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DIAGNOSTIC RADIOGRAPHY NOTES! 1ST 2ND AND 3RD YEAR! £20.59   Add to cart
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Lecture notes

DIAGNOSTIC RADIOGRAPHY NOTES! 1ST 2ND AND 3RD YEAR!
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My documents include Notes on the Head/Skull/Brain Appendicular Skeleton Spine Nervous System Facial Bones Pelvis Chest and Respiratory Can help you pass the course and even achieve the best classification! All colour co-ordinated, diagrams included and easy to read. Can also be used for ...

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  • February 17, 2021
  • 2
  • 2020/2021
  • Lecture notes
  • Simon
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HEAD AND
SKULL:
Cerebral Layer: The outermost layer of the brain
which contains grey matter. This is responsible
for higher order functions such as language and
information processing.


The brain is a key component of the CNS.
It is an organ of soft nervous tissue
within the skull. Its function coordinates
Terminal Bouton are the nerve endings Gyrus: increases surface area of cerebrum and
the centre of sensation and
where nerve impulses occur! allows more neurones to be crammed in.
intellectual/nervous activity.
Functions of a neurone:
1) Receive sensory input – from sensory
receptors in different neurones
2) Interpret signals – signal passes to the
brain as a decision is made Cerebrum:
3) Effect a response – through motor This is the largest part of the brain
neurones. Occupies anterior/middle cranial fossae
Stimulation: Divided by a cerebral fissure called the
Electrical: Motor/Sensory nerve endings initiate corpus collasum.
Nervous Tissue: -
nerve impulses Separates the cerebrum into right and left
2 Types of Cells:
Chemical: Transmission of impulses between one hemispheres; each has a lateral ventricle
1) Specialist Cells (Neurones)
neurone and the next. Hemispheres connected by white matter
2) Nervous Support Cells (Glial)
(Corpus Collasum).
Neurones are responsible for sending
Supportive Cells of the CNS include:
impulses to other parts of the body.
1) Astrocytes
Glial cells support cells and insulate
2) Oligodendrocytes
neurones.
3) Microglia
Neurones makeup nerve tissue and are
4) Ependymal Cells
supported by connective tissue; neuroglia.
Oxygen supply is required, they are unable
to divide and vary in shape and size/

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