LABS 3&4 thoracic vertebrae and ribs

Question 1

what other bones of the skeleton do all thoracic vertebrae articulate with?

Answer 1

ribs

Question 2

what two features are unique to thoracic vertebrae?

Answer 2

superior and inferior costal facets, and transverse costal facets

Question 3

why are the superior and inferor costal facets considered “demi” facets?

Answer 3

because each one represents half of a facet and can only be observed when two thoracic vertebrae articulate with each other

Question 4

what do the transverse costal facets articulate with?

Answer 4

each thoracic verteba’s corresponding rib

Question 5

possible features of rib

Answer 5

head, neck, angle, tubercle, subcostal groove, shaft/body

Question 6

which feature of the rib articulates with the superior/inferior costal facets?

Answer 6

head of rib

Question 7

which feature of the rib articulates with the transverse costal facets?

Answer 7

tubercle of rib

Question 8

which ribs are true ribs?

Answer 8

1-7

Question 9

which ribs are false ribs?

Answer 9

8-12 (11 and 12 floating ribs)

Question 10

what is the difference between true ribs and false ribs?

Answer 10

true ribs articulate with sternum, false ribs don’t directly articulate with sternum

Question 11

possible features of thoracic vertebrae

Answer 11

body, transverse process, spinous process, pedicle, superior and inferior articular facets, vertebral foramen, vertebral arch, lamina