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

Spinal Anatomy > Exam 2 - Basic Osteology (Coccyx and Sternum and Ribs) > Flashcards

Flashcards in Exam 2 - Basic Osteology (Coccyx and Sternum and Ribs) Deck (29)
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1
Q

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

A

4 segments

2
Q

What bony features are present on the coccyx?

A

all segments are represented by a vertebral body

in addition, Co1 has a coccygeal cornu and transverse process

3
Q

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

A

jugular notch (suprasternal notch)

4
Q

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

A

clavicular notch

5
Q

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

A

costal notch I for the first rib costal cartilage

costal notch II for the second rib costal cartilage

6
Q

How many sternabrae for the corpus sterni?

A

4 sternabrae

7
Q

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

A

transverse lines

8
Q

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

A

costal notches II-VI

9
Q

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

A

a sternal foramen

10
Q

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

A

head
neck
tubercle

11
Q

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

A

two articular surfaces and the interarticular crest

12
Q

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

A

interarticular crest

13
Q

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

A

crest of the rib

14
Q

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

A

the articular surface of the tubercle

nonarticular surface of the tubercle

15
Q

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

A

the articular surface of the tubercle

16
Q

What is present on the head of the first rib?

A

a single articular surface

17
Q

What is lacking at the head of the first rib?

A

an interarticular crest

18
Q

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

A

not a well-developed one like on the typical rib

19
Q

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

A

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

20
Q

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

A

the groove for the subclavian artery and the first thoracic nerve

21
Q

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

A

groove for the subclavian vein

22
Q

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

A

two articular surfaces and the interarticular crest

23
Q

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

A

the interarticular crest

24
Q

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

A

the crest of the rib

25
Q

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

A

the articular surface of the tubercle

the non-articular surface of the tubercle

26
Q

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

A

the articular surface of the tubercle

27
Q

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

A

tuberosity for the serratus anterior

28
Q

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

A

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

29
Q

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

A

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