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37 Cards in this Set

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What is the main function of the respiratory system?
To provide gas exchange between the lungs and the external environment.
alveoli
Air sacs or grape-like clusters found at the end of each bronchiole.
bronchi
The trachea divides into two branches called bronchi. Each bronchus leads to a separate lung.
bronchioles
Smallest branches of the bronchi.
cilia
Thin hairs located just inside the nostril, filtering incoming air to remove debris.
diaphragm
Muscle separating the chest and abdomen, aids in breathing.
epiglottis
Flap of cartilage that covers the larynx or voice box.
exhalation
Breathing out.
Inhalation
Breathing in.
larynx
Voice box. The larynx contains structures that make speech possible.
lungs
There are two lungs, the right having three lobes; the superior, middle annd inferior; the left having two lobes: the superior and inferior. The upper part of the lung is called the apex; the lower portion is called the base.
How many lungs do we have?
two
What are the names of the two lungs?
The right having 3 lobes and the left having 2 lobes.
Name the three lobes of the right lung.
1)superior
2)middle
3)inferior
Name the 2 lobes of the left lung.
1)superior
2)inferior
What is the upper part of the lung called?
apex
What is the lower portion of the lung called?
The base.
nose (nares)
The nasal cavity is the passageway for air to enter the body. A wall of cartilage called the nasal septum divides the nose. The nose is lined with mucous membrane. Mucus, which is secreted by the mucous membrane helps to moisten, warm and filter the air as it enters the nose.
What cavity is the passageway for air to enter the body?
nasal cavity
What is the wall of cartilage that divides the nose?
nasal septum
The nose is lined with what?
mucous membrane
What is secreted by the mucous membrane that helps to moisten, warm and filter the air as it enters the nose?
mucus
Paranasal sinuses
Four pairs of sinuses located in the bones of the skull communicate with the nasal cavity. The paranasal sinuses are the maxillary, ethmoid, frontal and sphenoid.
Name the paranasal sinuses?
1)maxillary
2)ethmoid
3)frontal
4)sphenoid
Pharynx
Throat.
Name the 3 divisions of the pharynx.
1)nasopharynx
2)oropharynx
3)sphenoid
Pleura
Multi layered membrane surrounding each lung.
Name the 3 layers of the pleura
1)parietal (outer layer)
2)visceral (inner layer)
3)pleural space (pleural cavity)-containing a lubricating fluid to prevent friction when the membranes rub together during respiration
What does the pleura space (pleural cavity)?
Contains a lubricating fluid to prevent friction when the membranes rub together during respiration
Sinuses
Air-filled cavity within a bone.
Whats the purpose of the sinuses?
They provide mucus.
Thoracic Cavity
Area containing the lungs.
What is the region between the lungs called?
mediastinum
What does the mediastinum contain?
1)heart
2)aorta
3)esophagus
4)trachea
5)bronchial tubes
6)thymus
tonsils
Lymphatic tissue protecting the body from invading organisms. They are found at the back of the throat.
Trachea
Windpipe. The trachea extends from the neck into the chest, directly in front of the esophagus and is held open by a series of C-shaped cartilage rings.
Name the passageway order of air from the nose to capillaries of the lungs.
1)nose (nares)
2)nasal cavities and paranasal sinuses
3)pharynx (throat)
4)larynx (voice box)
5)trachea (windpipe)
6)bronchi
7)bronchioles
8)alveoli (air sacs)
9)lung capillaries (bloodstream)