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Anatomy 1 > Osteology of the Thorax > Flashcards

Osteology of the Thorax Flashcards

1
Q

What is the joint between the vertebral body and head of the rib called?

A

Costovertebral joint

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2
Q

What is the joint between the transverse process of the vertebra and tubercles of the rib called?

A

Costotransverse joint

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3
Q

What is the joint between the distal end of the rib and the costal cartilage called?

A

Costochondral joint

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4
Q

What is the joint between the costal cartilage and sternum called?

A

Sternocostal joint

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5
Q

What type of joint are the costovertebral joints?

A

Synovial

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6
Q

What type of joint is a costochondral joint?

A

Synchondrosis

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7
Q

What type of joint is a sternocostal joint?

A

Synovial

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8
Q

Explain how the first 7 ribs articulate to facets on the vertebrae and how thoracic vertebrae articulate with each other

A

· Head of rib articulates with demifacet of superior and corresponding vertebrae
· Tubercle of rib articulates with facet on transverse process of corresponding vertebrae
· Superior and inferior articular facets of vertebrae articulate
· Intervertebral disc sits between two vertebral bodies

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9
Q

What 2 ligaments are found at costovertebral joints?

A
  1. Radiate ligament

2. Intra-articular ligament of head of the rib

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10
Q

What is the function of the radiate ligament?

A

Connects the head of the rib with the side of the bodies of two vertebrae

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11
Q

What is the function of the intra-articular ligament of head of the rib?

A

Connects the head of the rib and adjacent intervertebral disc

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12
Q

What 2 ligaments are found at sternocostal joints?

A
  1. Radiate sternocostal ligament

2. Intra-articular sternocostal ligament

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13
Q

What is the function of the radiate sternocostal ligament?

A

Connects the sternal end of the costal cartilage with the anterior part of the sternum

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14
Q

What is the function of the intra-articular sternocostal ligament?

A

Connect the tip of the 2nd costal cartilage and junction between manubrium and body of the sternum

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15
Q

What is the function of the costotransverse ligament

A

Short fibrous band which connects neck of the rib with anterior surface of transverse process of corresponding vertebra

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16
Q

What 2 joints are found between vertebrae?

A
  1. Intervertebral joint

2. Zygapophyseal joint

17
Q

Describe an intervertebral joint

A

· Symphysis

· Composed of annulus fibrosis and nucleus pulposus

18
Q

Describe a zygapophyseal joint

A

· Synovial Plane joint

· Between superior and inferior articular process of neighbouring vertebrae

19
Q

Why are only the first 7 ribs considered true ribs?

A

They are attached to the sternum

20
Q

What is the significance of the sternal angle?

A

The attachment of the 2nd rib occurs at this level

21
Q

What 5 ribs are atypical?

A

1, 2, 10, 11, 12

22
Q

Describe the atypical features of the first rib

A

· Shorter
· Only one facet
· Has two groves on superior surface for subclavian vessels

23
Q

Describe the atypical features of the second rib

A

· Shorter and flatter than typical ribs

· Roughened area on upper surface, where serratus anterior is attached

24
Q

Describe the atypical features of the tenth rib

A

· Only has one facet on its head

25
Q

Describe the atypical features of the eleventh and twelfth ribs

A

· No neck or tubercles

· Only has one facet on its head

26
Q

What thoracic vertebrae are considered typical?

A

2-8

27
Q

What are the features of typical vertebrae?

A

· 2 demifacets on body
· Facet on transverse process
· Long oblique spine
· Small and circular vertebral foramen

28
Q

What makes the 1st thoracic vertebra atypical?

A

· Full facet for first rib

29
Q

What makes the 9th thoracic vertebra atypical?

A

· Lacks inferior demifacet

30
Q

What makes the 10th thoracic vertebra atypical?

A

· Single facet

31
Q

What makes the 11th and 12th thoracic vertebrae atypical?

A

· Single facet

· No costal facet

32
Q

What 3 things make up the thoracic inlet?

A
  1. First rib
  2. 1st thoracic vertebra
  3. Jugular notch of manubrium
33
Q

What 4 things make up the thoracic outlet?

A
  1. Xiphoid Process
  2. Ribs 11 and 12 posterolaterally
  3. Ribs 7-10 anterolaterally
  4. 12th thoracic vertebra

Anatomy 1 (20 decks)

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