenance of chemical and osmotic homeostasis of cell
4. Cell reproduction
B. Needs of cell
1. Oxygen, phosphate, calcium… (C, H, N, O, P, S; pronounced "schnapps")
2. Nutritional substrates
3. ATP – required as a source of free energy
4. Intact cell membranes
5. Steady-state activity requires O2 consumption
Death - Physiological changes during the process of dying
A. Events leading to death:
1. Brain ceases to supply information vital for controlling ventilation, heart rhythm, and/or vasodilation
2. Lungs unable to supply O2 exchange with blood stream
3. Heart and blood vessels unable to maintain adequate circulation of blood to vital tissues
B. Cerebrovascular system:
1. Hemorrhage
2. Pump failure
3. Decreased CO2 leads to decreased PCO2 leads to Cheyne-Stokes respiration
C. CNS problems:
1. Infection
2. Blood vessel disruption
3. Malignant tumors
4. Metabolic changes
a. Renal failure
b. Hepatic failure
c. Pancreatic failure
D. CNS decompensation:
1. Early signs:
a. Sluggish pupils
(1) Non reactive
(2) Dilated and fixed - drugs also affect this
b. Confusion
c. Inability to orient
2. Later signs:
a. Lethargy
b. Decreased ability to perform simple cognitive functions
c. Attention only by tactile, auditory or visual stimuli
3. Late signs:
a. Stupor, sleep
b. Withdrawal of purposeless involvement to stimuli without wakefulness or arousal
c. Loss of bowel control
4. Semicomatose - movement only with pain
5. Deep coma - no response
E. Respiratory system:
1. CBF
2. COPD
3. Infections
4. Cancer metastasis
Changes after death:
A. Body cools 1.5°F/hr
B. Rigor mortis begins prior to decomposition and livor mortis begins with death
C. Rigor mortis:
1. Muscles gradually become hard due to decreased ATP and lactic acidosis within muscle fibrils
2. Begins 2-4 hours after death but may be sooner
3. May disappear after 9-12 hours in hot climate
D. Livor mortis:
1. Body becomes distended
2. Skin color changes from green to purple to black
3. Dependent areas first due to pooling of blood
4. Seen within 2 hours of death, maximum at 8-12 hours
Other related archives-cide, 19th century, 20th century, ATP, Accidents, Afterlife, Agent Smith Moment, Alzheimer's disease, Angel of Death, Apoptosis, Ars moriendi, Autopsy, Bible and reincarnation, Bill & Ted's Bogus Journey, Biochemically, Biologically, Blood vessel, Brain death, Buddhism, Burial, CBF, CNS, CO2, COPD, CPR, Cancer, Castlevania, Cell reproduction, Cemetery, Charmed, Cheyne-Stokes respiration, Children of Bodom, China, Clinical death, Coffin, Coma, Cremation, Dead Like Me, Death, Death (band), Death (personification), Death Takes a Holiday, Death rattle, Death, Desire and Loss in Western Culture, Diabetes, Discworld, Día de los Muertos, Embalming, Euthanasia, Execution, Family Guy, Famous last words, Fascination with Death, Final Destination, Fingernails, Funeral, Futurama, Grim Reaper, HeLa cell, Hearse, Heart disease, Hemorrhage, Henrietta Lacks', Hepatic failure, Homo neanderthalensis, Human body disposal, ISO 3166-2 codes for Japan, Immortality, Infection, Influenza, Ingmar Bergman, Intentional abortion, Japan, Jews, Jonathan Dollimore, Karoshi, Korea, Life extension, List of faux pas, Lists of people by cause of death, Livor mortis, Louis Pasteur, Malignant, Maternal death, Meet Joe Black, Metabolic, Miyagi Prefecture, Monty Python, Mortician, Mot, Murder, Near-death experience, Neil Gaiman, Nephritis, On a Pale Horse, Oxygen, Pancreatic, Persistent vegetative state, Post Mortem Interval, Quantum immortality, Reincarnation, Renal failure, Rigor mortis, Sandman, Second Law of Thermodynamics, Septicemia, Space burial, Stroke, Suicide, Taiwan, Taj Mahal, Terminal illness, Terri Schiavo, Terry Pratchett, Thanatology, The Grim Adventures of Billy and Mandy, The Meaning of Life, The Seventh Seal, Tibet, Touched by an Angel, Uniform Determination Of Death Act, United States, Western culture, Yama, afterlife, age of 160, agnosticism, algor mortis, anoxia, archaeologists, atheism, autolysis, autolytic, autonomic, bacteria, birds, birds of prey, bloating, brain, brain death, brain stem, breathing, burial at sea, calcium, cardiac arrest, cardiac pacemakers, cell membranes, cells, cemetery, cetaceans, chess, church, clinical death, cloning, closed systems, coagulate, cognitive, coma, consciousness, coroner, cremation, cryonics, crypt, dead on arrival, debate, decapitation, decay, decomposition, defibrillation, dehydration, do not resuscitate, ecological burial, electroencephalograph, embalming, enzymes, evolution, faces, faux pas, feces, fetus, films, first responder, forensics, free energy, freeze-drying, funeral, funeral customs, funeral home, fungi, gases, germ cells, grave, graves, grim reaper, hair, heart, heartbeat, hell, homeostasis, immortal, incontinence, insects, knight, lactic acidosis, legal, legal Will, life, life-support, livor mortis, longevity, lungs, mammalian, mausoleum, medical, medical examiner, metabolic activity, metabolism, metals, metastasis, metonym, mortuary, mountain, mummification, mythological, neo-cortex, nephrosis, nephrotic syndrome, nerves, ochre, organism, organs, osmotic, ossuary, overlapping, pallor mortis, persistent vegetative state, person's, personality, phosphate, pneumonia, reincarnation, religion, religious, respiratory diseases, resurrection, rigor mortis, ritualised, robots, sarcophagus, scythe, sepulchre, skeletal, skin, sky burial, sleep, soul, spontaneous generation, stomach, tarot, television, telomerases, telomeres, tissue culture, tissues, tomb, transplantation, tumors, undertaker, underworld, unusual personification, urine, vampires, vasodilation, zygote, °F
 Adapted from the Wikipedia article "The process of dying", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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