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Summary Topic 8 Brain Scanning

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Uploaded on
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Edexcel Biology Topic 8 Brain Scanning

Institution
OCR
Course
Topic 8








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Written for

Study Level
A/AS Level
Examinator
OCR
Subject
Biology A
Unit
Topic 8
All documents for this subject (7)

Document information

Uploaded on
January 20, 2025
Number of pages
3
Written in
2023/2024
Type
Summary

Subjects

  • topic 8
  • edexcel
  • biology

Content preview

Brain Scanning
Show structures
Not real time and
images - doesn't
-




show brain
functionality
S.I units MRI and CTSccu


Real time >
- shows brain
function
FMRI and PET Scan


PETScan
targets
Radioactive metabolites - that need them
↳ organs
radioactivity can be traced

observe whether he
functioning
>
-
can is
organ
properly
Cyclotron - machine in he hospital that
manufactures radioactive metabolites
-short
half-life means that done in hospital
into patient
injet
>
-




Radioactive cells uptake lots
glucose
- cancer

due to .
malignant growth
Position collides with nearest electron
electron leaves produces radiation
gamma
-



Detected
.
3
by
Dimensional
scanner




Disadvantage
-


cyclotron needed
-


Expose to radioactive ->
cancer ,
damage he DNA
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