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41 terms

General procedural considerations

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Angulation of the central ray may be required
1. to avoid superimposition of overlying structures.
2. to avoid foreshortening or self-superimposition.
3. to project through certain articulations.
The body habitus characterized by a long and narrow thoracic cavity and low, midline stomach and gallbladder is the
asthenic
The four types of body habitus describe
differences in visceral shape, position, tone, and motility
hypersthenic
very large individual with short, wide heart and lungs; high transverse stomach and gallbladder; and peripheral colon; usually demonstrate the greatest motility
sthenic
average, athletic, most predominant type
hyposthenic
somewhat thinner and a little more frail, with organs positioned somewhat lower
asthenic
smaller in the extreme, with a long thorax; a very long, almost pelvic stomach; and a low medial gallbladder. The colon is medial and redundant.
Which of the following fracture classifications describes a small bony fragment pulled from a bony process?
Avulsion fracture
avulsion fracture
a small bony fragment pulled from a bony process as a result of a forceful pull of the attached ligament or tendon.
comminuted fracture
one in which the bone is broken or splintered into pieces.
torus fracture
a greenstick fracture with one cortex buckled and the other intact
compound fracture
an open fracture in which the fractured ends have perforated the skin.
The plane that passes vertically through the body, dividing it into anterior and posterior halves, is termed the
midcoronal plane
median sagittal, or midsagittal, plane
passes vertically through the midline of the body, dividing it into left and right halves.
Any plane parallel to the MSP is termed
a sagittal plane
midcoronal plane
perpendicular to the MSP and divides the body into anterior and posterior halves.
transverse plane
passes through the body at right angles to a sagittal plane.
Movement of a part toward the midline of the body is termed
adduction
Eversion
movement of the foot caused by turning the ankle outward
Inversion
foot motion caused by turning the ankle inward
Abduction
movement of a part away from the midline
The term that refers to parts closer to the source or beginning is
proximal
Cephalad
refers to that which is toward the head
caudad
that which is toward the feet
The functions of which body system include mineral homeostasis, protection, and triglyceride storage?
skeletal
Yellow bone marrow
composed mainly of fat cells and stores triglycerides for use as an energy reserve
decubitus position
used to describe the patient who is recumbent (prone, supine, or lateral) with the central ray directed horizontally.
Which of the following are characteristics of the hypersthenic body type?
1. Short, wide, transverse heart
2. High and peripheral large bowel
Which of the following positions is obtained with the patient lying prone recumbent on the radiographic table, and the central ray directed horizontally to the iliac crest?
Ventral decubitus position
AP recumbent
dorsal decubitus position
lying prone
ventral decubitus position
Which of the following devices should not be removed before positioning for a radiograph?
1. An antishock garment
2. A pneumatic splint
antishock garment
used when a patient has suffered a traumatic incident and is suffering from internal bleeding; it functions to slow the rate of bleeding.
air cast
used to temporarily support a fractured limb until surgery and/or a more permanent cast is in place
Both antishock garments and air splints are
radiolucent
The best way to control voluntary motion is
careful explanation of the procedure
Standard radiographic protocols may be reduced to include two views, at right angles to each other, in which of the following situations
Emergency and trauma radiography
Osteoblasts
cells of mesodermal origin that are concerned with formation and repair of bone.
Osteoclasts
cells concerned with the breakdown and resorption of old or dead bone
osteoma
a benign bony tumor
osteon
the microscopic unit of compact bone, consisting of a haversian canal and its surrounding lamellae.