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Bio 151 > ch 22 respiratory system > Flashcards

ch 22 respiratory system Flashcards

1
Q

What is respiration?

A

Ventilation of lungs (Breathing)

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2
Q

what are the major functions of the respiratory system?

A

Gas exchange
Communication
Olfaction
Acid-base balance
BP regulation

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3
Q

what are the organs of the respiratory system?

A

nose, pharynx, larynx, trachea, bronchi, lungs

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4
Q

What is the Conducting division of respiratory system?

A

Passages that serve only for airflow
No gas exchange
Nostrils through major bronchioles

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5
Q

what is the Respiratory division of the respiratory system?

A

Consists of alveoli and other gas exchange regions

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6
Q

What is the Upper respiratory tract comprised of?

A

Nose through larynx

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7
Q

What is the Lower respiratory tract comprised of?

A

organs of the thorax
Trachea through lungs

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8
Q

Name the structure labelled A?

A

Pharynx

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9
Q

Name the structure labelled B?

A

Larynx

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10
Q

Name the structure labelled C?

A

Trachea

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11
Q

Name the structure labelled D?

A

Right lung

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12
Q

Name the structure labelled E?

A

Epiglottis

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13
Q

Name the structure labelled F?

A

Esophagus

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14
Q

Name the structure labelled G?

A

Left lung

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15
Q

Name the structure labelled H?

A

Left main bronchus

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16
Q

Name the structure labelled I?

A

Lobar bronchus

17
Q

Name the structure labelled J?

A

Segmental bronchus

19
Q

What are the main functions of the nose in respiration?

A

–Warms, cleanses, and humidifies inhaled air

–Detects odors

–Serves as a resonating chamber that amplifies voice

20
Q

What is the structure labelled A?

A

Pharyngeal tonsil

21
Q

What is the structure labelled B?

A

Palatine tonsil

22
Q

What is the structure labelled C?

A

Lingual tonsil

23
Q

What is the structure labelled D?

A

Epiglottis

24
Q

What is the structure labelled E?

25
Q

What is the structure labelled F?

26
Q

Name the 3 regions of the pharynx

A

Nasopharynx

Oropharynx

Laryngopharynx

27
Q

Which regions does the Nasopharynx cover?

A
  • Posterior to nasal apertures and above soft palate
  • Receives auditory tubes and contains pharyngeal tonsil
28
Q

Which regions does the Oropharynx cover?

A
  • Space between soft palate and epiglottis
  • Contains palatine tonsils
29
Q

Which regions does the Laryngopharynx cover?

A
  • Epiglottis to cricoid cartilage
  • Esophagus begins at that point
30
Q

What type of epithelium covers the nasopharynx?

A

pseudostratified columnar epithelium

31
Q

What type of epithelium covers the oropharynx and larygnopharynx?

A

•stratified squamous epithelium

32
Q

What do the muscles of the pharynx assist with?

A

swallowing and speech

33
Q

What is the Larynx (voice box)

A
  • cartilaginous chamber about 4 cm long
  • Keeps food and drink out of the airway
34
Q

What is the Epiglottis?

A

flap of tissue that guards the superior opening of the larynx

During swallowing, extrinsic muscles of larynx pull larynx upward

Tongue pushes epiglottis down to meet it

Closes airway and directs food to esophagus behind it

35
Q

What is the role of Vestibular folds of the larynx

A

play greater role in keeping food and drink out of the airway

Bio 151 (12 decks)

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