Exam 2 - Basic Osteology (Coccyx and Sternum and Ribs)

Question 1

What is the typical number of segments that unite to form the adult coccyx?

Answer 1

4 segments

Question 2

What bony features are present on the coccyx?

Answer 2

all segments are represented by a vertebral body

in addition, Co1 has a coccygeal cornu and transverse process

Question 3

What feature is present at the top of the manubrium sterni?

Answer 3

jugular notch (suprasternal notch)

Question 4

What is the name given to the articular site at the superolateral margin of the manubrium sterni?

Answer 4

clavicular notch

Question 5

What names are given to the articular sites for the joint with the first and second rib?

Answer 5

costal notch I for the first rib costal cartilage

costal notch II for the second rib costal cartilage

Question 6

How many sternabrae for the corpus sterni?

Answer 6

4 sternabrae

Question 7

What surface feature on the corpus sterni identifies the location of the old synchondroses?

Answer 7

transverse lines

Question 8

What articular sites for the costal cartilage of ribs will be identified on the corpus sterni?

Answer 8

costal notches II-VI

Question 9

What feature of the corpus sterni is present in 4-7% of the population?

Answer 9

a sternal foramen

Question 10

What are the primary parts of the vertebral end of a typical rib?

Answer 10

head
neck
tubercle

Question 11

What features may be identified on the head of a typical rib?

Answer 11

two articular surfaces and the interarticular crest

Question 12

what feature on the head of a rib seperates the superior and inferior articular facet?

Answer 12

interarticular crest

Question 13

What features may be identified on the neck of a typical rib?

Answer 13

crest of the rib

Question 14

What features may be identified on the tubercle of a typical rib?

Answer 14

the articular surface of the tubercle

nonarticular surface of the tubercle

Question 15

Which feature of the tubercle of a typical rib is closer to the head of the rib?

Answer 15

the articular surface of the tubercle

Question 16

What is present on the head of the first rib?

Answer 16

a single articular surface

Question 17

What is lacking at the head of the first rib?

Answer 17

an interarticular crest

Question 18

Is there a crest of the neck of the first rib?

Answer 18

not a well-developed one like on the typical rib

Question 19

What is unique about the body (corpus or shaft) of the first rib?

Answer 19

the body of the first rib is flattened and has a scalene tubercle flanked by the groove for the subclavian artery and the groove for the subclavian vein

Question 20

Which groove of the body of the first rib is close to the vertebral end?

Answer 20

the groove for the subclavian artery and the first thoracic nerve

Question 21

Which groove on the body of the first rib is close to the sternal end?

Answer 21

groove for the subclavian vein

Question 22

What features may be identified on the head of rib 2?

Answer 22

two articular surfaces and the interarticular crest

Question 23

What feature of the head of rib 2 separates the superior from inferior articular facet/surface?

Answer 23

the interarticular crest

Question 24

What feature may be identified on the neck of rib 2?

Answer 24

the crest of the rib

Question 25

What feature may be identified on the tubercle of rib 2?

Answer 25

the articular surface of the tubercle

the non-articular surface of the tubercle

Question 26

Which feature of the tubercle of rib 2 is closer to the head of the rib?

Answer 26

the articular surface of the tubercle

Question 27

What unique feature is present on the body of the second rib?

Answer 27

tuberosity for the serratus anterior

Question 28

What distinguishes the vertebral end of rib 11 from typical ribs?

Answer 28

the single articular surface
absence of a well-developed crest on the neck
tubercle may be absent or present
if present on contains a non-articular surface

Question 29

What helps distinguish the vertebral end of the twelfth rib from other ribs?

Answer 29

the head has a single articular surface
the crest of the neck is poorly developed
the tubercle is absent