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ANA 2020 > Thorax > Flashcards

Thorax Flashcards

1
Q

Arrangement of structures BELOW the ribs

A

VAN

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2
Q

Superior margin od manubrium

A

Jugular notch

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3
Q

Also called manubriosternal joint

A

Sternal angle of Louis

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4
Q

Located at level of sternal angle of Louis

A
  1. Second rib articulation to sternum
  2. Begin of aortic arch
  3. End of aortic arch
  4. Bifurcation of trachea
  5. Leve of T4-T5
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5
Q

When xyphoid process becomes bony

A

40 yrs old

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6
Q

True ribs

A

1st-7th

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7
Q

False ribs/ vertebrochondral

A

8th-12th

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8
Q

Floating ribs

A

11 and 12

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9
Q

Typical ribs

A

3-9

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10
Q

Head of the rib articulates to what part of vertebrae?

A

Vertebral body immediately above

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11
Q

Where does the tubercle or the ribs articulate?

A

Transverse process of the same numerical rib

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12
Q

Atypical ribs

A

1,2,10,11,12

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13
Q

What happens anterior of the first rib?

A

Subclavian vein crosses the rib

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14
Q

What happens post. Of the first rib?

A

Subclavian artery and lower trunk of brachial plexus cross rib

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15
Q

Part lacking in ribs 11-12

A

Neck and tubercle

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16
Q

Weakest part of the rib

A

Anterior to the angle

17
Q

Most commonly fractured ribs

18
Q

Lesion to the lower trunk of brachial plexus produces pain down the medial forearm (ulnar nerve involved)

A

Thoracic outlet obstruction

19
Q

Movement of diaphragm on inspiration or expiration

A

Ins- down

Exp- up

20
Q

Muscles depress ribs

A

Serratus post inf
Int intercostal
Transverse thoracis

21
Q

Blood supply of posterior intercostal

A

First 2- superior intercostal from costocervical trunk

Remaining- descending aorta

22
Q

Blood supply of anterior intercostal:

A

Upper 6- internal thoracic artery

Ramining- muschilophrenic

23
Q

Boarders of mediastinum

A

Superior- thoracic inlet
Inferior- diaphragm
Anterior- sternum and costal cartilages
Posterior- bodies of thoracic vert

24
Q

Contents of superior mediastinum

A 
Brachiocephalic
AA
trachea
Svc
Thoracic duct
Esophagus 
Vagus and phrenic nerves
Thymus
25
Q

Contents of anterior mediastinum

A

Thymus
Anterior mediastinal Ln
Internal mammarey vessels

26
Q

Middle mediastinum contents

A 
Heart
Ascending and transverse aortic arches
Vena cava
Brachiocephalic vessles
Pulmo vessles
Phrenic nerve
Trachea and main bronchus
27
Q

Posterior mediastinum contents

A 
Descending aorta 
Esophagus
Thoracic duct
Azygous and hemi-azygoue veins
Posterior mediastinum LN
vagus nerve
28
Q

Organs absent in Di George

A

Thymus and parathyroid

ANA 2020 (16 decks)

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