Powerpoint 2 Flashcards

1
Q

What are the four regions of the mediastinum?

A
  • superior
  • inferior (anterior, middle, posterior)
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2
Q

The _____ is the breast bone at midline of chest.

A

Sternum

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3
Q

What is the vital organ of respiration?

A

Lungs

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4
Q

Circulation of thorax

A

Esophagus
Branchi
Pericardium
Lungs
Thoracic walls

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5
Q

The ____ is subdivisions of the thoracic cavity.

A

Mediastinum

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6
Q

The sternum consists of which three sections?

A
  1. manubrium (top portion that connects to clavicle to form suprasternal notch)
  2. body (larger middle section)
  3. xiphoid process (small bottom portion)
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7
Q

What is the purpose of the thorax?

A

Protect vital organs within thoracic cavity and prevent collapse of the thorax during inspiration.

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8
Q

What is the main respiratory muscle?

A

Diaphragm

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9
Q

____ aids in the exchange of gases.

A

Trachea

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10
Q

The lungs are surrounded by a ____ ____ with fluid in between.

A

Pleural sac

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11
Q

How many lobes does the right lung have?

A

Three lobes (superior, middle, inferior)

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12
Q

How many lobes does the left lung have?

A

Two lobes (superior and inferior)

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13
Q

Drainage of the thoracic cavity is primarily from the ____ ____ which drains into the superior vena cava.

A

Azygos vein

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