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GENERAL ANATOMY: PRELIMS > PRELIMS: THORAX - REGIONAL ANATOMY (MEDIASTINUM) > Flashcards

PRELIMS: THORAX - REGIONAL ANATOMY (MEDIASTINUM) Flashcards

1
Q

A broad central partition that separates the 2 laterally placed pleural cavities.

A

MEDIASTINUM

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2
Q

Extensions of mediastinum

A

~STERNUM TO THE BODIES OF THE VERTEBRAE

~SUPERIOR THORACIC APERTURE TO DIAPHRAGM

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3
Q

Structures contained by the mediastinum

A 
~THYMUS GLAND
~PERICARDIAL SAC
~HEART
~TRACHEA
~MAJOR ARTERIES AND VEINS
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4
Q

Functions of mediastinum

A

SERVES AS A PASSAGEWAY FOR STRUCTURES SUCH AS THE ESOPHAGUS, THORACIC DUCT, AND VARIOUS COMPONENTS OF THE NERVOUS SYSTEM AS THEY TRAVERSE THE THORAXC ON THEIR WAY TO THE ABDOMEN

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5
Q

TRUE OR FALSE:

For organizational purposes, the mediastinum is subdivided into several smaller regions.

A

TRUE

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6
Q

The plane that extends from the sternal angle to the intervertebral disc between vertebrae T4 and T5

A

TRANSVERSE PLANE

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7
Q

The transverse plane separates the mediastinum into what?

A

~SUPERIOR MEDIASTINUM

~INFERIOR MEDIASTINUM

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8
Q

The inferior mediastinum is further partitioned into what?

A

~ANTERIOR MEDIASTINUM
~MIDDLE MEDIASTINUM
~POSTERIOR MEDIASTINUM

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9
Q

What partitions the inferior mediastinum?

A

PERICARDIAL SAC

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10
Q

The area anterior to the pericardial sac and posterior to the body of the sternum

A

ANTERIOR MEDIASTINUM

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11
Q

The region posterior to the pericardial sac and the diaphragm and anterior to the bodies of the vertebrae

A

POSTERIORMEDIASTINUM

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12
Q

The area in the middle, which includes the pericardial sac and its contents.
It is centrally located in the thoracic cavity

A

MIDDLE MEDIASTINUM

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13
Q

Superior boundary of anterior mediastinum

A

A TRANSVERSE PLANE PASSING FROM THE STERNAL ANGLE TO THE INTERVERTEBRAL DISC BETWEENVERTEBRA T4 AND T5, SEPARATING IT FROM THE SUPERIOR MEDIASTINUM

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14
Q

Inferior boundary of anterior mediastinum

A

DIAPHRAGM

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15
Q

Lateral boundary of anterior mediastinum

A

MEDIASTINAL PART OF PARIETAL PLEURA ON BOTH SIDE

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16
Q

What is the major structure in the anterior mediastinum

A

INFERIOR EXTENSION OF THYMUS GLAND

17
Q

Structures also present in the anterior mediastinum

A 
~FAT
~CONNECTIVE TISSUE
~LYMPH NODES
~MEDIASTINAL BRANCHES OF INTERNAL THORACIC VESSELS
~STERNOPERICARDIAL LIFGAMENTS
18
Q

TRUE OR FALSE:
The structures on the anterior mediastinum passes from the posterior surface of the body of the sternum to the fibrous pericardium

A

TRUE

19
Q

What are the structures contained in the middle mediastinum?

A 
~PERICARDIUM
~HEART
~ORIGINS OF THE GREAT VESSELS
~NERVES
~SMALLER VESSELS
20
Q

A fibroserous sac surrounding the heart and the roots of the great vessels.

A

PERICARDIUM

21
Q

What are the 2 components of the pericardium?

A

~FIBROUS PERICARDIUM

~SEROUS PERICARDIUM

22
Q

A tough connective tissue outer layer that defines
the boundaries of the middle mediastinum.
A cone shaped bag with its base on the diaphragm and its apex is continuous with the adventitia of the great vessels.

A

FIBROUS PERICARDIUM

23
Q

The thin type of pericardium that is composed of a parietal and visceral layer

A

SEROUS PERICARDIUM

24
Q

The layer of the serous pericardium that lines the inner surface of the fibrous pericardium

A

PARIETAL LAYER OF SEROUS PERICARDIUM

25
Q

The layer of serous pericardium that adheres to the heart and forms its outer covering

A

VISCERAL LAYER OF SEROUS MEMBRANE

26
Q

TRUE OR FALSE:

The parietal and visceral layer of serous pericardium are continuous at the roots of the great vessels

A

TRUE

27
Q

The narrow space created between the 2 layers of serous pericardium that contains a little amount of fluid
It is also a potential space that allows uninhibited movement of the heart

A

PERICARDIAL CAVITY

28
Q

Part of the fibrous pericardium that is attached to the central tendon of the diaphragm on the left side.

A

BASE OF FIBROUS PERICARDIUM

29
Q

The fibrous pericardium is attached anteriorly to the posterior surface of the sternum by what structure?

A

STERNOPERICARDIAL LIGAMENTS

30
Q

TRUE OR FALSE:

The attachments of the fibrous pericardium helps to retain the heart in its position in the thoracic cavity

A

TRUE

31
Q

The structure that limits cardiac distention

A

SAC

GENERAL ANATOMY: PRELIMS (7 decks)

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