ch 14 Flashcards Preview

Physiology > ch 14 > Flashcards

Flashcards in ch 14 Deck (53):
1

resipiration

1) move air in and out of lungs 2) exchange gases 3) exchanging gases between blood 4) use of oxygen and production of CO2

2

conchae

bone projections in nostrils covered by ciliated mucous membrane that filters air

3

lacrimal glands

tear glands drain into nasal cavity

4

paranasal sinuses

air-filled spaces within the skull

5

sinusitis

inflammation of the paranasal sinuses

6

pharynx

throat- connects the nasal and roal cavities to the larynx, has 3 parts

7

larynx

voice box located at the top of neck

8

glottis

variable sized opening

9

epiglottis

flap of tissue that prevents food from going into the voice box

10

vocal cords

mucus membrane fold supported by elastic ligaments stretches across glottis

11

trachea

windpipes- extends from larynx into thoracic cavity

12

tracheostomy

tube injected into the trachea that acts as a artificial exhaust pipe

13

bronchus

the divided branch into the lung

14

bronchioles

smaller tertiary bronchi branches

15

alveolus

air sacs that make up the lungs

16

lung cancer

usually begins in a bronchus, callusing and a loss of cilia due to irritants leads to tumors

17

asthma

airflow is obstructed due to widespread narrowing of airways

18

surfactant

lowers surface tension and prevents alveoli from closing up

19

ventilation

manner in which air is drawn into and expelled out of lungs

20

diaphragm

divides thoracic and abdominal cavity

21

pleural membranes

encloses the lungs

22

respiratory center

located into the medulla oblongata, consists of a group of neurons that exhibit an automatic rhythmic discharge that triggers inspiration

23

carotid bodies

located in carotid arteries

24

aortic bodies

located in the aorta

25

inspiration

inhale active phase of breathing

26

expiration

exhale passive phase of breathing

27

tidal volume

amount of air moved in and out of the lungs

28

irv

increase amt beyond tidal volume

29

erv

decrease amt beyond tidal volume

30

rv

remaining air in lungs used for gas exchange purposes

31

dead space

conducting airways filled with unused inspired air

32

external respiration

exchange of gases between alveolar air and blood across the respiratory membrane

33

internal respiration

exchange of gases between blood and tissue cells

34

heimlich maneuver

wrap your arms around the person and thrust upward on their chest

35

oxyhemoglobin

oxygen with hemoglobin
Hb+O2=HbO2

36

chronic bronchitis

due to a constant irritation of the lining of the bronchi

37

flu

viral infection of the respiratory tract

38

otitis

ear infection

39

pandemics

mutated flu virus thats worldwide

40

strepthroat

severe throat infection caused by bacterium streptococcus pyogenes

41

pneumonia

caused by infection in lungs

42

emphysema

destruction of lung tissue with trapped air in lungs

43

pulmonary fibrosis

caused by inhaling sand or coal dust asbestos which results in fibrous connective tissue built up in lungs

44

chronic obstructive pulmonary disease

caused by smoking

45

pneumonectomy

removal of an entire lung or lobe

46

in situ cancer

a tumor consisting of disordered cells with atypical nuclei

47

metastasis

spreading of cancer

48

respiratory organs

nose, mouth, lungs, trachea

49

respiratory infections

cold, flu, bronchitis, strepthroat,

50

five lung disorders

pneumonia, tuberculosis, emphysema, pulmonary fibrosis, lung cancer

51

effects of aging on respiratory system

capacity of breathing lowers, weakend intercostal muscles, ciliated cells of trachea reduce, gas exchange not as efficiant

52

pleural membrane

lungs

53

visceral membrane

other organs