Introduction to the regional anatomy of the thorax Flashcards

1
Q

what are the subdivisions of the thoracic region?

A

-Pleural cavity
-Mediastinum

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2
Q

what are parts of the cardiovascular system in the thorax?

A

-Superior vena cava
-Ascending aorta
-Pulmonary trunk

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3
Q

what are parts of the respiratory system in the thorax?

A

Lung
Primary bronchi

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4
Q

what are the parts of the GI tract in the thorax?

A

Oesophagus

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5
Q

what are the parts of the musculoskeletal system in the thorax?

A

Vertebra

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6
Q

where is the trunk of the thorax?

A

Between the neck and abdomen

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7
Q

what are the two thoracic cavity apertures?

A

Superior thoracic aperture
Inferior thoracic aperture

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8
Q

what makes up the superior thoracic aperture?

A

Manubruim
First rib
First thoracic vertebra

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9
Q

what makes up the inferior thoracic aperture?

A

Xiphoid process (or the sternum)
Subcostal arch
Rib 11/12
12th thoracic vertebra
Diaphragm

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10
Q

what is the function of the diaphragm?

A

It is the primary muscle of respiration

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11
Q

what is the lateral wall of the thoracic cavity?

A

Ribs
Muscles (intercostals)

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12
Q

what is the posterior wall of the thoracic cavity?

A

Thoracic verebrae
Intervertebral discs
Muscles (intercostals)

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13
Q

what is the anterior wall of the thoracic cavity?

A

Sternum
Ribs
intercostal muscles

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14
Q

what are the two lateral pleural cavities?

A

the lungs have their own pleural cavities

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15
Q

where is the mediastinum located?

A

Centrally located
Medial spetum/partition
Separates pleural sacs

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16
Q

what are the pleura of the lung?

A

Parietal pleura
Visceral Pleura
Pleural cavity

17
Q

what are the features of the lung pleura?

A

Thin, double layer
Low friction

18
Q

what are the features of the parietal pleura?

A

“outside”
- Endothoracic fascia (hooks onto the chest wall)
- Thorax, mediastinum

19
Q

what are the features of the visceral pleura?

A

“inside”
Lung surface

20
Q

what are the features of the pleural cavity?

A

-Pleural fluid

21
Q

what are the layers of the lung from superficial to deep?

A

Thoracic wall
Parietal pleura
Pleural cavity
Visceral pleura
Lung Tissue

22
Q

what can cause damage to the pleura?

A

Spontaneous, trauma, inflammation, smoking, pulmonary disease

23
Q

what are the symptoms of pleura damage?

A

Pain
Shortness of breath
Cardiorespiratory collapse

24
Q

what is within the superior subdivision of the mediastinum?

A
  • Thymus, thoracic duct
  • Internal thoracic blood vessels, great vessles of the heart, ligamentum arteriosum
  • Vagus n, phrenic n, recurrent laryngeal n, sympathetic trunk
  • Trachea
  • Esophagus
25
Q

what is within the inferior subdivision of the mediastinum?

A

Anterior- lymph nodes, vessels
Middle- pericardium and heart
Posterior- esophagus, vagus n, thoracic aorta

26
Q

what are the general functions of the thoracic regions?

A
  1. Respiration
  2. Protection of vital organs
  3. Passage of structures
27
Q

how does the thoracic region protect vital organs?

A

Posterior thoracic wall protects some abdominal organs