CH 10 - Bony Thorax

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The functions of the thorax include: 1. protection of the _________ and lungs. 2. supports the wall of the pleural cavity and the ___________. 3. varies the volume of the __________ during respiration. a. diaphragm b. thoracic cavity c. heart

1: c. heart 2: a. diaphragm 3: b. thoracic cavity

*What is the degree of obliquity for the PA oblique projection (body rotation method) of the SC joints? A. 10 to 15 degrees B. 20 to 25 degrees C. 30 to 35 degrees D. 40 to 45 degrees

a. 10 to 15 degrees

*The sternal angle corresponds to the vertebral level of: A. T4-T5 B. T7 C. T9-T10 D. T2-T3

a. T4-T5

The ______ rib is the shortest and broadest. a. first b. second c. eleventh d. twelfth

a. first

The superior-most portion of the sternum is the: a. manubrium b. body c. xiphoid process

a. manubrium

*Which ribs are classified as true ribs? A. Rib pairs 1 through 7 B. Rib pairs 2 through 8 C. Rib pairs 8 through 12 D. Rib pairs 1 through 12

a. rib pairs 1 through 7

The body of the sternum joins the manubrium at the: a. sternal angle b. costophrenic angle c. jugular notch d. sternoclavicular joint

a. sternal angle

The ________ is centered on the midline of the thorax and includes 3 parts. a. sternum b. thorax c. manubrium d. xiphoid process

a. sternum

*The sternocostal joint of the first rib is classified as: A. Synarthrodial B. Amphiarthrodial C. Diarthrodial D. Not classified as a joint

a. synarthrodial

*A hypersthenic patient requires greater rotation of the sternum for the RAO projection as compared with a sthenic patient. A. True B. False

a. true

*The anterior ends of the ribs do not attach directly to the sternum. A. True B. False

a. true

Ribs 1-7 are classified as: a. true ribs b. false ribs c. floating ribs

a. true ribs

_________ attach directly to the sternum. a. true ribs b. false ribs c. floating ribs

a. true ribs

The ________ ends of the ribs lie lower than the ________ ends. (posterior/anterior)

anterior; posterior

*Which position can replace the RAO sternum for the trauma patient who cannot lie prone or stand? A. Right lateral decubitus B. LPO C. RPO D. Horizontal beam lateral

b. LPO

The xiphoid process often deviates from the midline and lies over _______. a. T9 b. T10 c. T11 d. T12

b. T10

The manubrium lies at the _______ interspace. a. T1-T2 b. T2-T3 c. T3-T4 d. T4-T5

b. T2-T3

The middle portion of the sternum is the: a. manubrium b. body c. xiphoid process

b. body

The T spine transverse processes form: a. manubriosternal joints b. costotransverse joints c. costovertebral joints d. sternocostal joints

b. costotransverse joints

Ribs 8-12 are classified as: a. true ribs b. false ribs c. floating ribs

b. false ribs

________ attach indirectly to the sternum via costal cartilage. a. true ribs b. false ribs c. floating ribs

b. false ribs

The superior border of the manubrium forms the __________. a. xiphoid process b. jugular notch c. trachea d. hyoid bone

b. jugular notch

The numbering of the ribs corresponds to the __________ vertebra to which it attaches. a. cervical b. thoracic c. lumbar d. sacral

b. thoracic

A typical rib consists of: - head - neck - __________ - body a. tuberosity b. tubercle c. cartilage d. joint

b. tubercle

The _________ articulate with the thoracic spine. a. heads b. tubercles c. transverse processes d. sternal angles

b. tubercles

*Which of the following would best demonstrate the posterior ribs above the diaphragm? A. PA projection; exposed after inspiration B. PA projection; exposed after expiration C. AP projection; exposed after inspiration D. AP projection; exposed after expiration

c. AP projection; exposed after inspiration

*The inside margin of the rib, containing the blood vessels and nerves, is called the: A. Medullary portion B. Costocartilage C. Costal groove D. Pleural surface

c. costal groove

The head of the ribs articulate with the vertebral bodies to form the ____________. a. transverse processes b. costotransverse joints c. costovertebral joints d. sternocostal joints

c. costovertebral joints

Ribs 11-12 are classified as: a. true ribs b. false ribs c. floating ribs

c. floating ribs

_________ attach only to the vertebrae. a. true ribs b. false ribs c. floating ribs

c. floating ribs

The sternum provides attachment for costal cartilages of the first seven pairs of ribs at the ________ borders. a. superior b. inferior c. lateral d. posterior

c. lateral

The inferior-most portion of the sternum is the: a. manubrium b. body c. xiphoid process

c. xiphoid process

*What is the degree of obliquity for the AP oblique projection of the ribs? A. 15 degrees B. 20 degrees C. 35 degrees D. 45 degrees

d. 45 degrees

*Which of the following positioning/technical considerations does NOT apply to a rib study for an injury to the right, lower posterior ribs? A. AP projection B. Recumbent position C. Exposure upon expiration D. LPO projection

d. LPO projection

The sternal angle between the manubrium and the body is palpable and is located at the _______ interspace. a. T1-T2 b. T2-T3 c. T3-T4 d. T4-T5

d. T4-T5

*Which of the following technical considerations does NOT apply to a rib study for an injury to the left, upper anterior ribs? A. PA projection B. RAO projection for axillary ribs C. Erect position D. Exposure upon expiration

d. exposure upon expiration

In the PA oblique position for imaging the sternum, the sternum should be projected over the _______ in the image. a. diaphragm b. spine c. stomach d. heart shadow

d. heart shadow

Ribs are numbered 1-12 starting at the most __________ rib. a. posterior b. inferior c. anterior d. superior

d. superior

The __________ is formed by: -sternum -12 pairs of ribs -12 thoracic vertebrae a. spinal column b. thoracic cavity c. peritoneum d. thorax

d. thorax

*The most inferior portion of the sternum is the: A. Manubrium B. Jugular notch C. Body D. Xiphoid

d. xiphoid

In an RAO position, which is the side of interest? (left/right)

left

You are asked to perform a PA oblique projection in LAO position, which is the side of interest? (left/right)

right

You get an order for an AP oblique projection in RPO position, which is the side of interest? (left/right)

right


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