test 3: respiratory pt 1 Flashcards

1
Q

what are the 2 main divisions of the anatomical classification of the respiratory system?

A

1) upper respiratory system

2) lower respiratory system

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2
Q

what are the 2 main divisions of the functional classification of the respiratory system?

A

1) conducting

2) respiratory

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3
Q

what are the components of the upper respiratory system

A
  • paranasal sinuses
  • nasal conchae
  • nose
  • nasal cavity
  • nasopharynx
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4
Q

what are the components of the lower respiratory system?

A
  • larynx
  • trachea
  • bronchi
  • lungs
  • bronchioles
  • alveoli
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5
Q

what are the components of the conducting tract?

A
  • nostrils
  • nasal cavity
  • nasopharynx
  • larynx
  • trachea
  • bronchi
  • bronchioles
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6
Q

what are the components of the respiratory tract?

A
  • respiratory bronchioles

- alveoli

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7
Q

what is the purpose of the upper respiratory system?

A

-conditions air - filtered, warmed, humidified, to protect lower delicate structures

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8
Q

what is the purpose of the lower respiratory system?

A

conducting pathway

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9
Q

what type of epithelia lines the conducting tract?

A

-typical respiratory epithelium (pseudo stratified, ciliated, columnar epithelium

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10
Q

what is the purpose of the respiratory tract?

A

-where gas exchange occurs

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11
Q

what type of epithelium lines the respiratory tract?

A
  • respiratory bronchioles - simple cuboidal epithelium
  • alveoli - simple squamous epithelium

-allows gas exchange to happen more easily

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12
Q

where does most of our air enter our body?

A

nostrils

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13
Q

what is the function of paranasal sinuses?

A

-produce mucus; helps keep nasal cavity clean/moist

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14
Q

what is the purpose of nasal conchae?

A
  • bones that line the passageway of the nasal cavity
  • sometimes referred to as terpinated bones - stirs up air as it comes into respiratory system so that mucus lining can interact with dirt particles
  • also allows air more time to warm up and humidify and allows stimulation to be picked up by olfactory epithelium
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15
Q

which structure is only open to air that comes in through our nasal cavity (and not our oral cavity)?

A

-nasopharynx

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16
Q

where does the larynx begin and end?

A

begins at C3-C5, ends at around C6-C7

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17
Q

what structure does the larynx transition to? where?

A

trachea, happens at around C6-C7

18
Q

where does the trachea begin and end?

A

begins at around C6-C7, ands at about T5

19
Q

what are the 6 functions of the respiratory system?

A

1) area for gas exchange
2) protection of respiratory surfaces from environment (dehydration, temp)
3) moves air to and from alveoli (pressure gradients)
4) defends against pathogens (mucus, typical respiratory epithelium)
5) sound production
6) regulation of BV, BP, and fluid pH

20
Q

which other systems help the respiratory system to accomplish its functions?

A

-CV, lymphatic, nervous, and skeletal systems (aka respiratory system does not perform its functions alone)

21
Q

how are typical respiratory epithelium classified?

A

-pseudostratified ciliated columnar epithelium with mucus cells

22
Q

what is the role of cilia in typical respiratory epithelia?

A
  • important role in movement of pathogens

- part of the mucocilia escalator

23
Q

what is the mucocilia escalator?

A
  • mucus and cilia in respiratory tract help move pathogens either up or down respiratory tract so it can get emptied into esophagus instead of bronchioles
  • e.g. if pathogen is in pharynx, cilia and mucus push inferiorly; if pathogens in larynx, push superiorly
24
Q

where are the typical respiratory epithelium NOT found?

A

1) inferior portion of pharynx - stratified squamous epithelium instead (epithelium have to be more resilient to abrasions)
2) respiratory bronchioles - simple cuboidal epithelium instead
3) alveoli - simple squamous epithelium instead

25
Q

the ____ separates the nasal cavity from the oral cavity

A

hard palate

26
Q

how do the soft and hard palate differ from each other?

A
  • hard palate = bone

- soft palate = fleshy

27
Q

what makes up the floor of the nasal cavity/the roof of the oral cavity?

A

hard and soft palate

28
Q

where is the palatine tonsil

A

-base of oral cavity

29
Q

where are the pharyngeal tonsils

A

-posterior nasal cavity

30
Q

where are the lingual tonsils

A

-base of tongue

31
Q

the ____ separates the nasopharynx from the oral cavity

A

soft palate

32
Q

the opening to the auditory tube is found in which part of the respiratory tract?

A

nasopharynx

33
Q

what are the 3 parts of the pharynx from superior to inferior?

A
  • nasopharynx
  • oropharynx
  • laryngopharynx
34
Q

oropharynx

A
  • open to the oral cavity and base of tongue (respiratory and digestive systems)
  • stratified squamous cells
35
Q

laryngopharynx

A
  • transition from pharynx to larynx
  • exposed to oral cavity (respiratory and digestive systems)
  • stratified squamous cells
36
Q

which part of the pharynx is the only one not exposed to both respiratory and digestive systems?

A

nasopharynx - only respiratory

37
Q

the epiglottis is connected to which part of the pharynx?

A

oropharynx

38
Q

list the 3 paired cartilage of the larynx

A

1) corniculate (hyaline)
2) arytenoid (hyaline)
3) cuneiform (elastic)

39
Q

name the 3 unpaired cartilage of the larynx

A

1) epiglottis (elastic)
2) thyroid (surround anterior and lateral larynx)
3) cricoid (surrounds entire larynx)

40
Q

what are the purposes of arytenoid and corniculate cartilages of the larynx?

A

important in opening/closing glottis and in sound production

41
Q

describe the 3 steps of the swallowing process

A

1) tongue forces compacted bolus into oropharynx
2) laryngeal movement folds epiglottis; pharyngeal muscles push bolus into esophagus
3) bolus moves along esophagus; larynx returns to normal position