Exam 1 Section 1 Flashcards
Ex: light from projector
divergent beam <
Pass directly through patient with to interaction/contact ( good x-ray, creates black image)
Goes into the patient and is completely absorbed, it changes the patient, not necessarily bad
primary radiation
completely absorbed radiation creates:
full white image
completely passes through creates:
full black image
The primary x-ray interacts with the patient and then scatters out any direction
Diminishes image quality
Bad for both tech & pt
scatter radiation
radiation that has gone through the patient
remnant radiation
contains the Latent image
image receptor (IR)
image that requires processing
latent image
the center of the crossing vertical & horizontal lines shown from light or laser for positioning
central ray (CR)
x-ray tube and IR are perfectly aligned with each other
detent
creates heat for the tube so you know where the x-ray is going
collimator light
standing erect, face directed forward, arms at side, palms directed forward
standard anatomic position
vertically through body from front to back, divides body left & right
median or midsagittal plane
divides into left & right, not dead center
parasagittal plane
right angles to median and sagittal, divided anterior and posterior
coronal plane
any plane which passes through body at right angles to the sagittal or coronal plane
transverse/axial, horizontal plane
front of body
anterior (ventral)
back of body
posterior (dorsal)
towards the head
superior or cephalic
towards the feet
inferior or caudal
away from median plane of body, from the middle of a part to right or left
lateral
towards the median plane, or toward middle of a part from left or right
medial
closer to origin of part or closer from midline
proximal
away from origin of a part or further from midline
distal
posterior surface (or sole) of foot
plantar
anterior surface (or top) of foot
dorsum
palm of hand
palmar
the palm of the hand or the sole (plantar surface) of the foot
volar
relates to the same side of the body or part
ipsilateral
relates to the opposite side the body or part
contralateral
towards the skin surface or on the body surface or external
superficial
away from the body surface or internal, further from skin surface
deep
move away from the central axis
abduct
move towards the central axis
adduct
straighten joint
extend
bend joint
flex
turn the foot outward
evert
turn the foot inward
invert
turn palm up
supinate