and Answers Verified Solutions| Graded
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Terms in this set (117) EXAM QUIZZES VERIFIED ANSWERS
1. superconducting MRI units have a ______ horizontal
vector
2. in a superconducting MRI unit, the horizontal B0
vector is also considered
3. in a permanent MRI, the vector is in vertical
_____________ direction
4. T or F: True
It is common to refer to the static magnetic
field as B0 because the static magnetic field
produced the directional flux that creates our
B0
5. Hydrogen is an isotope called protium
6. Gyromagnetic ratio the ratio of the magnetic
, moment (field strength)
of a rotating charged
particle, such as an
electron, to its angular
momentum (frequency).
The value of the
gyromagnetic ratio of
hydrogen is 42.57
MHz/Tesla
7. what are the 4 lobes of the human brain frontal, parietal, occipital,
temporal
8. the Sylvia fissure divides ________ & frontal, parietal, temporal
_________ lobes from the __________ lobe
9. The_____________ artery middle cerebral
passes through
the Sylvian
Fissure.
10. When imaging a hemorrhagic infarct in the gradient echo sequence
brain, which pulse sequence would
demonstrate the magnetic susceptibility effects
better?
11. Olfactory (CN I) function: Smell from nasal mucosa
12. Optic (CN II) function: vision from retna
, 13. Oculomotor (CN Motor function to
III) function: superior,
inferior and medial rectus
muscles - eye movement
14. Trochlear (CN IV) function: motor
innervates the superior
oblique muscle - looking
down
15. Trigeminal (CN V) function: Facial sensation
16. Abducens (CN VI) function motor to lateral rectus -
looking side to side
17. Facial (CN VII) function Motor to muscles
controlling facial
expression, stapedius of
middle ear, taste to
anterior tongue
18. Vestibulocochlear Vestibular sensation from
(CN VIII) function semicircular ducts,
hearing from spiral organ
19. Glossopharyngeal Motor -
(CN IX) function speaking/swallowing
20. Vagus (CN X) function Motor - main nerve to
parasympathetic system