Chapter 22: Respiratory System Lecture Outline Flashcards

1
Q

Consists of a system of tubes that delivers air to the lungs

A

Respiratory system

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2
Q

Which two systems work together to deliver oxygen to the tissues and remove carbon dioxide?

A

The respiratory and cardiovascular systems

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3
Q

Why do we need O2?

A

Mitochondria; ATP - need oxygen to make adenosine triphosphate

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4
Q

Why are we producing CO2?

A

Byproduct as ATP is being produced

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5
Q

Functions of respiration include:

A

Gas exchange, communication, olfaction, acid-base balance, helps produce angiotensin II, produce pressure gradients to help blood and lymph flow, filters small clots, and valsalva maneuver assists in urination, childbirth, and defecation

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6
Q

The conducting division of the respiratory system includes:

A
  • those passages that serve only for airflow
  • no gas exchange
  • nasal cavity through terminal bronchioles
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7
Q

The respiratory division of the respiratory system consists of:

A

alveoli and other gas exchange regions

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8
Q

The upper respiratory tract is located in the

A

head and neck

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9
Q

The lower respiratory tract is located in the

A

organs of the thorax

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10
Q

Functions of the nose:

A
  • warms, cleanses, and humidifies inhaled air
  • detects odors
  • serves as a resonating chamber
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11
Q

The nose extends from

A

nostrils (nares) to posterior nasal apertures (choanae)

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12
Q

Facial part is shaped by bone and what cartilage?

The nose

A

hyaline cartilage

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13
Q

Divides the nasal cavity:

A

nasal septum

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14
Q

The nasal conchae include the:

A

superior, middle, and inferior

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15
Q

Narrow air passage beneath each conchae:

A

meatus

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16
Q

Meatus characteristics:

A
  • narrowness and turbulence ensure that most air contacts mucous membranes
  • cleans, warms, and moistens the air
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17
Q

What lines most of the nasal cavity?

A

Respiratory epithelium

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18
Q

Cells that secrete mucus and cilia propel the mucus posteriorly toward the pharynx

A

Goblet cells

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19
Q

Three regions of the pharynx:

A
  • nasopharynx
  • oropharynx
  • laryngopharynx
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20
Q

Region of the pharynx that is posterior to nasal apertures and above the soft palate; receives auditory tubes and contains pharyngeal tonsil

A

nasopharynx

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21
Q

Region of the pharynx spaced between the soft palate and epiglottis; contains palatine tonsils and lingual tonsils

A

oropharynx

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22
Q

Region of the pharynx from the epiglottis to the cricoid cartilage; esophagus begins at that point

A

laryngopharynx

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23
Q

Which regions of the pharynx are shared with the digestive system?

A
  • oropharynx

- laryngopharynx

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24
Q

Region of the pharynx that passes only air and is lined by pseudostratified columnar epithelium

A

nasopharynx

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25
Q

Regions of the pharynx that pass air, food, and drink, and are lined by stratified squamous epithelium

A
  • oropharynx

- laryngopharynx

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26
Q

Muscles of the pharynx assist in:

A

swallowing and speech

this is where the hyoid bone comes in

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27
Q

AKA the voicebox; cartilaginous chamber about 4cm (1.5 in) long

A

Larynx

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28
Q

Primary functions of the larynx are to:

A

keep food and drink out of the airway and sound production

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29
Q

Flap of tissue that closes airway and directs food to esophagus behind it

A

Epiglottis

30
Q

What structure in the larynx play a greater role in keeping food and drink out of the airway?

A

Vestibular Folds

31
Q

How many cartilages make up the framework of the larynx?

A

Nine

32
Q

The first three cartilages of the larynx that are solitary and relatively large:

A
  • Epiglottis
  • Thyroid cartilage
  • Cricoid cartilage
33
Q

Spoon-shaped supportive plate; most superior cartilage of the larynx
(Elastic cartilage)

A

Epiglottis

34
Q

largest, laryngeal prominence (Adam’s apple); shield-shaped
(testosterone stimulates growth so this is larger in males)
(Hyaline cartilage)

A

Thryoid cartilage

35
Q

connects the larynx to the trachea, ring like

Hyaline cartilage

A

Cricoid cartilage

36
Q

Three smaller, paired cartilages in the larynx:

A
  • arytenoid cartilages (2)
  • corniculate cartilages (2)
  • cuneiform cartilages (2)
37
Q

Suspends the larynx from hyoid and hold it together

A

Ligaments

38
Q

The interior wall of the larynx has two folds:

A
  • superior vestibular folds

- inferior vocal folds

39
Q

Superior vestibular folds:

A
  • play no role in speech

- close the larynx during swallowing

40
Q

Inferior vocal folds:

A
  • produce sound when air passes between them
  • covered with stratified squamous epithelium
  • glottis
41
Q

the vocal cords and the opening between them

“true vocal cords”

A

Glottis

42
Q

Air forced between vocal folds vibrates them

A

Sound production

43
Q

When cords are taut, it produces

A

high-pitched sounds

44
Q

When cords are slack, it produces

A

low-pitched sounds

45
Q

Adult male vocal cords are usually longer and thicker; vibrate more slowly and so produce

A

lower-pitched sound

46
Q

determined by the force of air passing between them

A

Loudness

47
Q

a rigid tube about 12cm (4.5in) long and 2.5cm (1in) in diameter
- also called the windpipe

A

Trachea

48
Q

Location of the trachea:

A

anterior to the esophagus

49
Q

The trachea is supported by 16-20 C-shaped rings of what kind of cartilage?
(Helps prevent collapse)

A

Hyaline cartilage

50
Q

The opening of the rings in the trachea faces posteriorly toward the esophagus which allows room for:

A

the esophagus to expand as swallowed food passes by

51
Q

The mucosa of the trachea are composed of:

A
  • ciliated pseudostratified columnar epithelium

- mucociliary escalator

52
Q

The trachea is composed of:

A
  • Mucosa
  • Middle tracheal layer (submucosa)
  • Adventitia
53
Q

End of the trachea forks into:

A

right and left main (primary) bronchi

54
Q

Inferior concave portion resting on the diaphragm

The lung

A

Base

55
Q

Tip that projects just above the clavicle

The lung

A

Apex

56
Q

Pressed against the ribcage

The lung

A

Costal surface

57
Q

Faces medially toward the heart

The lung

A

Mediastinal surface

58
Q

Slit through which the lung receives the main bronchus, blood vessels, lymphatics, and nerves

A

Hilum

59
Q

Right Lung:

A
  • shorter than the left lung

- has three lobes; superior, middle, and inferior separated by horizontal and oblique fissure

60
Q

Left Lung:

A
  • tall and narrow
  • has two lobes; superior and inferior separated by a single oblique fissure
  • has indentation; cardiac impression (cardiac notch is anterior portion of cardiac impression)
61
Q

a branching system of air tubes (from main bronchus to 65,000 terminal bronchioles)

A

Bronchial tree

62
Q
  • supported by C-shaped hyaline cartilage rings

- enters the lungs

A

Main (primary) bronchi

63
Q
  • supported by cartilage plates

- enters the lobes

A

Lobar (secondary) bronchi

64
Q

The three right lobar (secondary) bronchi:

A

superior, middle, and inferior lobar bronchi

65
Q

The two left lobar bronchi:

A

superior and inferior

66
Q
  • supported by cartilage plates

- 10 on right, 8 on left

A

Segmental (tertiary) bronchi

67
Q
  • segmental bronchi enter this

- functionally independent unit of the lung tissue

A

Bronchopulmonary segment

68
Q

All bronchi are lined with:

A

ciliated pseudostratified columnar epithelium

69
Q

The bronchial tree have MALT:

A

Mucosa-Associated Lymphoid Tissue

70
Q

The bronchial tree contains a smooth muscle layer that regulates airflow;
Will constriction of airway increase or decrease airflow?

A

Decrease

71
Q

Each bronchiole enters a:

A

pulmonary lobule