Respiratory System Flashcards

1
Q

System jobs

A

Breath
Talk & smell
Warms and moistens air to body requirements
Do liver O
Remove waste gases
Protect airway
Helps maintains homeostasis

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2
Q

Parts of system

A

Nose
Pharynx
Larynx (voice box)
Trachea (wind pipe)
Bronchi
Lungs

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3
Q

Two zones

A

Conducting zone (nose & bronchioles) forms oath to inhale gases

Respiratory zone (alveolar duct to alveoli) gas exchanges

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4
Q

2 tracts

A

Upper tract (nose, pharynx & larynx)

Lower tract (trachea, bronchi, bronchioles, alveolar duct & alveoli)

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5
Q

Nose function

A

Warm, moisturise, filter air. Hairs and mucus help trap dust

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6
Q

Pharynx

A

Throat, permits swallowing into the esophagus or gullet

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7
Q

Larynx

A

Voice box primary function to lower airway by closing abruptly upon mech stim halting respiratory and entry of matter. Also have vocal fold allowing speech and sounds

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8
Q

Trachea

A

Provides clear airway to and from lungs

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9
Q

Lungs

A

Remove O from air passing to blood and remove CO2

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10
Q

Bronchi

A

Primary bronchi splits into L & R to secondary bronchi carry air into lobes. Secondary split into smaller tertiary bronchi in each lobe then split into bronchioles that spread through lungs. Tertiary split into terminal bronchioles

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11
Q

Diaphram

A

Thin sheet of skeletal muscle forms floor of thorax contract to allow air in and relaxes to allow air out of lungs

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12
Q

Other components

A

Cilia ( tiny hairs move in wave motion to filter dust)

Epiglottis (tissue flap trachea entrance stop food and liquids into lungs)

Intercostal muscles (between ribs, assist diaphragm)

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13
Q

Muscles that help increase volume of chest cavity

A

Scalenes
Sternocleidomastoid
Pectoralis major & minor
Serrated anterior
Latissimus dorsi

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14
Q

VO2

A

VO2 is O amount taken and used by body

Continued aerobic exercise (>1min), longer duration anaerobic fitness & at less degree muscular endurance, VO2 increase linearly with intensity

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