Spinal Lecture 8 - Costal Joints

Question 1

Any disturbance that reduces mobility of costal joints will affect _____

Answer 1

respiration

Question 2

heads of the rib articulate with the ___ (_____) on the margins of adjacent thoracic vertebral bodies and IVD between them

Answer 2

facets (demifacets)

Question 3

the ____ ribs articulate with a single vertebrae by a simple synovial joint

Answer 3

1st, 10th, 11th, 12th

Question 4

the ______ connects costal heads to the circumference of the articular surfaces formed by IVD and demifacets of adjacent vertebrae

Answer 4

fibrous capsule

Question 5

Costovertebral joints: posterior fibers of the capsule are continuous with the _____ ligaments

Answer 5

costotransverse

Question 6

______ ligaments connect the anterior parts of each costal head to the bodies of two vertebrae and their IVD

Answer 6

Radiate

Question 7

What does the superior / inferior fibres of the radiate ligament attach to

Answer 7

superior fibers ascend to the vertebral body above

inferior fibres to the body below

Question 8

What does the intermediate fibres of the radiate ligament attach to?

Answer 8

Attached to disc

intermediate fibers, shortest and least distinct, are horizontal and attached to the disc

Question 9

in the first rib the radiate ligament is attached to __ and ___

Answer 9

C7 and T1

Question 10

What does the radiate ligament attach to at the 10th-12th rib?

Answer 10

in 10th-12th rib the ligament attaches to the vertebrae above and below

Question 11

Costovertebral joints: Describe the intra-articular ligament

Answer 11

A1: attached laterally to the crest between the costal articular facets
A2: medially to the IVD dividing the joint into 2 synovial cavities
D: Intra-articular ligament is a short flat band
R: T1 and T10-12 the intra-articular ligament is absent

Question 12

Describe costovertebral joint test

Answer 12

place your thumb on the spinous process and finger on the angle of the rib…the movement is anterior and medial so the spinous process should move away from the test side

Due to rib and proximity there is little gliding action

Question 13

the facet of a costal tubercle articulates with the ____ of its own vertebra. Which ribs lack this articulation?

Answer 13

TP

11 and 12

Question 14

Costotransverse joints: the fibrous capsule is thin and attached to _____ and it has synovial lining

Answer 14

articular peripheries

Question 15

T/F costotransverse joints ligaments are capsular

Answer 15

True

Question 16

Costotransverse joints: the 12th rib is connected at the shaft, near the head, to the base of the 1st lumbar transverse process by a ________ ligament

Answer 16

lumbocostal ligament

Question 17

Describe what spaces the costotransverse ligament fills

Answer 17

fills the costotransverse foramen between the costal neck and the corresponding transverse process—the posterior aspect of the rib, the head and the non-articulating tubercle

Question 18

Describe the superior CT ligament

Answer 18

Anterior layer:
A1:costal neck
A2:lower aspect of the TP above
FD: passing upwards and laterally

Posterior layer:
A1: attached dorsally on the costal neck, the superior part of the rib,
A2: TP above
FD: ascending posteromedially

Question 19

Describe the lateral CT ligament

Answer 19

A1: Apex of a transverse process
A2: rough non-articular part of the adjacent costal tubercle
FD:passes obliquely from the apex
D: short, thick, and strong fibers
R: lateral CT blends with the external intercostals muscle

Question 20

What ribs do not have a costotransverse ligament?

Answer 20

First rib, T11, T12

Question 21

How do you test the costotransverse ligament?

Answer 21

to test: place thumb on spinous process of vertebrae and finger just lateral to the CT joint…the movement is posterior to anterior..spinous process should move toward the test side

Question 22

What does the first rib articulate with anteriorly?

Answer 22

1st rib articulates with manubrium and clavicle with a capsule that encompasses all three bones

Question 23

What are chondrosternal articulations?

Answer 23

costal cartilages join small concavities on the lateral sternal borders—chondrosternal articulations

Question 24

Describe the different aspects of the sternum

Answer 24

Manubrium
Jugular/suprasternal notch
Sternal angle
Body (T5-9)
Fuse (by age 25)
Xiphoid process (T10)

Question 25

Describe sternocostal joints

Answer 25

articular surfaces are fibrocartilaginous

fibrous capsule surrounds the 2nd to 7th sternocostal joints
thin

blend with the sternocostal ligaments

strengthened above and below by fibers connecting the cartilages to the sternum

Question 26

Describe the radiate sternocostal ligament

Answer 26

A1: sternal ends of the cartilage of true ribs
A2: corresponding sternal surfaces
D: broad, thin bands radiating from the front and back
R: superficial fibers intermingle with adjacent ligaments above and below with those of the opposite side and with tendinous fibers of pectoralis major, forming a thick fibrous membrane around the sternum, more markedly in its lower part

Question 27

Describe the costoxiphoid ligament

Answer 27

connect anterior and posterior surfaces of the 7th costal cartilage to the same surface of the xiphoid process

Question 28

Describe interchondral joints

Answer 28

the 6th-9th costal cartilages articulate by apposition of small oblong facets each enclosed in a thin fibrous capsule lined by synovial lining with medial and lateral interchondral ligaments

Plane synovial joints

Question 29

Describe costochondral joints

Answer 29

costal cartilage has a rounded end, the rib a depression

the periosteum and perichondrium are continuous

Hyaline cartilaginous joints