Principles formative corrections Flashcards

1
Q

mass effect

A

local pressure from a tumour/ bleeding on brain/kidneys

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2
Q

paraneoplastic syndrome

A

group of uncommon disorders in people with cancer

symptoms- difficulty walking, swallowing, decreased muscle tone, slurred speech, vision problems

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3
Q

anterior roots/ rootlets

A

motor fibres (somatic, sympathetic/T1-L2) and parasympathetic (S2,3,4)

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4
Q

posterior roots and rootlets

A

sensory fibres

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5
Q

spinal nerves

A

motor and sensory

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6
Q

spinal cord ends

A

L1/L2
infants and newborns end L3
lumbar punctures at L3/4

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7
Q

can joints move

A

yes but not all are moveable

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8
Q

skelaton has cartilage?

A

yes

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9
Q

mobility at one joint

A

decreases stability

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10
Q

dense regular connective tissue

A

packed extracellular bundles of collagen fibres in random directions

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11
Q

short okazki fragments

templates in DNA rep

A

nucleic acids 5 to 3

both strands

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12
Q

RNA polymerase

A

transcribes mRNA from DNA

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13
Q

transcription factors

enhancers

A

protiens that bind to DNA

DNA sequences that regulate transcription

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14
Q

FiFo ATPase

A

proton pore that transfers energy into high energy phosphate bonds in inner mitochondrial membrane

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15
Q

pyruvate to lactate

A

regenerates NADH by glyceraldehyde 3-phosphate dehydrogenase

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16
Q

phase 1 reactions

agonist

A

can make drug more toxic

drug that has same effect on receptor as endogenous chemical receptor

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17
Q

doubling rate of administration of drug

A

doubles ss plasma con of drug

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18
Q

apparent volume dist for drug is extrapolated volume

A

drug dose/ plasma con

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19
Q

partial agonist

A

drugs bind to and activate receptor but have partial efficacy

20
Q

feed forward

-ve feedback

A

anticipatory response

control of BP and opposes initial change

21
Q

What can cross membrane

pure phospholipid bilayer impermeable to

A

small polar molecules

water

22
Q

test for chromosome imbalances

A

chromosomal microarray first line

23
Q

mRNA formation from DNA

A

transcription

mRNA= transcript

24
Q

what regulate thermostat in fever

A

prostaglandins

25
immunophenotyping
analysis of lymphocytes
26
defensins
anti-microbial protein secreted by epithelial cels and mucosal surfaces
27
Fab
antigen binding site
28
membrane attack complex
lyse pathogens via membrane insertion and osmotic lysis
29
pinocytosis
internilisation of fluids into cells by invagination of cell membrane
30
chemotaxis
mov of cells along increasing/ decreasing con gradient like neutrophils in inflammation
31
CD8 expressed on CD4 function
cytotoxic T cells identifies Helper T cells
32
virus
protien shell/ capsid encloses RNA/DNA genome and sometimes envelope from host cell membrane
33
bacterial endotoxin associated with sepsis
outer membrane and lipopolysaccharide released by gram -ve bacteria
34
lectin pathway cascade activates
complement cascade without antibodies
35
advantages of using DNA technology to identify bacteria
allows identification of microbes that can't be grown normally
36
C difficile
risk of transmission not malaria or e coli
37
haemolotysis
streptococcus!!
38
infiltration
cause of stools through vagina
39
tumour supressor genes
stabalise gennome
40
benign lesion
normal mitosis, diploid DNA, low nuclear to cytoplasmic ratio , no necrosis
41
malignancy
enlarged and pleomorphic nuclei
42
granulation tissue
endothelial cells and myofibroblast
43
granuloma
macrophages / histocytes
44
very brief advice about smoking to a patient who smokes a lot seeing GP
primary preventions
45
hypovolaemic shock
reflex tachycardia