closed circulatory system
Set of organs in the rib cage with branching passages where air is inhaled and exhaled
Where air is drawn, moistened and filtered
When this organ moves down, air is drawn into the lungs
A flap of cartilage behind the root of the tongue, which is depressed during swallowing to cover the opening of the windpipe
Located at the back of the nose and mouth
Also known as the voice box
Reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and taking air to and from the lungs
Where oxygen and carbon dioxide is diffused into the blood stream
The major air passages of the lungs which diverge from the windpipe
The smaller branches that divide off of the Bronchi
the entire process of gas exchange between the atmosphere and the cells
a hollow space behind the nose
bones that curl out from lateral walls of the nasal cavity on each side, dividing the cavity into passageways
air-filled spaces located within the maxillary, frontal, ethmoid, and sphenoid bones of the skull and open into the nasal cavity
or throat, is behind the oral cavity, the nasal cavity and the lyrynx; the passage way for food traveling from the oral cavity to the esophagus and for the air passing between the nasal cavity and the larynx
the enlargement in the airway at the top of the trachea and below the pharynx; it conducts air in and out id the trachea and prevents foreign objects from entering the trachea
the opening between the vocal cords
usually stands upright and allows air to enter the larynx; helps protect from food and liquids to enter the air passages
consists of branched airways leading from the trachea to the microscopic air sacs in the lungs
arise from the trachea at the level of the fifth thoracic vertebra
smaller tubes that continue to divide giving rise to others
very thin tubes, lead to the alveolar sacs
leads to smaller microscopic air sacs called alveoli
smaller microscopic air sacs
soft, spongy, cone-shaped organs in the thoracic cavity
a layer of serous membrane
folded back visceral pleura attached to each surface of the lung
the potential space between the visceral and parietal pleurae
the actions providing air movements, inhalation
synthesize a mixture of lipids and proteins
iron containing protein
combination of oxygenated blood with the iron atoms of hemoglobin
a deficiency of O2 reaching the tissues
carbon dioxide bonds with hemoglobin
the cavity behind the nose and above the roof of the mouth that filters air and moves mucus and inhaled contaminants outward and away from the lungs.
voice box-passageway for air moving from pharynx to trachea; contains vocal cords.
one of the tubules forming the respiratory system.
The passages that branch from the trachea and direct air into the lungs.
the paired organs in the thoracic cavity where gas exchange takes place between air in the alveoli and blood in the pulmonary capillaries.
progressively smaller tubular branches of the airways.
tiny sacs of lung tissue specialized for the movement of gases between air and blood.
short structures projecting from a cell and containing bundles of microtubules that move a cell through its surroundings or move fluid over the cell's surface.
protective secretion of the mucus membranes.
passing or able to pass air in and out of the lungs normally.
the metabolic processes certain organisms obtaining energy from organic molecules.
the exchange of gases between the air in the alveoli and the blood in the pulmonary capillaries.
the uppermost cartilage of the larynx; covers the larynx during swallowing
inhalation; the intake of air into the lungs
any of the fine branching blood vessels that form a network between the arterioles and venules.
Covers larynx during swallowing
organ of gas exchange
Cover the lungs and line the chest cavity
Common passageway for air, food, and drink (throat)
Muscles that surround the lungs and cause inhalation and exhalation
Passageway for air and food
Encloses thoracic cavity and protects heart and lungs
Moves ribs during respiration
Air sacs for gas exchange
Production of sound (voice box)
Filters, warms, and moistens air
Main airway (windpipe)
Skeletal muscles of respiration
Lead to alveolar sacs
Passageway for air
Nose, Pharynx, Larynx
Lower Respiratory Tract
The exchange of gases