Exam 3: Anterior Thorax

Question 1

Vertebral levels that correspond to the position of the manubrium sterni

Answer 1

T3-T4

Question 2

Participants in the sternoclavicular joint

Answer 2

Clavicle, manubrium sterni, costal cartilage of the first rib

Question 3

Vertebral levels that correspond to the position of the corpus sterni

Answer 3

T5-T9

Question 4

Number of sternabrae from the corpus sterni

Answer 4

4 sternabrae

Question 5

Ribs that join with corpus sterni via costal cartilage

Answer 5

Ribs 2-7

Question 6

Feature of the corpus sterni that is present in 4-7% of the population

Answer 6

Sternal foramen

Question 7

Causes of sternal foramen

Answer 7

Failure of the ossification centers of the sternum to fuse together normally

Question 8

What are the classifications of ribs 1 and 2 in typical adult

Answer 8

Atypical
True ribs
Costa verae
Vertebrosternal

Question 9

Classifications of ribs 8 and 9 in typical adult

Answer 9

Typical
False
Costa spuriae
Vertebrochondral

Question 10

Classifications of rib 10 in typical adult

Answer 10

Atypical
False
Costa spuriae
Vertebrochondral

Question 11

Classifications of ribs 11 or 12 in typical adult

Answer 11

Atypical
False
Costa spuriae
Vertebral (floating)

Question 12

Joint surfaces of costochondral joint

Answer 12

Costal cartilage w/ sternal end of each rib

Question 13

Joint classification of costochondral joint

Answer 13

Cartilaginous synchondrosis

Question 14

Joint classification given to joint between sternum, clavicle and 1st rib

Answer 14

Synovial saddle joint

Question 15

What ribs participate in sternocostal or sternochondral joint

Answer 15

Rib 1-7

Question 16

Classic classification of 1st sternocostal or sternochondral joint

Answer 16

Cartilaginous synchondrosis

Question 17

NEWER classification of first sternocostal or sternochondral joint

Answer 17

Cartilaginous symphysis

Question 18

Classification of 2nd-7th sternocostal or sternochondral joint

Answer 18

Synovial plane

Question 19

Joint surfaces of 2nd sternocostal/sternochondral joint

Answer 19

Costal cartilage of 2nd rib w/ costal notch II or manubrium, costal notch I of corpus and manubrium symphysis

Question 20

Joint surfaces of 3-7th sternocostal/chondral joint

Answer 20

Costal cartilage of ribs 3-7 w/ costal notch III-VII of corpus sterni

Question 21

Classification of 6th-9th interchondral joints

Answer 21

Synovial jplane

Question 22

Classification of 5-6 or 9-10 interchondral joint

Answer 22

Fibrous syndesmosis

Question 23

Costal cartilages fail to form a joint at sternal end

Answer 23

11th and 12th costal cartilages

Question 24

What forms manubriosternal joint

Answer 24

Fibrocartilage layer attaches manubrium to corpus sterni

Question 25

What sternal joint will ossify by age 40

Answer 25

Joint between corpus sterni and xiphoid process

Question 26

What is name given to segments of sternum

Answer 26

Sternabrae

Question 27

How many primary centers of ossification appear in manubrium

Answer 27

1-3 centers

Question 28

How many primary centers of ossification appear in corpus sterni

Answer 28

Typically 6

Question 29

Locations of primary centers of ossification in corpus sterni

Answer 29

One in each of first two sternabrae | Bilateral centers in last two sternabrae

Question 30

Primary centers of ossification for sternum first appear at what age

Answer 30

5th fetal month

Question 31

What part of sternum will a secondary center of ossification appear

Answer 31

Xiphoid process

Question 32

When does xiphoid process first demonstrate a center of oss

Answer 32

Sometime during or after 3 years old

Question 33

When will synchondroses between sternabrae begin to ossify

Answer 33

During puberty

Question 34

In what part of rib will primary centers of oss appear

Answer 34

The body

Question 35

In what parts of rib will secondary centers of oss appear

Answer 35

Head, articular surface and non-articular surface of tubercle

Question 36

Which ribs will demonstrate primary centers of oss for the body

Answer 36

All ribs

Question 37

Which ribs lack secondary centers of oss

Answer 37

11 and 12

Question 38

How does rib 1 differ in ossification centers from typical ribs

Answer 38

Rib 1 has 2 secondary centers: head and tubercle | Typical have 3 secondary

Question 39

How does rib 10 differ in ossification centers from typical ribs

Answer 39

Rib 10 has 2 secondary centers: head and tubercle