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Anatomy 3401 - Part 2 > Thorax 1 and 2 > Flashcards

Thorax 1 and 2 Flashcards

1
Q

Boney structures of the container

A 
Verterbral column 
Ribs
Manubrium
Sternum
Ziphoid Process (T10)
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2
Q

Vertebral Level of Zyphoid Process?

A

T10

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3
Q

Superior thoracic aperture

  • bounded by?
  • access to?
A

1st thoracic vert
1st pair of ribs / costal cartilages
manubrium
access to- head neck and upper limb

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4
Q

Inferior thoracic aperture
bounded by?
access to?

A 
T12
Ribs 11 and 12
Costal margin (7-10)
Ziphisternal Joint
Diaphragm Access to: abdomen
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5
Q

Intercostal muscles

A 
external - (down and anterior)
internal - (down and posterior)
innermost - (down and posterior)
transversus thoracis 
subcostal
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6
Q

intercostal muscles attached to the sternum and ziphoid process?

A

Transversus Thoracis Muscles

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7
Q

subcostal muscles

  • origin/insertion
  • direction
A

angle of the ribs

2-3 ribs ‘above’

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8
Q

Subdivisions of the thoracic cavity

A

1 mediastinum

2 pleural cavity

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9
Q

Location of the ‘sternal angle’ (angle of louis)

  • rib
  • vertebral
A

Level of 2nd costal cartilage

T4-5

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10
Q

Veins involved in the return of peripheral blood in superior ms?

A

Internal jugular and Subclavian
Brachiocephalic vein
Superior Vena Cava

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11
Q

Structures at the sternal angle? (T4-5)

A

Ascending/Descending junction from Arch
Bifurcation of Trachea
Bifurcation of Pulmonary Trunk

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12
Q

Origination of the internal thoracic artery

A

Subclavian artery

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13
Q

Internal thoracic artery branches

- supplies?

A 
Anterior intercostal arteries (intercostals)
Pericardiacophrenic artery (pericardium)
Musculophrenic artery (diaphragm)
Superior Epigastric artery (abdominal wall - through dia)
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14
Q

Musculophrenic and Superior epigastric arteries

travels

A

Musculo - low and lateral to diaphragm

Superior - more medial

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15
Q

Posterior intercostal arteries

- origination

A

arise from descending aorta

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16
Q

Anterior intercostal arteries

- origination

A

arise from Internal thoracic arteries

17
Q

Last intercostal artery?

A

subcostal artery

- below T12

18
Q

Arteries arising from descending aorta?

A

Bronchial Arteries
Esophageal Arteries
Posterior intercostal Arteries

19
Q

Arteries arising from ascending aorta?

A

Coronary Arteries

20
Q

Arteries supplying intercostal muscles

A

anterior intercostal arteries
- internal thoracic
posterior intercostal arteries
- descending aorta

21
Q

Blood from intercostal arteries (posterior) to SVC?

- where?

A

Left - accessory hemiazygus vein (superior) or hemiazygus vein (inferior) to Azygos Vein to SVC

Right - Azygus Vein to SVC

at “sternal angle”

22
Q

Intercostal Nerves

  • origination
  • branches
A

Anterior ramus of spinal nerves

  • lateral cutaneous branch
  • connects with anterior cutaneous branch of intercostal nerves
23
Q

VAN

A

veins arteries nerves

Anatomy 3401 - Part 2 (11 decks)

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