Term
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Definition
| This pattern expands the chest cavity where oxygen is brought to the blood and air is drawn into the lungs. |
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Term
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Definition
| This pattern helps get rid of mixed air and gases. The muscles contract to reduce the volume of the chest cavity, creating a positive pressure within the lungs. |
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Term
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Definition
| These organs are located in the thoracic cavity and take up most of the cavity's space. One is bigger than the other because the liver is located directly underneath it. |
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Term
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Definition
| Tubes that extend from the lungs upward to the trachea. They are composed of cartilaginous rings bound together by fibroelastic tissue. |
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Term
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Definition
| Less cartilaginous than the bronchi; however are more muscular in composition. They communicate with alveolar ducts that open into tiny air sacs. |
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Term
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Definition
| A tube formed by approximately 20 rings of cartilage. This structure comes into direct contact with the esophagus, it connects to the inferior border of the cricoid cartilage. |
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Term
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Definition
| Vertebrae that are divided into 5 segments. Cervical, thoracic, lumbar, sacral, and coccygeal. |
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Term
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Definition
| This structure consists of 3 parts: Manubrium, body, and xiphoid process. |
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Term
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Definition
| Uppermost segment of the sternum and provides the attachment for the clavicle and the first rib. |
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Term
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Definition
| Is a long and narrow segment of the sternum. Cartilages of ribs 2 through 7 attach here. |
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Term
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Definition
| A small cartilagious structure found at the bottom of the body of the sternum. |
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Term
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Definition
| Usually called the chest and consists of 12 pairs of ribs that form a cyndrical structure. |
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Term
| Thoracic Muscles of Inspiration |
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Definition
| Diaphragm, abdomen, and intercostal muscles. |
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Term
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Definition
| A thick, dome-shaped muscle that separates the abdomen from the thorax. It also distends abdomen, enlarges vertical dimension of thorax, and depresses central tendon. |
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Term
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Definition
| Houses structures such as the intestines, liver, and kidneys. Critical in providing support for breathing. |
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Term
| Internal intercostal muscles |
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Definition
| pull the ribs downward to decrease the diameter of the thoracic cavity for exhalation. |
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Term
| External intercostal muscles |
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Definition
| raise the ribs up and out to increase the diameter of the thoracic cavity for inhalation. |
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Term
| Muscles that help elevate the rib cage. |
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Definition
| Serratus posterior superior, levator costarum brevis, levator costarum longis, and external intercostals. |
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Term
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Definition
| Elevates the sternum and indirectly the rib cage. |
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Term
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Definition
| Controls the head and elongates the neck, thus indirectly influencing respiration. |
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Term
| Muscles which increase or decrease the dimension of the rib cage. |
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Definition
| Pectoralis major, pectoralis minor, serratus anterior, and levator scapulae. |
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Term
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Definition
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Term
| Serratus Posterior Inferior muscles |
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Definition
| When contracted, pull the rib cage down and thus aid in exhalation. |
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Term
| Abdominal muscles of Expiration |
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Definition
| Latissimus dorsi, rectus abdominis, transverse abdominis, internal oblique abdominis, and quadratus lumborum. |
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