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Anatomy BenJ > Thorax 1 > Flashcards

Thorax 1 Flashcards

1
Q

Where does the clavicle articulate with the manubrium?

A

At the manubriums superolateral angles (sternoclavicular joint)

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2
Q

What kind of joint is the sternoclavicular?

A

Synovial Plane

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3
Q

At what vertebral level is the xiphoid process?

A

T9 (T6 dermatome)

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4
Q

With what does the second costal cartilage articulate?

A

The manubrium and body of the sternum (i.e. at the sternal angle)

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5
Q

What are the features of a typical rib?

A

Rounded superior border vs sharp inferior border
Head (for articulating with vertebrae) then neck then tubercle
Angle
Costal groove on inner surface
Pit for costal cartilage

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6
Q

With what vertebrae does the head articulate

A

With the bodies of the same number vertebra and the one above. (so rib 7 with vertebrae 6 & 7)

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7
Q

With what does the rib tubercle articulate?

A

The transverse process of the same numbered vertebra

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8
Q

What is int he costal grooves?

A

The intercostal neurovascular bundle (Nerve and vessels)

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9
Q

Which ribs are true ribs and what are they called?

A

Vertebrosternal Ribs 1-7

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10
Q

Which ribs are false ribs and what are they called?

A

Vertebrochondral Ribs 8-10

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11
Q

Which ribs are floating ribs?

A

Vertebral Ribs 11-12

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12
Q

Whats different about the first rib?

A

Its wider/flatter and articulates with just T1 vertebra.
Presecne of posterior and anterior grooves
Presence of scalene tubercle seperating the grooves

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13
Q

What passes through the posterior and anterior grooves on the first rib?

A 
Anterior = Subclavian Vein
Posterior = Subclavian Artery & lowest trunk of brachial plexus
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14
Q

What attaches to the scalene tubercle?

A

The anterior scalene muscle (a respiratory accessory)

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15
Q

What are the facets which articulate witht he rib head called?

A

Demi-facets

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16
Q

What is the facet which articulate with the rib tubercle called?

A

Articular facet on transverse process

17
Q

Which bones form the thoracic inlet?

A

T1 vertebra
1st rib
Manubrium

18
Q

What bones form thoracic outlet?

A

T12 vertebra
11/12th ribs
Costal cartilage of ribs 7-10
Xiphisternum

19
Q

What do we call the angle formed by the ribs and costal cartilage of ribs 7-10?

A

The costal margin or subcostal angle

20
Q

What muscle is primarily used for breathing in a newborn?

A

Diaphragm

21
Q

What are the 3 layers of intercostal muscles and how are they arranged?

A 
External = anteroinferior
Internal = Inferioposterior
Innermost = inferioposterior
22
Q

Between what layers of intercostal muscles is the intercostal nuerovascular bundle?

A

internal and innnermost

23
Q

What superior to inferior arrange the vessels in the intercostal neurovascular bundle:

A

Vein
Artery
Nerve

24
Q

What does the external intercostal membrane (tendon) connect?

A

The external intercostal muscle to the sternum

25
Q

Waht does the internal intercostal membrane connect?

A

Internal intercostal muscle to thoracic vertebrae

26
Q

What connects the innnermost intercostal muscles to the vertbrae and sternum?

A

Innermost intercostal -> Transversus thoracis -> Sternum

Innermost intercostal -> Subcostalis -> Vertebrae

27
Q

Where are the collateral branches of the intercostal vessels found ?

A

Just above the rib

28
Q

Where is a chest drain normally placed?

A

In the 5th intercostal space in mix-axillary lien

29
Q

What layers of tissue seperate the lungs from the surface?

A 
Skin
Superfical Fascia
Deep Fascia
External -> Internal -> Innermost intercostal muscles
Parietal Pleura
Pleural Cavity
Visceral Pleura
30
Q

What dermatomes lie around the sternal angle?

A

C4 above and T2 on it

31
Q

Where are the tracheobronchial lymph nodes found?

A

At bifurcation of trachea

Anatomy BenJ (8 decks)

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