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*OSII > 3. Ribs DSA > Flashcards

3. Ribs DSA Flashcards

1
Q

What does the rib’s head articulate with? tubercle?

A
  1. a. the superior costal facet of its own vertebra
    b. the inferior costal facet of the vertebra above
  2. TP of the corresponding vertebra
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2
Q

What is unique about the articulations of ribs 1, 10, 11, 12? just 11 and 12?

A
  1. only articulate with their own vertebra (not the one above)
  2. don’t have tubercles (so no TP articulation)
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3
Q

What are the atypical ribs?

A

1, 2, 11, 12

*10 is sometimes atypical, and sometimes typical

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4
Q

What ribs are true? false? floating?

A
  1. 1-7 - cartilage attaches to the sternum
  2. 8-12
    a. 8-10 - cartilage attaches to the costal cartilage of the rib above
    b. 11-12 - no anterior attachment
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5
Q

Anterior Scalene

  1. Insertion
  2. Action
A
  1. Superior surface of rib 1

2. Elevates rib 1 (SB and rates neck unilaterally, flexes neck bilaterally)

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6
Q

Middle Scalene

  1. Insertion
  2. Action
A
  1. Superior surface of rib 1

2. Elevates rib 1 (lateral flexion of neck)

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7
Q

Posterior Scalene

  1. Insertion
  2. Action
A
  1. 2nd rib

2. Elevates 2nd rib (lateral flexion of neck)

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8
Q

Pectoralis Minor

  1. Origin
  2. Action
A
  1. Anterior, superior surface of ribs 3-5

2. Stabilizes scapula, drawing it inferiorly and anteriorly

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9
Q

Serratus Anteior

  1. Insertion
  2. Action
A
  1. Superior, lateral surface of ribs 2-8

2. Protracts the scapula

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10
Q

Latissimus dorsi

  1. Origin
  2. Action
A
  1. Lower 4 ribs (and other places)

2. Extends, adducts, medially rotates the humerus

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11
Q

Quadratus Lumborum

  1. Insertion
  2. Action
A
  1. Inferior aspect of rib 12

2. Fixes the 12th rib in inhalation

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12
Q

External Intercostals

  1. Origin
  2. Insertion
  3. Action
A
  1. inferior border of ribs
  2. superior border of ribs
  3. elevate ribs during forced inspiration
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13
Q

Internal/Innermost Intercostals

  1. Origin
  2. Insertion
  3. Action
A
  1. inferior border of ribs
  2. superior border of ribs
  3. depression of ribs
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14
Q

Diaphragm

  1. Origin
  2. Insertion
  3. Action
A
  1. xiphoid process, lower 6 ribs, L1-3
  2. central tendon
  3. descends during inspiration
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15
Q

Where doe the intercostal N, V, and A run?

A

along the costal groove on the inferior side of the rib

*VAN (superior –> inferior)

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16
Q

Which ribs move in the bucket handle motion? pump handle?

A
  1. 1-2, 8-10 (change in transverse diameter)

2. 3-7 (change in A/P diameter)

17
Q

What happens with non-physiologic movement?

A

ribs become sublimed anteriorly or posteriorly, or one or more ribs lose the usual plasticity and become restricted in a deformed state

*due to trauma

18
Q

What happens with torsional movement when T5 is rotated left on T6?

A

When T5 is rotated left on T6…

  1. Left 6th rib
    a. posterior aspect turns externally
    b. anterior extremity more flat with its inferior border sharp
  2. Right 6th rib
    a. poster aspect rib turns internally
    b. anterior extremity having its superior margin accentuated

*due to rotation of the thoracic spine

19
Q

What is an inhalation SD? exhalation SD?

A
  1. rib is held in position of inhalation (can’t fully exhale)
  2. rib is held in position of exhalation (can’t fully inhale)
20
Q

What is the key rib?

A

the rib that maintains a group of ribs in dysfunction motion

*should be treated first

21
Q

What does BITE stand for?

A

Bottom Inhalation - Top Exhalation

*tells you what rib will be in the “key rib”

22
Q

Synonyms for “Inhalation Dysfunction”

A
  • inhaled
  • inspired
  • moves inhaled
  • symmetrical in inhalation
  • doesnt move in exhalation
  • elevated rib
  • exhalation restriction
  • restricted in exhalation
23
Q

Synonyms for “Exhalation Dysfunction”

A
  • exhaled
  • expired
  • moves exhaled
  • symmetrical in exhalation
  • doesn’t move in inhalation
  • depressed rib
  • inhalation restriction
  • restricted in inhalation

*OSII (39 decks)

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