Anatomy
How many separate bones are found in the adult human body?
206
Where is the CR centered for a PA projection of the hand
3rd MCP joint
Infection of bone or bone marrow caused by bacteria is termed __________.
Osteomyelitis
Keeping the phalanges parallel to the IR prevents _____________
Foreshortening of phalanges and obscuring of interphalangeal joints
A position in which the head is lower than the feet is:
Trendelenburg
What are the elevated projections on the humerus where the muscles attach to?
Medial and lateral epicondyle
Where is the central ray (CR) placed for an anteroposterior (AP) supine, chest projection?
3 to 4 inches (8 to 10 cm) below the jugular notch.
What is the most common bone to fracture in the hand?
Scaphoid
A true lateral finger should show equal concavity of what aspects of the phalanges.
anterior and posterior aspects
Movement in the form of a circle is the definition for:
Circumduction
Which system of the human body is responsible for the elimination of solid waste?
Digestive
When performing PA or AP chest radiography what are the patient instructions?
Give breathing instructions twice and expose on 2nd inspiration.
What pathology does an AP oblique bilateral hands projection (“ball-catcher’s position”) evaluate?
Rheumatoid Arthritis
A minimum of ________ __________ ribs should be seen above the diaphragm on an optimal chest radiograph.
10 posterior
The path or direction of the central ray defines the __________.
Projection
Name two bones of the wrist.
Scaphoid, lunate, triquetral, pisoform, trapezium, trapezoid, capitate, hamate
What positioning adjustment should you make when imaging a patient with very large pendulous breast?
Ask patient to lift breasts up and outward
Where does a Bennett's Fx occur?
Base of the first metacarpal
A separation of greater than ____ indicates objectionable rotation from a true lateral on a chest radiograph.
1 cm
The structural term for a freely movable joint is _____________.
Synovial
Where are the three concentric arcs of the elbow?
1st (inner)- Trochlear Sulcus or groove, 2nd (middle) - ridges of capitulum and trochlea, 3rd (outer) - trochlear notch of ulna
Which routine projection of the elbow best demonstrates the olecranon process in profile?
Lateral
Which way do carpal bones go when you have a colles' fracture?
posterior
In which routine projection of the elbow are the radial head and tuberosity shown free of superimposition?
AP Oblique with lateral rotation
The patient is erect facing the image receptor. The left side of the body is turned 45° toward the image receptor adjacent to IR. The CR enters the posterior aspect of the body and exits the anterior. What is the radiographic projection and position?
PA Oblique Projection, LAO position