Terminology/Landmarks/Preliminary Steps/Positioning Flashcards
AP
Anteroposterior
ASIS
Anterior superior iliac spine
CR (has two meanings)
Central Ray or computed radiography
DR
Digital radiography
ED
Emergency Department
IP
Image plate
IR
Image Receptor
L
Left
LAO
Left anterior oblique
OID
Object-to-image receptor distance
OR
Operating room
PA
Posteroanterior
R
Right
RA
Radiologist Assistant
RPA
Radiology practitioner assistant
RPO
right posteror oblique
SID
Source-to-image receptor distance
SSD
source-to-skin distance
Anatomy
Science of the structure of the body
Physiology
Is the study of the function of the body organs
Osteology
is the detailed study of the body of knowledge related to the bones of the body
Sagittal Plane
Divides the entire body or a body part into right and left segments. The plane passes vertically through the body from front to back.
Midsagittal
is a specific sagittal plane that passes through the midline of the body and divides it into equal right and left halves.
Coronal Plane
Divides the entire body or a body part into anterior and posterior segments. The plane passes through the body vertically from one side to the other.
Midcoronal
is a specific coronal plane that passes through the midline of the body, dividing it into equal anterior and posterior halves (this plane is also referred to as the midaxillary plane)
Horizontal Plane
Passes crosswise through the midline of the body or a body part at right angles to the longitudinal axis. This plane divides the body into superior and inferior portions.
It is positioned at a right angle of the sagittal and coronal plane.
(often referred to as an axial, transverse or cross-sectional plane)
Oblique Plane
Passes through a body part at any angle among the three planes (sagittal, coronal and horizontal)
Interiliac Plane
transects the pelvis at the top of the iliac crests at the level of the fourth lumbar spinous process (used to position the lumbar spine, sacrum, and coccyx)
Occlusal Plane
is formed by the biting surfaces of the upper and lower teeth with the jaws closed (used to position the odontoid process and in some head projecttions)
RUQ
Right upper quadrant
RLQ
Right lower quadrant
LUQ
Left upper quadrant
LLQ
Left lower quadrant
Mastoid Tip
C1
Gonion (angle of mandible)
C2, C3
Hyoid Bone
C3, C4
Thyroid Cartilage
C5
Vertebra Prominens
C7, T1
Approximately 2 inches (5 cm) above level of jugular notch
T1
Level of jugular notch
T2, T3
Level of Sternal Angle
T4, T5
Level of inferior angles of scapulae
T7
Level of xiphoid process
T9, T10
Inferior costal margin
L2, L3
Level of superior-most aspect of iliac crest
L4, L5
Level of anterior superior iliac spine (ASIS)
S1, S2
Level of pubic symphysis and greater trochanters
Coccyx
Ossification
is the term given to the development and formation of bones
Foramen
hole in a bone for transmission of blood vessels and nerves
Arthrology
Study of joints or articulations between bones
Synarthroses
immovable joints
Amphiarthroses
slightly moveable
Diarthroses
freely moveable
Fossa
Pit, fovea, or hollow space
Notch
Indentation into border of a bone
Closed fracture
fracture that does not break through the skin
Displaced fracture
serious fracture in which bones are not in anatomic alignment
Nondisplaced fracture
fracture in which bone retains its normal alignment
Open fracture
Serious fracture in which broken bone or bones project through the skin
Anterior (ventral)
refers to forward or front part of body or forward part of an organ
Posterior (dorsal)
refers to back part of body or organ
Note that the superior surface of the foot is referred to as the dorsal surface
Caudad
refers to parts away from the head of the body
Cephalad
refers to parts towards the head of the body