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Human Respiratory System:
Structure
Created @July 10, 2023 11:20 AM
Reviewed
Status Not started
TOPIC LEARNING OUTCOMES
Articulate the macro structure and tissue structure of the human respiratory
system.
CUE NOTES
The human respiratory system consists of
the nasal cavity, air passages, lungs and
respiratory muscles.
Air Passages:
Nostril and nasal cavities
The airways passages:
Bronchi, Bronchioles, and The cells lining the nose
Alveoli secrete mucus that traps dust particles
and prevents them entering the lungs. The
mucus also moistens the air.
Small hairs in the nasal cavities filter
larger particles from the inhaled air. The
nasal cavities are lined with a mucous
membrane, which consists of ciliated
columnar epithelial cells.
Human Respiratory System: Structure 1
, The columnar epithelial cells are richly
supplied with superficial blood capillaries
that warm the incoming air.
Cilia on the columnar epithelial cells
continuously perform
sweeping movements in the
direction away from the lungs, and dust-
carrying mucus is expelled to the outside.
Pharynx and Larynx
The air passes over the pharynx and the
epiglottis
The epiglottis is a flap of cartilage that
closes the opening to the trachea (glottis)
when swallowing, to prevent food entering
the trachea
Trachea
The trachea, like all air passages, is lined
with a mucous membrane of ciliated
columnar epithelial cells
The Epiglottis is a flap of cartilage that
closes the opening to the trachea when
swallowing, to prevent food entering the
trachea and blocking the airway, which
would cause choking.
Goblet cells in the tissue secrete mucus,
which traps dust particles and prevents it
entering the lungs by the sweeping action
of the cilia, after which it is coughed up or
swallowed
The cilia on the cells beat to move the
mucus upwards to the throat where it is
swallowed.
The openings of the C-shaped cartilage
rings, covered by involuntary muscle
Human Respiratory System: Structure 2
Human Respiratory System:
Structure
Created @July 10, 2023 11:20 AM
Reviewed
Status Not started
TOPIC LEARNING OUTCOMES
Articulate the macro structure and tissue structure of the human respiratory
system.
CUE NOTES
The human respiratory system consists of
the nasal cavity, air passages, lungs and
respiratory muscles.
Air Passages:
Nostril and nasal cavities
The airways passages:
Bronchi, Bronchioles, and The cells lining the nose
Alveoli secrete mucus that traps dust particles
and prevents them entering the lungs. The
mucus also moistens the air.
Small hairs in the nasal cavities filter
larger particles from the inhaled air. The
nasal cavities are lined with a mucous
membrane, which consists of ciliated
columnar epithelial cells.
Human Respiratory System: Structure 1
, The columnar epithelial cells are richly
supplied with superficial blood capillaries
that warm the incoming air.
Cilia on the columnar epithelial cells
continuously perform
sweeping movements in the
direction away from the lungs, and dust-
carrying mucus is expelled to the outside.
Pharynx and Larynx
The air passes over the pharynx and the
epiglottis
The epiglottis is a flap of cartilage that
closes the opening to the trachea (glottis)
when swallowing, to prevent food entering
the trachea
Trachea
The trachea, like all air passages, is lined
with a mucous membrane of ciliated
columnar epithelial cells
The Epiglottis is a flap of cartilage that
closes the opening to the trachea when
swallowing, to prevent food entering the
trachea and blocking the airway, which
would cause choking.
Goblet cells in the tissue secrete mucus,
which traps dust particles and prevents it
entering the lungs by the sweeping action
of the cilia, after which it is coughed up or
swallowed
The cilia on the cells beat to move the
mucus upwards to the throat where it is
swallowed.
The openings of the C-shaped cartilage
rings, covered by involuntary muscle
Human Respiratory System: Structure 2
