Chapter 19- Thorax and Lungs Flashcards Preview

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Flashcards in Chapter 19- Thorax and Lungs Deck (98)
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1

A bony structure with a conical shape, which is narrower at top.

Thoracic Cage

2

Defined by sternum, 12 pairs of ribs, and 12 thoracic vertebrate .

Thoracic cage

3

What ribs are floating ribs with free palpable tips?

ribs 11 and 12

4

Points at which ribs join their cartilages; they are not palpable.

Costochondral junctions

5

U shaped depression just above sternum between clavicles

Suprasternal notch

6

“breastbone”. manubrium, body, and xiphoid process

Sternum

7

“Angle of Louis” at articulation of manubrium and sternum, and continuous with second rib.

Manubriosternal angle

8

The right and left costal margins form an angle where they meet at xiphoid process.

Costal Angle

9

___ also marks the site of tracheal bifurcation into right and left main bronchi. It also corresponds with upper border of atria of the heart, and it lies above fourth thoracic vertebra on back.

“Angle of Louis” or Manubriosternal angle.

10

Flex your head and feel for most prominent bony spur protruding at base of neck.

Vertebra prominens

11

Count down these knobs on vertebrae, which stack together to form spinal column.

spinous process

12

Scapulae are located symmetrically in each hemothorax.

Inferior border of scapula

13

Palpate midway between spine and a persons side to identify it’s free tip.

12th rib

14

Use ___ to pinpoint finding vertically on chest.

Reference lines

15

anterior chest reference lines:

note midsternal and midclavicular line

16

posterior chest reference lines:

note vertebral (midspinal) line and scapular line

17

Lift up the persons arm 90 degrees and divide lateral chest by what 3 lines?

Anterior axillary line
Posterior axillary line
Midaxillary line

18

middle section of thoracic cavity containing esophagus, trachea, heart, and great vessels

Mediastinum

19

What cavities contains the lungs?

Right and left pleural cavities

20

Which lobe of the lung is shorter and why?

The right lung is shorter because of the underlying liver

21

Which lung is narrower and why?

The left lung is narrower because the heart bulges to the left.

22

How many lobes in each side of the lungs?

Right side has 3 lobes: upper, middle, and lower.
Left side has 2 lobes: upper and lower

23

__ form an envelope between lungs and chest wall.
Thin and slippery serous membranes.

Pleurae

24

__ normally has a vacuum, or negative pressure which holds lungs tightly against chest wall.

Pleural cavity

25

Pleural cavity is potential space filled with __.

Only a few milliliters of lubricating fluid.

26

Trachea lies ____ and is ___ inches long.

anterior to the esophagus and is 10-11 cm long.

27

trachea and bronchi ___ between the environment and lung parenchyma.

Transport gases

28

Trachea and Bronchi are lined with ___.

goblet cells

29

Functional respiratory unit consists of bronchioles, alveolar ducts, alveolar sacs and alveoli.

Acinus

30

4 major functions of the respiratory system:

1. Supplying oxygen to the body for energy production.
2. Removing carbon dioxide as a waste product of energy reactions.
3. Maintaining homeostasis (acid-base balance) of arterial blood.
4. maintains heat exchange (less important in humans)