Rib DSA Flashcards

1
Q

What does the head of the rib articulate with?

A

The inferior costal facet of the vertebra above and the superior costal facet of its own vertebra

(Only ribs 2-9)

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2
Q

What does the tubercle of the rib articulate with?

A

The transverse process of the corresponding vertebra

(Only ribs 1-10)

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3
Q

Which ribs only articulate with their own vertebra and not the one above?

A

Ribs 1, 10, 11, 12

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4
Q

Which ribs do not have tubercles and cannot articulate with transverse processes of the corresponding vertebrae?

A

Ribs 11, 12

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5
Q

Which ribs are atypical?

A

Ribs 1, 2, (maybe 10), 11, and 12

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6
Q

Which ribs are typical?

A

Ribs 3-9

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7
Q

Which ribs are true ribs?

A

Ribs 1-7

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8
Q

Which ribs are false ribs?

A

Ribs 8-12

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9
Q

What are the floating ribs?

A

Ribs 11-12

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10
Q

What muscles insert onto the first rib and are responsible for elevating it?

A

Anterior Scalene

Middle Scalene

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11
Q

What muscle inserts onto the second rib and elevates it?

A

Posterior scalene

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12
Q

What is the origin and insertion of the Pectoralis Minor M.?

A

Anterior/superior surface of ribs 3-5 to the coracoid process of the scapula

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13
Q

What is the action of the pectoralis minor m.?

A

Stabilizes the scapula, drawing it inferiorly and anteriorly

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14
Q

What is the origin and insertion of the serratus anterior M.?

A

Anterior surface of the medial border of scapula to the superior lateral surface of ribs 2-8

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15
Q

What is the action of the serratus anterior m.?

A

Protracts the scapula

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16
Q

What is the origin and insertion of the Latissimus dorsi m.?

A

Spinous processes of T7-S3 and lower 4 ribs to the intertubercular/bicipital groove of the humerus

17
Q

What is the origin and insertion of the Quadratus lumborum?

A

Iliac crest and iliolumbar ligament to the inferior aspect of rib 12, TPs of L1-4

18
Q

What is the action of the Quadratus Lumborum M.?

A

Fixes the 12th rib in inhalation

Extends and laterally flexes the vertebral column

19
Q

What is the origin and insertion of the external intercostal ms.?

A

Spine to costal cartilage

20
Q

What is the origin and insertion of the Internal intercostal ms.?

A

Rib angle to the sternum

21
Q

What is the origin and insertion of the innermost intercostal ms.?

A

Rib angle to costal cartilage

22
Q

What is the origin and insertion of the thoracic diaphragm?

A

Xiphoid process, lower 6 ribs, L1-3 to the Central tendon of the diaphragm

23
Q

Where are the intercostal vessels found and how are they oriented?

A

Located between internal and innermost intercostal ms. in VAN orientation (sup to inf)

24
Q

Which ribs have bucket handle motion?

A

Ribs 1-2, 8-10

25
Q

Which ribs have pump handle motion?

A

Ribs 3-7

26
Q

What motion is performed by Ribs 11-12 during respiration?

A

Caliper

Inhalation - down and posterior

Exhalation - up and anterior

27
Q

What are the 5 motions of the ribs?

A

Bucket Handle

Pump Handle

Caliper

Torsional

Non-physiologic

28
Q

What occurs during torsional movement of the ribs?

A

Respiration is restricted on the side the vertebra is rotated towards because ribs have been flattened

29
Q

What causes non-physiologic motion of the ribs?

A

Trauma/repetitive microtrauma

Rib becomes subluxed anterior/posterior or laterally compressed

30
Q

Typical causes of rib dysfunction (There’s a lot)

A

Thoracic scoliosis/kyphosis

Rib cage asymmetry (pectus excavatum/carinatum)

Osteoporosis/osteoarthritis

Increased chest wall diameter associated with illness such as COPD

Abnormal tension in cervical, rotator cuff, or shoulder girdle musculature

Lifestyle (slumping and depression)