Rib DSA Flashcards

1
Q

What does the rib head articulate with?

A

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

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2
Q

What is the rib neck?

A

area between the head and the tubercle

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3
Q

Define tubercle

A

articulates with the transverse process of corresponding vertebra

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4
Q

Define rib angle

A

abrupt change in rib curvature

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5
Q

Which ribs only articulate with their own vertebrae?

A

1, 10, 11, 12

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6
Q

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

A

11, 12

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7
Q

What ribs are considered atypical?

A

1, 2, 11, 12 (sometimes 10)

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8
Q

What ribs are called typical?

A

3-9 (sometimes 10)

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9
Q

Which ribs are true ribs?

A

1-7

cartilage attaches to sternum

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10
Q

Which ribs are false ribs?

A

8-12

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

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11
Q

Which ribs are floating ribs?

A

11-12

no anterior attachment

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12
Q

Insertion and action of anterior scalene

A

superior surface of 1st rib

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

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13
Q

Insertion and action of middle scalene

A

superior surface of 1st rib

lateral flexion of neck

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14
Q

Insertion and action of posterior scalene

A

2nd rib

elevates 2nd rib, lateral flexion of neck

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15
Q

Origin and action of pectoralis minor

A

anterior superior surface of ribs 3,4,5,

stabilizes scapula

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16
Q

Insertion and action of serratus anterior

A

superior lateral surface of ribs 2-8

protracts scapula

17
Q

Origin and action of Latissimus Dorsi

A

lower 4 ribs

extends, adducts, medially rotates humerus

18
Q

Insertion and action of Quadratus Lumborum

A

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

19
Q

Action of external intercostals

A

elevate ribs during forced inspiration

20
Q

Action of internal intercostals

A

depression of ribs

21
Q

Action of innermost intercostals

A

depression of ribs

22
Q

action of diaphragm

A

descends during inspiration

23
Q

Mnemonic for scalenes

A

I get up at 1 AM 2 P

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

24
Q

Where are the veins, artery and nerve found?

A

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

25
Q

Motion of anterior posterior rib axis

A

bucket handle

26
Q

Motion of functional transverse rib axis

A

pump handle

27
Q

Which ribs move in a bucket handle motion?

A

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

28
Q

Which ribs move in a pump handle motion?

A

3-7
superiorly and anteriorly
increase AP diameter

29
Q

Which ribs move in a caliper motion?

A

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

30
Q

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

A

posterior aspect turns externally

anterior extremity more flat with its inferior border sharp

31
Q

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

A

posterior aspect rib turns internally

anterior extremity having its superior margin accentuated

32
Q

Example of torsional movment

A

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

33
Q

What happens in physiologic movement?

A

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

34
Q

Define inhalation SD

A

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

35
Q

Exhalation SD

A

exhalation motion more free

inhalation motion restricted

36
Q

Key rib for inhalation SD

A

bottom of the group holds others up

37
Q

Key rib for exhalation SD

A

top of the group pushes others down

38
Q

Causes of rib dysfunction

A
  • 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