FINAL - HINTS Flashcards
referred pain
source derived from same embryonic segment as site of pain, we call segments DERMATOMES
stress - cortisol
substance P = enhances pain
massage reduces levels of cortisol & substance P
5 cardinal signs of inflammation (PRISH)
heat
redness
swelling
pain
loss of use/ dysfunction
histamine
-released from platelets & mast cells
-occurs quickly, lasts less than 30min
-makes gaps in endothelial lining
=leakier
bradykinin
-released from plasma
-slower reaction than histamine
-accounts for pain felt in inflammation
compliment system - activated in cascade: 3 ways
- classical pathway
- alternative pathway
- lectin pathway
lead to membrane attack complex (MAC)
arachidonic acid dervatives
-lipoxygenases: leukotrienes
-cyclooxygenases: prostaglandins
wound healing
-events that occur after skin injury
-CT cells: produce scar tissue (myofibroblasts, angioblasts, fibroblasts)
infectious diseases caused by…
microorganisms invading the body
1st, 2nd, 3rd line of defence
1st: mechanical barriers- integrity of epithelial surfaces
2nd: inflammation
3rd: acquired immune response (adaptive)
ENDOGENOUS (sources of infection)
from source WITHIN body
(normally existing yeast/ fungus/ bacteria)
EXOGENOUS (sources of infection)
from source OUTSIDE of body
(influenza virus/ smoke/ asbestos)
opportunistic infection
results from an impaired immune system
(AIDS/ HIV patients)
neoplasia
“new growth”
-malignant or benign
study of malignant cancer
oncology
6 unique characteristics of cancer
- anaplasia
- anchorage independent
- lack of contact inhibition
- immortality
- angiogenesis
- genetic instability
anaplasia
cells become undifferentiated
anchorage independent
cells detach from bottom of culture flask
lack of contact inhibition
continue to grow & pile up on each other
immortality
reverse shortening of telomeres
angiogenesis
develop vascular network to bring O2 & nutrients for growth
genetic instability
cells divide continuously, cause genetic damage
benign
-limited growth
-good prognosis
-curable
-encapsulated
malignant
-uncontrollable growth
-will eventually kill host
-less O2 needed
malignant tumor
-cancerous
-no function other than to reproduce
-lack a capsule
-different than original cell
depression
-morbid sadness
-different from grief
bipolar disorder
-cyclical mood swings
-Tx: lithium
seasonal affective disorder
“winter depression”
-related to less sunlight
-Tx: light therapy
obsessive compulsive disorder (OCD)
-emotional state of fear & apprehension
-recurring thoughts & compulsion
panic disorder
emotional state of fear & apprehension
PTSD
-anxiety disorder
-develops after extremely traumatic event
anorexia
-abnormally low weight
-intense fear of gaining weight
-distorted perception of own body
schizophrenia
-interpret reality differently
-hallucinations
-hearing voices
-delusion
anemias
reduction in quantity & quality of RBCs
-iron deficient = most common
-hemolytic anemia
hemophilia
-genetic disorder that impairs clotting
-mutation in gene
leukemia
-cancer
-dysfunctional WBCs
-spread via lymph nodes & bloodstream
lyme disease
-bulls eye rash
-tick bite
-neurological/ arthritic symptoms, mm weakness, paralysis
-Tx: antibiotics
bacterial syphilis
-sexually transmitted through infected fluids, open wounds, trans placental
-primary, secondary, latent, tertiary
-tertiary = most severe stage
-Tx: antibiotics
herpes virus
hides in dosal root ganglia
-lifetime
herpes simplex 1
“cold sores” / oral lesions
herpes simplex 2
-genital lesions
-sexually transmitted
-no cure
varicella zoster/ shingles
-after chicken pox, virus lays dormant in peripheral nervous system in dorsal root ganglia of spine
-torso, along sensory nerve dermatome
HPV - genital warts
-over 40 types
-sexually transmitted
-skin lesions
-leads to cervical cancer
-no cure
entervirus
-affects GI
-may affect respiratory & nervous system
poliomyelitis (polio)
once ingested travels to anterior horn of spinal cord
influenza virus
“flu”
-infection of upper respiratory tract, can extend into lower
rhinovirus
“common cold”
-upper respiratory tract infection
-mucosa of nose & throat
-highly contagious
-ear, sinus, lung infection
fungal pneumonia (pneumyocystic carinii)
-occurs in immunocompromised
-OPPORTUNISTIC infection
-found in lungs of healthy people with no symptoms
yeast infection (candidiasis)
-normal in GI tract, mouth, genital areas & skin
-overgrowth of candida
streptococcus
-bacterial infection
-group A & B
-group A = most common
pharyngitis - strep throat
-caused by group A strep
-sore through in children & teens
-if untreated = glomerulonephritis, kidney inflammation, rheumatic fever
rheumatic fever
-untreated infection of group A streptococcal
-affects children between 5-15 yrs
-affects heart & valves, vegetations form on valves
necrotizing fasciitis
-caused by group A strep
-flesh eating disease
streptococcus pneumoniae
-occurs in upper respiratory tract flora
-in susceptible people may cause pneumonia
-spreads by direct person to person contact, droplets
gonococcus (gonorrhea)
“the clap”
-sexually transmitted infection of urogenital tract
bacterial meningococcal infections
inflammation of fluid & membranes of meninges
cornyebacterium diptheria
-affects mucous membranes, respiratory tract, ears, eyes, genital areas, skin
-grey, thick pseudomembranes forms over throat & tonsils
yersinia pestis
“the plague”
-transmitted by fleas on rats
-50% mortality rate
clostridium botulinum
-bacteria found to cause severe food poisoning with paralyzing effects
-caused by home canned foods low in acid
coliforms
-found in water, soil, vegetation, feces
-E-coli = virulent strain, causes gastroenteritis & urinary tract infections
coliforms - cholera
-causes watery diarrhea leading to severe dehydration
-rare in north america
tuberculosis
-contagious bacterial lung infection
-affects lungs, lymph nodes, other organs
-latent (inactive), active (contagious & symptomatic)
-causes necrosis
-“cheese-like”
leprosy
-more common in children & mostly in africa/ asia
-takes 3-5 years for symptoms to show
chlamydia
-most common sexually transmitted bacterial infection (last decade increased 143% in canada)
-“silent STD”
trichomoniasis
-sexually transmitted protozoal (parasite)
-co infected with gonorrhea
TYPE I (hypersensitivity reaction)
-immediate release of histamine
-anaphylaxis
-anaphylactic or atopic reactions
EX: hay fever, allergic rhinitis, atopic dermatitis, bronchial asthma
TYPE II (hypersensitivity reaction)
-cytotoxic antibody mediated reaction
EX: hemolytic anemia, goodpasture’s syndrome, graves disease, myasthenia gravis
TYPE III (hypersensitivity reaction)
-immune complex mediated reaction
EX: lupus, poststreptococcal glomerulonephritis, polyarteritis nodosa
TYPE IV (hypersensitivity reaction)
cell mediated or delayed type reaction
EX: contact dermatitis, transplant rejection, TB, fungi, syphilis, Crohn’s sarcoidosis, leprosy
hay fever - TYPE I
-allergic rhinitis
-seasonal allergy, not normally pathological
-inhaled pollens trigger release of histamine
anaphylactic shock - TYPE I
massive release of histamine
goodpasture’s syndrome - TYPE II
-autoimmune disease affecting kidneys & lungs
-antibodies produced attack component of collagen
-affects alveoli of lungs & glomerulus of kidneys
hyperthyroidism - graves (TYPE II)
-autoimmune disease
-thyroid gland
-resultant goiter
-weight loss, fatigue, tachycardia, hair loss, protrusion of eyeballs (exophthalmos)
myasthenia gravis
impaired impulse transmission of motor neurons caused by antibodies that attack & destroy acetylcholine receptors at NMJ
systemic lupus erythematosus (SLE) - TYPE III
malfunctioning T cells activate B cells that secrete antibodies