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Anatomy > Thorax, Topnotch > Flashcards

Thorax, Topnotch Flashcards

1
Q

Xiphoid process becomes bony by

A

40 years

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2
Q

Xiphisternal junction lies at what vertebral level

A

T9

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3
Q

Level: Azygous vein drains into SVC

A

Sternal angle of Louis

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4
Q

Ribs #

A

24 (12 pairs)

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5
Q

Rib, head: Articular facets are separated by

A

Crest

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6
Q

Rib, neck: Located between

A

1) Head

2) Tubercle

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7
Q

Rib, tubercle: Non-articular part is attached to

A

Lateral costotransverse ligament

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8
Q

Typical ribs, #

A

3-9

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9
Q

Atypical ribs, #

A

1-2, 10-12

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10
Q

Rib: Broadest and most curved

A

Rib 1

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11
Q

Rib: Has tuberosity for serratus anterior

A

Rib 2

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12
Q

Rib: No neck or tubercle

A

Rib 11-12

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13
Q

Rib: Weakest point

A

Just anterior to the angle

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14
Q

Rib: Rarely fractured

A

1

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15
Q

Rib: Most commonly fractured

A

7-10

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16
Q

Costal margin: Formed by

A

Medial ends of 7th-10th costal cartilages

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17
Q

Costal margin: Right and left margin form

A

Costal arch

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18
Q

Type of joint: Costosternal angle of rib 1

A

Cartilaginous

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19
Q

Where thoracic cavity communicates with root of neck

A

Thoracic outlet

20
Q

Thoracic outlet: Anterior boundary

A

Suprasternal notch

21
Q

Thoracic outlet: Lateral boundary

A

Medial border of first rib

22
Q

Thoracic outlet: Posterior boundary

A

T1

23
Q

Inferior thoracic aperture: Anterior boundary

A

Xiphisternal joint

24
Q

Inferior thoracic aperture: Anterolateral boundary

A

Costal margin

25
Q

Inferior thoracic aperture: Posterolateral boundary

A

Rib 11-12

26
Q

Inferior thoracic aperture: Posterior boundary

A

T12

27
Q

Part of brachial plexus compressed in thoracic outlet syndrome

A

Lower trunk

28
Q

Compression of lower trunk in thoracic outlet syndrome produces

A

1) Pain down the medial forearm and hand

2) Wasting of hand muscles

29
Q

Muscles of thoracic wall, #

A

8

30
Q

Thorax: Transverse diameter produces what inspiratory movement

A

Bucket handle

31
Q

Thorax: AP diameter produces what inspiratory movement

A

Pump handle

32
Q

Effect on thoracic diameters: Inspiration

A

Increases all diameters

33
Q

Effect on thoracic diameters: Expiration

A

Decreases all diameters

34
Q

Muscles that depress the ribs

A

1) Serratus posterior
2) Internal intercostals
3) Transverus thoracis

35
Q

Muscles of the thoracic wall

A

1) Serratus posterior superior and inferior (2)
2) External, internal, and innermost intercostals (3)
3) Levator costarum (1)
4) Subcostal (1)
5) Transversus thoracis (1)

36
Q

Common insertion of thoracic wall muscles

A

Ribs

37
Q

Thoracic wall muscles: Originate from vertebra

A

1) Serratus posterior superior and inferior

2) Levator costarum

38
Q

Thoracic wall muscles: Originate from sternum

A

Transversus thoracis

39
Q

Mediastinum, boundaries: Superior

A

Root of neck

40
Q

Mediastinum, boundaries: Inferior

A

Diaphragm

41
Q

Mediastinum, boundaries: Anterior

A

1) Sternum
2) Costal cartilages
3) Xiphisternal joint

42
Q

Mediastinum, boundaries: Posterior

A

Bodies of T1-12

43
Q

Mediastinum, contents: Superior, #

A

13

1) LN
2) Trachea
3) Esophagus
4) Thoracic duct
5) Aortic arch
6) Brachiocephalic artery and veins
7) Left common carotid
8) Left subclavian
9) SVC
10) Thymus
11) Vagus nerve
12) Phrenic nerve
13) SY trunk

44
Q

Mediastinum, contents: Anterior, #

A

3

1) LN
2) Thymus
3) Sternopericardial ligament

45
Q

Mediastinum, contents: Middle

A

6

1) Heart
2) Pericardium
3) Root of great vessels
4) LN
5) Phrenic nerve
6) Main bronchi

46
Q

Mediastinum, contents: Posterior

A

8

1) LN
2) Vagus
3) SY trunk
4) Thoracic duct
5) Esophagus
6) Azygous vein
7) Hemiazygous vein
8) Descending thoracic aorta

Anatomy (20 decks)

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