Question 1

The term supine means lying on the abdomen, face downward.

Accepted Answer

The term supine means lying on the back, face upward, not on the abdomen.

Question 2

The signal provided by a CT detector must be converted from a digital format to an analog format prior to being sent to the computer.

Accepted Answer

The signal from a CT detector is initially in an analog format and must be converted to a digital format before being processed by the computer.

Question 3

The term superior means toward the tail end of the spine.

Accepted Answer

The term "superior" refers to a position above or higher than another part of the body, not toward the tail end of the spine.

Question 4

The terms superior and inferior have opposite meanings.

Accepted Answer

Superior means higher in rank, quality, or importance, while inferior means lower on the same scales, making them opposites.

Question 5

The most commonly employed contrast media in MRI is gadolinium based.

Accepted Answer

Gadolinium-based contrast agents are the most commonly used contrast media in Magnetic Resonance Imaging (MRI) because they significantly enhance the quality of the images by altering the magnetic properties of nearby water molecules, making it easier to visualize internal structures.

Question 6

The phrases horizontal plane, transverse plane, and axial plane are all synonymous.

Accepted Answer

All three terms refer to the same anatomical plane, which divides the body into upper and lower parts.

Question 7

The term medial means toward the midline of the body.

Accepted Answer

The term "medial" refers to a position closer to the midline of the body, which is the imaginary line that divides the body into equal right and left halves.

Question 8

As the number of rows of detectors increases in a CT gantry, the number of slices obtained with each revolution of the tube decreases.

Accepted Answer

As the number of rows of detectors increases in a CT gantry, the number of slices obtained with each revolution of the tube actually increases, allowing for more data to be captured in the same amount of time.

Question 9

The term posterior means toward the back of the body or body part.

Accepted Answer

The term "posterior" refers to the back or rear position in relation to the body or a body part, opposite to "anterior" which means toward the front.

Question 10

The term ventral means toward the back of the body or body part.

Accepted Answer

The term ventral means toward the front or belly side of the body or body part, opposite of dorsal, which refers to the back side.

Question 11

Those with a hyposthenic build have a build somewhere between asthenic and sthenic.

Accepted Answer

A hyposthenic build is indeed considered to be intermediate between the slender, lightly muscled asthenic build and the more robust, heavily muscled sthenic build.

Question 12

A horizontal, transverse, or axial plane is a plane running at an angle, not parallel to the sagittal, coronal, or horizontal plane.

Accepted Answer

A horizontal, transverse, or axial plane runs parallel to the ground and divides the body into upper and lower parts, not at an angle to the sagittal, coronal, or horizontal planes.

Question 13

The terms cephalad and caudal are synonymous.

Accepted Answer

Cephalad refers to a direction towards the head or anterior end of the body, while caudal refers to a direction towards the tail or posterior end.

Question 14

The presence of ferromagnetic objects in the body or in the CT scanning room can pose a safety hazard for those having a CT scan.

Accepted Answer

CT scans use X-rays, not magnetic fields, so ferromagnetic objects in the body or in the scanning room do not pose the same safety hazard as they would in MRI (Magnetic Resonance Imaging), where strong magnetic fields are used.

Question 15

The term caudal means toward the tail end of the spine.

Accepted Answer

The term "caudal" refers to a direction that is towards the tail or posterior part of the body, which is the direction towards the end of the spine in vertebrates.

Question 16

In CT imaging, the X-ray beam is perpendicular to the part being imaged.

Accepted Answer

In CT imaging, the X-ray beam is typically oriented in a spiral or helical path around the part being imaged, not perpendicular to it.

Question 17

A person in the anatomic position is standing face forward, with palms of hands facing anteriorly.

Accepted Answer

In the anatomic position, the body is standing upright, facing forward, with arms at the sides and the palms of the hands facing forward, which is considered the anterior direction.

Question 18

The terms proximal and distal are synonymous.

Accepted Answer

Proximal and distal are anatomical terms used to describe locations on the body relative to a reference point; proximal means closer to the trunk or point of attachment, while distal means farther from the trunk or point of attachment.

Question 19

A sagittal plane runs crosswise through the body at right angles to the coronal plane, dividing the body into anterior and posterior parts.

Accepted Answer

A sagittal plane divides the body into left and right parts, not anterior and posterior parts; the coronal (or frontal) plane is the one that divides the body into anterior and posterior parts.

Question 20

The term internal means nearer the outside of the body or an organ.

Accepted Answer

The term "internal" means nearer to the inside or center of the body or an organ, opposite of external, which means nearer to the outside.

Quiz 1: Introduction