Cell death - movement and control WRAP Flashcards
what are the types of cell death?
necrosis
apoptosis
necrosis process
- structure of nucleus changes
- small blebs form
- blebs fuse and become larger - no organelles are located in the blebs
- cell membrane ruptures and cell contents are released
- the organelles are not functional
apoptosis process
- small blebs form
- nucleus begins to break apart
- DNA breaks into small pieces
- organelles are located in the blebs
- cell breaks into several apoptotic bodies
- organelles are still functional
what are blebs?
outward bulging of cell membrane and cytoplasm
treatment for stiff muscles
diclofenac
diazepam
what are the different types of necrosis?
caseous fat fibrinoid gangrene liquefactive
caseous necrosis
tissue maintains cheese-like appearance
occurs in the lungs due to TB commonly
fat necrosis
characterised by digestive enzymes action on fat
associated with trauma
common in breasts
fibrinoid necrosis
pattern of irreversible and uncontrolled cell death
occurs when antigen-antibody complexes are deposited in the walls of blood vessels along with fibrin
tougher and more fibrous
gangrene
death of body tissue due to lack of blood flow or serious bacterial infection
commonly affects extremities
liquefactive necrosis
results in a transformation of body tissue into liquid viscous mass
common in the brain
what is necrosis?
unprogrammed cell death
due to injury, radiation, disease or chemicals
irreversible
what is apoptosis?
programmed cell death
what part of the skull when fractured commonly causes CSF leakage from the ear?
middle cranial fossa
where can the great saphenous vein be accessed?
anterior to medial malleolus of ankle
