Rib DSA

Question 1

What does the rib head articulate with?

Answer 1

superior costal facet (own vertebra) and inferior costal facet (vertebra above)

Question 2

What is the rib neck?

Answer 2

area between the head and the tubercle

Question 3

Define tubercle

Answer 3

articulates with the transverse process of corresponding vertebra

Question 4

Define rib angle

Answer 4

abrupt change in rib curvature

Question 5

Which ribs only articulate with their own vertebrae?

Answer 5

1, 10, 11, 12

Question 6

Which ribs do not have tubercles and therefore do not articulate with transverse processes?

Answer 6

11, 12

Question 7

What ribs are considered atypical?

Answer 7

1, 2, 11, 12 (sometimes 10)

Question 8

What ribs are called typical?

Answer 8

3-9 (sometimes 10)

Question 9

Which ribs are true ribs?

Answer 9

1-7

cartilage attaches to sternum

Question 10

Which ribs are false ribs?

Answer 10

8-12

8-10 cartilages attaches to costal cartilage of the rib above

Question 11

Which ribs are floating ribs?

Answer 11

11-12

no anterior attachment

Question 12

Insertion and action of anterior scalene

Answer 12

superior surface of 1st rib

side bends and rotates neck (unilateral), flexes neck (bilateral)

Question 13

Insertion and action of middle scalene

Answer 13

superior surface of 1st rib

lateral flexion of neck

Question 14

Insertion and action of posterior scalene

Answer 14

2nd rib

elevates 2nd rib, lateral flexion of neck

Question 15

Origin and action of pectoralis minor

Answer 15

anterior superior surface of ribs 3,4,5,

stabilizes scapula

Question 16

Insertion and action of serratus anterior

Answer 16

superior lateral surface of ribs 2-8

protracts scapula

Question 17

Origin and action of Latissimus Dorsi

Answer 17

lower 4 ribs

extends, adducts, medially rotates humerus

Question 18

Insertion and action of Quadratus Lumborum

Answer 18

inferior aspect of rib 12
extends and laterally flexes the vertebral column
fixes the 12th rib in inhalation

Question 19

Action of external intercostals

Answer 19

elevate ribs during forced inspiration

Question 20

Action of internal intercostals

Answer 20

depression of ribs

Question 21

Action of innermost intercostals

Answer 21

depression of ribs

Question 22

action of diaphragm

Answer 22

descends during inspiration

Question 23

Mnemonic for scalenes

Answer 23

I get up at 1 AM 2 P

Anterior- elevates 1st rib
Middle- elevates 1st rib
Posterior- elevates 2nd rib

Question 24

Where are the veins, artery and nerve found?

Answer 24

VAN under the rib; found between the internal intercostal muscle and innermost intercostal muscle

Question 25

Motion of anterior posterior rib axis

Answer 25

bucket handle

Question 26

Motion of functional transverse rib axis

Answer 26

pump handle

Question 27

Which ribs move in a bucket handle motion?

Answer 27

1-2 8-10 move superiorly and laterally increase transverse diameter

Question 28

Which ribs move in a pump handle motion?

Answer 28

3-7 superiorly and anteriorly increase AP diameter

Question 29

Which ribs move in a caliper motion?

Answer 29

11, 12 downward and posterior with inhalation upward and superior with exhalation

Question 30

What happens to the left 6th rib when T5 is rotated to the left?

Answer 30

posterior aspect turns externally | anterior extremity more flat with its inferior border sharp

Question 31

What happens to the right 6th rib when T5 is rotated to the left?

Answer 31

posterior aspect rib turns internally | anterior extremity having its superior margin accentuated

Question 32

Example of torsional movment

Answer 32

take deep breath in, let it out turn to the left, take a deep breath in, let it out note difference in the amount of air you can take in

Question 33

What happens in physiologic movement?

Answer 33

trauma rib becomes dislocated abnormal hypermobility one or more of the ribs lose the usual plasticity and become restricted in a deformed state

Question 34

Define inhalation SD

Answer 34

rib being placed in a position of inhalation such that motion toward inhalation is more free and motion toward exhalation is restricted

Question 35

Exhalation SD

Answer 35

exhalation motion more free | inhalation motion restricted

Question 36

Key rib for inhalation SD

Answer 36

bottom of the group holds others up

Question 37

Key rib for exhalation SD

Answer 37

top of the group pushes others down

Question 38

Causes of rib dysfunction

Answer 38

- scoliosis or kyphosis - rib cage asymmetries - bone disease - increased chest wall diameter (COPD) - effects of abnormal tensions in cervical, rotator cuff, or shoulder musculature - trauma - lifestyle and affective states