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| What are the responsibilites of the respiratory system? |
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Definition
1.for the exchange of gases between the body and the air - respiration.
1a. along with the cardiovascular system it provides oxygen to the body cells for energy and removes carbon dioxide from the body cells.
2.for producing sound and assisting in the body's defense against foreign materials. |
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Definition
| the exchange of gasses between the body and the air. |
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| oxygen is provided to the body cells and carbon dioxide is removed from the body cells through what processes? |
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Definition
external respiration
internal respiration |
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Definition
| Inhaling oxygen and exhaling carbon dioxide |
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| exchange of carbon dioxide and oxygen in the lungs. |
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| The respiratory system consists of |
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Definition
a series of tubes or airways that transport air into and out of the lungs.
It is divided into two parts;upper respiratory tract and the lower respiratory tract. |
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| upper respiratory tract consists of |
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Definition
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| lower respiratory tract consists of |
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Definition
| trachea, bronchi, and lungs |
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| one way air enters the body(mouth). external portion of nose is composed of cartilage and bone covered with skin. |
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| after entrance to the nose air enters the nasal cavity. it is divided into right and left chambers |
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Definition
| the dividing wall that seperates the right and left chambers of the nasal cavity. |
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| hollow areas or cavities within the skull that communicate with the nasal cavity. These hollow cavities are air spaces and not solid bone, they lighten the skull and enhance the sound of the voice. |
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Definition
| hairlike projections on the mucous membranes sweep dirt and foreign material toward the throat for elimination. |
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Term
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Definition
(or throat)the airway that connects the nose and the mouth to the larynx.
a single organ
divided into three sections;nasopharynx,oropharynx, laryngopharynx
serves as a common passageway for both air and food. |
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Definition
| upper portion of the pharynx located behind the nose. the adenoids(pharyngeal tonsils) |
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| Middle portion of the pharynx located behind the mouth. contains the palatine tonsils |
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Definition
also known as hypopharynx
the lower portion of the pharynx located just behind the larynx |
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Definition
| also called the pharyngeal tonsils. rounded masses of lymphatic tissue. |
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Term
| job of the adenoids and the tonsils |
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Definition
| to filter out bacteria and other foreign matter that pass through the area. |
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| located on either side of the soft palate in the oropharynx |
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Definition
| a small flap of cartillage the covers the opening of the larynx during the act of swallowing so that food can't enter the larynx and lower airways while passing through the pharynx to the lower digestive system. |
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Definition
| also know as the voicebox. contains the vocal cords. connects the pharynx with the trachea. supported by 9 cartilages, the most prominent of which is the thyroid cartilage at the front that forms the adams apple. |
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Definition
| the structures of the larynx that make vocal sounds possible. two reedlike folds of tissue that stretch accross the larynx and vibrate as air passes through the space between them, producing sound |
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Definition
| the space between the vocal cords. |
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| known as the windpipe. extends into the chest and serves as a pasageway for air to the bronchi. lies in front of the esophagus. consist of muscular tissue embedded with 16 to 20 c-shaped rings of cartilage seperated by fibrous connective tissue. These rings provides rigidty which helps keeps the tracheal tube open. |
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Definition
| the tube through which food passes on its way to the stomach |
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Definition
| the two tubes that the trachea branches into. each bronchus leads into a seperate lung. and divides and subdivides into progressively smaller tubes. |
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Definition
| the smaller tubes coming from the bronchi which terminate at the alveoli |
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Definition
| known as air sacs or pulmonary parenchyma. very thin walls that allow for the exchange of gasses between the lungs and the blood. surrounded by a network of tiny blood vessels called capillaries. |
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Definition
| two cone shaped spongy organs consisting of alveoli, blood vessels, elastic tissue, and nerves. divided into lobes. left lung has two and the right has three lobes. they extend from the collarbone to the diaphram. |
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Definition
| the uppermost part of the lung. |
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| the portion of the lung in the midline region where the blood vessels, nerves, and bronchial tubes enter and exit. |
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Definition
| lungs are surrounded by a double folded membrane. |
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| the outer layer of the pleura, which lines the thoracic cavity |
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| the inner layer of the pleura which covers the lung. |
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Definition
| the small space between the parietal pleura and the visceral pleura. filled with a lubricating fluid that prevents friction when the two slide against each other during respiraton. |
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Definition
| the space between the lungs. contains the heart, aorta, trachea, esophagus, and bronchi |
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Definition
| a muscular partition that seperates the thoracic cavity from the abdominal cavity, aids in the process of breathing. |
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Definition
| examining by application of the hands or fingers to external surface of the body. Used to detect evidence of disease or abnormalities in the various organs. |
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| listening for sounds within the body with a stethoscope. |
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| tapping of fingertips to determine position, size, and consistency of an underlying structure and the presence of fluid or pus in a cavity. solid organ has dull flat sound and an air filled structure has a clear, hollow sound. |
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Definition
| visual examination fo external surface of body as well as its movements and posture. |
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Term
| steps in exhalation or expiration |
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Definition
diaphram is relaxed therefore rises back into thoracic cavity.(pushing up on the chest cavity)
chest cavity decreases in size
increases presure within the thorax
forces air out of the lungs |
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Term
| steps in inhalation or inspiration |
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Definition
breathe in
diaphram stimulated by the phrenic nerve
diaphram now contracts and flattens
then the chest cavity enlarges
causing a decrease in pressure in the thorax
drawing air into the lungs. |
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