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Flashcards in thorax and breathing Deck (38)
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1

what is the thorax composed of?

- ribcage and muscles
- sternum
- thoracic vertebrae

2

what does the thorax contain?

- heart
- lungs
- pleura
- BVs
- nerves

3

what is the central portion of the thorax called?

mediastinum

4

where do the lungs extend from and to?

from the diaphragm to the point above the clavicles

5

the lungs lie against what posteriorly and anteriorly?

ribs

6

the medial surface of the lungs is slightly concave, what is the function of this?

allow for other viscera to fit in the thorax

7

what enters the lungs at the hilum?

primary bronchi and blood vessels

8

what separates the lobes of the lungs on the left and right lung?

oblique fissure

9

what is the top of the lungs called?

apex

10

name the lobes of right lung?

- upper
- middle
- lower

11

name the lobes of the left lung

- upper
- lower

12

what separates the lobes of the lungs on the right side only?

horizontal fissure

13

is the base of the lung at the front or back?

back

14

the groove in the lungs is known as what?

aortic impression

15

what surface of the lungs joins them to the ribs?

costal surface

16

what surface of the lungs joins them to the diaphragm?

inferior surface

17

what separates the pleural cavity and the mediastinum?

parietal pleura

18

which pleura lines the whole of the thoracic cavity?

parietal pleura

19

where does the parietal pleura adhere to?

internal surface of ribs and superior face of diaphragm

20

where does the visceral pleura lie?

against the parietal pleura, covering the outer surface of the lungs

21

the space between the partial and visceral pleura contains what?

pleural fluid

22

what is the function of pleural fluid?

prevent friction

23

a space in the thoracic cavity not filled by lungs is known as what?

costodiaphragmatic recess

24

what are the muscles of the thorax important for?

respiration

25

which muscles depress the ribs?

internal intercostals

26

which muscles elevate the ribs?

external intercostals

27

which muscle enlarges the thorax as it contracts and moves down?

diaphragm

28

which muscle depresses the last rib at the back?

quadratus lumborum

29

where does the aorta sit own relation to the diaphragm?

behind the diaphragm

30

which muscle raises the clavicle in forced inspiration?

sternocleidomastoid