Respiratory system flashcards


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what is the function of the respiratory system? supply oxygen to and remove carbon dioxide from the tissue
cells needs oxygen to get? energy
what is pulmonary respiration? moving air into and out of the lungs
what is external respiration? this is the exchange of oxygen and CO2 between the air and blood
The respiratory system can be structurally divided into upper respiratory system and lower respiratory system
what is the upper respiratory system? the nose, pharynx and associated structures
what is the lower respiratory system? the larynx, trachea, bronchi and lungs
The body needs ____ for respiration. oxygen
The exchange of oxygen and CO2 occurs in the alveoli
Gas is exchanged between the alveoli and the pulmonary capillaries through? diffusion
The partial pressure of oxygen is ___ in alveoli compared to external environment lower
During respiration Gas exchange occur through? diffusion
what is diffusion? it is the process by which transport is driven by concentration gradient from high to low concentrations
Gas move from a region of ______ partial pressure to _____ partial pressure high partial pressure to low partial pressure
what is partial pressure? it is the measure of the concentration of the individual components in a mixture of gases
what are some factors that affect gas exchange? oxygen, CO2 and the ventilation/perfusion ratio
what is the function of the nose? warming,moistening the incoming air. Detecting olfactory stimuli
The nasal cavity is divided into the right and left side by the? nasal septum
Ducts from the paranasal sinuses and the nasalacrimal ducts open into the nasal cavity
Bony projections in the cavity wall are known as? conchae
Posteriorly, the nasal cavity opens on to the nasopharynx
what is the pharynx? it is a funnel shaped passageway that connects the nasal cavity and the mouth
The pharynx is divided into three major parts? nasopharynx, oropharynx, and laryngopharynx
what is the nasopharynx? it is a region posterior to the nasal cavity that conducts air
what is the oropharynx? it is a region posterior to the oral cavity that opens to the oral cavity via the fauces
what is the laryngopharynx? it is a region from the level of the hyoid bone downward to the larynx anteriorly and esophagus posterioly. conducts air and food
what is the larynx? voice box. Its a pathway that extends from pharynx to the trachea
what is the thyroid cartilage? Adam's apple. Composed of two plates fused of hyaline cartilage forming the anterior wall
what is the epiglottis? it is an elastic cartilage that attaches to the anterior rim of the thyroid cartilage, it covers the glottis when swallowing
Laryx is also called? voice box
The trachea lead from the mouth and nose and splits into the brochi
The trachea connects ____ and _____ to the lungs pharynx and larynx to the lungs
where are lungs found lungs are a pair of respiratory organs situated in the thoracic cavity.
In the lungs _____ is taken into the body and _____ is breathed out oxygen is taken into the body and carbon dioxide is breathed out
Bronchi consist of the trachea, primary bronchi, secondary brochi, tertiary brochi, bronchioles and terminal bronchioles
walls of bronchi contain rings of cartilage
walls of bronchioles contains smooth muscles
Bronchi splits into bronchioles
Brochioles leads to the Alveoli where gaseous exchange occurs
The exchange of oxygen and CO2 occurs in the alveoli
what are alveoli alveoli are small air sacs surrounded by capillaries adapted for gaseous exchange

what is the function of the respiratory system?

cells needs oxygen to get?

what is pulmonary respiration?

what is external respiration?

The respiratory system can be structurally divided into

what is the upper respiratory system?

what is the lower respiratory system?

The body needs ____ for respiration.

The exchange of oxygen and CO2 occurs in the

Gas is exchanged between the alveoli and the pulmonary capillaries through?

The partial pressure of oxygen is ___ in alveoli compared to external environment

During respiration Gas exchange occur through?

what is diffusion?

Gas move from a region of ______ partial pressure to _____ partial pressure

what is partial pressure?

what are some factors that affect gas exchange?

what is the function of the nose?

The nasal cavity is divided into the right and left side by the?

Ducts from the paranasal sinuses and the nasalacrimal ducts open into the

Bony projections in the cavity wall are known as?

Posteriorly, the nasal cavity opens on to the

what is the pharynx?

The pharynx is divided into three major parts?

what is the nasopharynx?

what is the oropharynx?

what is the laryngopharynx?

what is the larynx?

what is the thyroid cartilage?

what is the epiglottis?

Laryx is also called?

The trachea lead from

The trachea connects ____ and _____ to the lungs

where are lungs found

In the lungs _____ is taken into the body and _____ is breathed out

Bronchi consist of the

walls of bronchi contain rings of

walls of bronchioles contains

Bronchi splits into

Brochioles leads to the

The exchange of oxygen and CO2 occurs in the

what are alveoli

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