Respiratory system function

Responsible for breathing, gas exchange, and supplying oxygen while removing carbon dioxide

Breathing usually occurs without conscious effort

Movement of air into and out of the lungs

Process of gas exchange in the body

Exchange of oxygen and carbon dioxide between air in lungs and bloodstream

Gas exchange between blood and body cells

Filters, warms, and humidifies inhaled air

Passageway for air, food, and liquids

Voice box that conducts air and produces sound

Windpipe that carries air to and from the lungs

Air passageways branching from the trachea into the lungs

Smaller branches of bronchi inside the lungs

Tiny air sacs where gas exchange occurs

Small blood vessels surrounding alveoli for gas exchange

Number of breaths taken per minute

Upper respiratory tract

Involves air intake, filtering, warming, and humidification

Lower respiratory tract

Transports air and performs gas exchange

Nasal region with coarse hairs that filter debris

Nasal region responsible for smell

Nasal region that warms and humidifies air

Air-filled cavities that moisturize and protect respiratory tract

Upper pharynx section for air passage

Pharynx section for air, food, and liquids

Lower pharynx section leading to trachea or esophagus

Flap that prevents food and liquid from entering the airway

Opening between the vocal cords

Main organs of respiration containing bronchi and alveoli

Dome-shaped muscle that controls breathing by changing chest volume

Membranes that protect lungs and reduce friction

Central chest cavity separating the lungs

Brain region that controls breathing

Nerve that signals the diaphragm to contract

Damage lung tissue and impair respiratory function

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chp8 anat/phys

Question	Answer
Respiratory system function	Responsible for breathing, gas exchange, and supplying oxygen while removing carbon dioxide
Automatic breathing	Breathing usually occurs without conscious effort
Ventilation	Movement of air into and out of the lungs
Respiration	Process of gas exchange in the body
External respiration	Exchange of oxygen and carbon dioxide between air in lungs and bloodstream
Internal respiration	Gas exchange between blood and body cells
Nasal cavity	Filters, warms, and humidifies inhaled air
Pharynx	Passageway for air, food, and liquids
Larynx	Voice box that conducts air and produces sound
Trachea	Windpipe that carries air to and from the lungs
Bronchi	Air passageways branching from the trachea into the lungs
Bronchioles	Smaller branches of bronchi inside the lungs
Alveoli	Tiny air sacs where gas exchange occurs
Capillaries	Small blood vessels surrounding alveoli for gas exchange
Respiratory rate	Number of breaths taken per minute
Upper respiratory tract	Involves air intake, filtering, warming, and humidification
Lower respiratory tract	Transports air and performs gas exchange
Vestibular region	Nasal region with coarse hairs that filter debris
Olfactory region	Nasal region responsible for smell
Respiratory region	Nasal region that warms and humidifies air
Paranasal sinuses	Air-filled cavities that moisturize and protect respiratory tract
Nasopharynx	Upper pharynx section for air passage
Oropharynx	Pharynx section for air, food, and liquids
Laryngopharynx	Lower pharynx section leading to trachea or esophagus
Epiglottis	Flap that prevents food and liquid from entering the airway
Glottis	Opening between the vocal cords
Lungs	Main organs of respiration containing bronchi and alveoli
Diaphragm	Dome-shaped muscle that controls breathing by changing chest volume
Pleurae	Membranes that protect lungs and reduce friction
Mediastinum	Central chest cavity separating the lungs
Medulla oblongata	Brain region that controls breathing
Phrenic nerve	Nerve that signals the diaphragm to contract
Carbon dioxide levels	Determine breathing rate
Smoking and vaping	Damage lung tissue and impair respiratory function

Created by: ush

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