6430 WEEK 9

Question 1

What is the Thorax?

Answer 1

upper part of the trunk located between the neck and the abdomen

Question 2

What does the thoracic cage consist of?

Answer 2

12 thoracic vertebrae posteriorly
12 pairs of ribs in there costal cartilages
Sternum Anteriorly

Question 3

What does the tubercle of the rib articulate with?

Answer 3

Articulates with the transverse process

Question 4

of true ribs

Answer 4

7

Question 5

of false ribs

Answer 5

5

Question 6

Vertebrosternal ribs

Answer 6

7 (true ribs)

distal attachment to sternum

Question 7

Vertebrocostal Ribs

Answer 7

3

Vertebra to costal cartilage of 7th rib

Question 8

Vertebral ribs

Answer 8

2
only articulate with vertebra posteriorly
floating class

Question 9

Does the L1 vertebra have a rib?

Answer 9

NO

Question 10

Angle of Louis

Answer 10

junction between the body + manubrium of sternum

Question 11

Thoracic Vertebrae

Answer 11

Have facets on their bodies for articulation of the head of the ribs
Have facets on their transverse processes for articulation with the rib tubercle

Question 12

Ribs

Answer 12

7 pairs of TRUE ribs (vertebrosternal)
3 pairs of FALSE ribs (do not articulate with the sternum via their own costal cartilage | vertebrocostal)
2 pairs of FLOATING ribs (do not articulate with the sternum | vertebral )

Question 13

FLOATING ribs are also ___ ribs.

Answer 13

FALSE

Question 14

Costovertebral Joint

Answer 14

articulate head of rib with vertebra

Question 15

Costotransverse Joint

Answer 15

between 7th rib and 7th thoracic transverse process

Question 16

How many levels below is the spinous process of T7.

Answer 16

1 whole level below

Question 17

Superior Costotransverse Ligament

Answer 17

comes from superior surface of neck of rib to superior transverse process

Question 18

Intrarticular ligament

Answer 18

attach to the IVD (part of the IVD)

Question 19

Joint types

Answer 19

2 Facet Joints - lamina join together behind the ribs
2 Costovertebral Joints - rib attaching to vertebra
2 Costotrasnverse Joints - transverse process + ribs

Question 20

Ratio disc : body height

in thoracic spine

Answer 20

1:5
1cm of IVD : 5 cm of thoracic vertebral body
Discs are thinner and vertebral bodies are also taller

Question 21

Facet Joints allow for what type of movement?

Answer 21

Flexion + Extension

Question 22

Radiate ligament

Answer 22

ligament runs from the head of the rib to vertebral body

Question 23

Costotransverse ligament

Answer 23

ligament runs from back of neck of rib to transverse process

Question 24

lateral costotransverse ligament

Answer 24

runs from the tubercle of rib to the transverse process

Question 25

Intertransverse ligament

Answer 25

runs from transverse process to transverse process

Question 26

Upper joints of Costotransverse Joint

Answer 26

Convex/concave

allow for spin or rotation of ribs

Question 27

Lower Joints of Costotransverse Joint

Answer 27

Planar
allow for slide, elevation/ depression of ribs
bucket handle

Question 28

Costovertebral Joint

Answer 28

articulation of the head of the rib with the superior part of the body of the corresponding thoracic vertebra
inferior part of the body of the vertebra above the IVD

synovial plane joint (gliding movement)

Question 29

Radiate Ligament

Answer 29

a thickening of the anterior capsule surrounding the head of the rib and the two bodies of the vertebrae

Question 30

Intra-articular ligament

Answer 30

attaches the head of the rib to the IVD

Question 31

Costotransverse Joint

Answer 31

articulation of the tubercle of the rib with the associated transverse process
synovial plane joint
supported both superiorly and laterally by the superior and lateral costotransverse ligaments

Question 32

Costochondral Junction

Answer 32

secured by surrounding/enveloping periosteum which is continuous of perichondrium of the cartilage

Question 33

Costal Cartilage is ___ in nature

Answer 33

convex

Question 34

costochondral joints

Answer 34

articulation of the sternal end of the ribs with the costal catilage
primary cartilaginous joints

Question 35

Sternocostal Joints

Answer 35

Articulation of the costal cartilages with the manubrium and sternum
1st rib is a primary cartilaginous joint
2nd-7th rib are synovial joints
these joints are supported by anterior and posterior radiate sternocostal ligament

Question 36

Three parts of the sternum

Answer 36

Manubrium
Body
Xiphoid (ZYphoid)

Question 37

Vertical Contraction of inspiration

Answer 37

contraction of the diaphragm causing a lowering of the diaphragm
increases vertical height, vertical volume

Question 38

Transverse Contraction of inspiration

Answer 38

bucket handle movement of ribs (planar), primarily by ribs 8-10

Question 39

Anterior/Posterior contraction of inspiration

Answer 39

pump handle movement (convex/concave) or ribs, primarily by ribs 1-7

Question 40

How many pairs of intercostal muscles each?

Answer 40

11 pairs

within the spaces of the 12 ribs

Question 41

External Intecostals

Answer 41

Run obliquely (inferiorly and anteriorly)
anterior inferior direction
muscular posteriorly and membranous anteriorly

Question 42

Where do the intercostal vessels and nerve run?

Answer 42

Travel between the internal and innermost intercostal

Question 43

Internal Intercostals

Answer 43

run posteriorly and inferiorly
deep to the external intercostals
muscular anteriorly and membranous posteriorly

Question 44

Innermost Intercostals

Answer 44

Run obliquely, posteriorly, and inferiorly
separated from the internal intercostals by the intercostal nerves and vessels
membranous anteriorly and posteriorly
muscular in the middle