Thorax Flashcards

0
Q

During inspiration the diaphragm ?

A

Descends… Compressing the abdominal viscera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

During passive expiration…

A

The diaphragm, intercostal muscles, etc relax…decreasing intrathoracic volume and increasing intrathoracic pressure, expelling air from the lungs…the stretched elastic tissue of the lungs recoils, expelling most of the air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

During expiration, the vertical diameters return to neutral position as the elastic recoil of the lungs produces …

A

Subatmospheric pressure in the pleural cavities, between the lungs and the thoracic wall.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Movement of the upper ribs at the costovertebral joints, about an axis passing through the neck of the ribs, causes the anterior ends of ribs and sternum, especially it’s inferior end, to rise…this is called?

A

Pump-handle movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The increase in the transverse dimension of the thorax when the intercostal muscles are contracted is called ?

A

Bucket-handle movement

Most visible in the inferior costals, the lateral part.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Mammary glands are firmly attached to the dermis of the overlying skin by the…

A

Suspensory ligaments

These ligs are particularly well developed in the superior part of breast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Most lymph (>75% ), especially from the lateral quadrants of the breast, drains into

A

Axillary lymph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Lymph from medial breast quadrants drains to the …

A

Parasternal l.n.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Lymph from inferior boob quadrant may pass deeply to …

A

Abdominal lymph nodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Anterior rami of t12 nerves, inferior to the twelfth ribs, form….

A

The subcostal nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Posterior intercostal and subcostal arteries derived from?

A

Thoracic aorta

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Internal thoracic and supreme intercostal arteries derived from…

A

The subclavian artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Superior and lateral thoracic arteries derived from..

A

Axillary artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Internal thoracic artery divides into?

A

Superior epigastric and musculophrenic arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Thoracic cavity 3 compartments

A

Two pulmonary cavities, and one central mediastinum( contains heart, vessels, esophagus, thymus, trachea etc)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Pleural sac consists of two plaura…

A

Visceral- covers lungs and adherents to all its surfaces

Parietal pleura- lines the pulmonary cavities, adhering to the thoracic wall, the mediastinum, and the diaphragm

16
Q

Pleural cavity

A

The potential space between the two pleura- contains serous pleural fluid

17
Q

Parietal pleura consists of four parts

A

Costal, cervical, mediastinal, and diaphragmatic parts

18
Q

Lungs function

A

Oxygenate blood by bringing inspired air into close relation with the venous blood ini the pulmonary capillaries

They are elastic and recoil to 1/3 of their size

19
Q

The cardiac notch primarily indents the anteroinferior aspect of the _____ lobe of the left lung, creating a tongue like process called

A

Superior lobe…

Lingula

20
Q

Three lobes? Two fissures? Three surfaces ? Three borders? Of lungs

A

Superior, middle, inferior lobes( right lung)
Transverse and oblique fissure(right lung)
Costal, mediastinal, and diaphragmatic surfaces
Anterior, inferior, and posterior borders

21
Q

The root of the lung connects…

A

The lung with the heart and trachea