Thorax, Topnotch

Question 1

Xiphoid process becomes bony by

Answer 1

40 years

Question 2

Xiphisternal junction lies at what vertebral level

Answer 2

T9

Question 3

Level: Azygous vein drains into SVC

Answer 3

Sternal angle of Louis

Question 4

Ribs #

Answer 4

24 (12 pairs)

Question 5

Rib, head: Articular facets are separated by

Answer 5

Crest

Question 6

Rib, neck: Located between

Answer 6

1) Head

2) Tubercle

Question 7

Rib, tubercle: Non-articular part is attached to

Answer 7

Lateral costotransverse ligament

Question 8

Typical ribs, #

Answer 8

3-9

Question 9

Atypical ribs, #

Answer 9

1-2, 10-12

Question 10

Rib: Broadest and most curved

Answer 10

Rib 1

Question 11

Rib: Has tuberosity for serratus anterior

Answer 11

Rib 2

Question 12

Rib: No neck or tubercle

Answer 12

Rib 11-12

Question 13

Rib: Weakest point

Answer 13

Just anterior to the angle

Question 14

Rib: Rarely fractured

Answer 14

1

Question 15

Rib: Most commonly fractured

Answer 15

7-10

Question 16

Costal margin: Formed by

Answer 16

Medial ends of 7th-10th costal cartilages

Question 17

Costal margin: Right and left margin form

Answer 17

Costal arch

Question 18

Type of joint: Costosternal angle of rib 1

Answer 18

Cartilaginous

Question 19

Where thoracic cavity communicates with root of neck

Answer 19

Thoracic outlet

Question 20

Thoracic outlet: Anterior boundary

Answer 20

Suprasternal notch

Question 21

Thoracic outlet: Lateral boundary

Answer 21

Medial border of first rib

Question 22

Thoracic outlet: Posterior boundary

Answer 22

T1

Question 23

Inferior thoracic aperture: Anterior boundary

Answer 23

Xiphisternal joint

Question 24

Inferior thoracic aperture: Anterolateral boundary

Answer 24

Costal margin

Question 25

Inferior thoracic aperture: Posterolateral boundary

Answer 25

Rib 11-12

Question 26

Inferior thoracic aperture: Posterior boundary

Answer 26

T12

Question 27

Part of brachial plexus compressed in thoracic outlet syndrome

Answer 27

Lower trunk

Question 28

Compression of lower trunk in thoracic outlet syndrome produces

Answer 28

1) Pain down the medial forearm and hand | 2) Wasting of hand muscles

Question 29

Muscles of thoracic wall, #

Answer 29

8

Question 30

Thorax: Transverse diameter produces what inspiratory movement

Answer 30

Bucket handle

Question 31

Thorax: AP diameter produces what inspiratory movement

Answer 31

Pump handle

Question 32

Effect on thoracic diameters: Inspiration

Answer 32

Increases all diameters

Question 33

Effect on thoracic diameters: Expiration

Answer 33

Decreases all diameters

Question 34

Muscles that depress the ribs

Answer 34

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

Question 35

Muscles of the thoracic wall

Answer 35

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)

Question 36

Common insertion of thoracic wall muscles

Answer 36

Ribs

Question 37

Thoracic wall muscles: Originate from vertebra

Answer 37

1) Serratus posterior superior and inferior | 2) Levator costarum

Question 38

Thoracic wall muscles: Originate from sternum

Answer 38

Transversus thoracis

Question 39

Mediastinum, boundaries: Superior

Answer 39

Root of neck

Question 40

Mediastinum, boundaries: Inferior

Answer 40

Diaphragm

Question 41

Mediastinum, boundaries: Anterior

Answer 41

1) Sternum 2) Costal cartilages 3) Xiphisternal joint

Question 42

Mediastinum, boundaries: Posterior

Answer 42

Bodies of T1-12

Question 43

Mediastinum, contents: Superior, #

Answer 43

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

Question 44

Mediastinum, contents: Anterior, #

Answer 44

3 1) LN 2) Thymus 3) Sternopericardial ligament

Question 45

Mediastinum, contents: Middle

Answer 45

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

Question 46

Mediastinum, contents: Posterior

Answer 46

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