Only the first seven ribs attach directly to the sternum.
For identifying underlying lung lobes, the per tinent landmark is T3
The starting point for locating T3 is the spi nous process of the seventhcervicalvertebra
When the client flexes the neck anteriorly, a prominent process can be observed and palpated. This is the spinous process of the seventhcervicalvertebra
In healthy adults, the thorax is oval.
The overall shape of the thorax is elliptical
In older adults, kyphosis and osteoporosis alter the size of the chest cavity as the ribs move downward and forward.
Pectus carinatum - Pigeon chest
Pigeon chest - a permanent deformity, may be caused by rickets
Rickets - abnormal bone formation due to lack of dietary calcium
Pigeon chest - A narrow transverse diameter, an increased anteroposte rior diameter, and a protruding sternum
pectus excavatum - funnel chest
A funnel chest - a congenital defect, the sternum is depressed, narrowing the anteroposterior diameter
thoracic kyphosis - excessive convex curvature of the thoracic spine
emphysema - chronic pulmonary condition in which the air sacs, or alveoli, are dilated and distended
Scoliosis is a lateral deviation of the spine
Vesicular - Soft-intensity, low-pitched, “gentle sighing” sounds created by air moving through smaller airways
Bronchovesicular - Moderate-intensity and moderate pitched “blowing” sounds created by air moving through larger airway
Bronchial - High-pitched, loud, “harsh” sounds created by air moving through the trachea
Abnormal breath sounds, called adventitious breath sounds, occur when air passes through narrowed airways or airways filled with fluid or mucus, or when pleural linings are inflamed.
Crackles (rales) Fine, short, interrupted crackling sounds; alveolar rales are high pitched. Sound can be simulated by rolling a lock of hair near the ear. Best heard on inspi ration but can be heard on both inspira tion and expiration. May not be cleared by coughing
Gurgles (rhonchi) Continuous, low-pitched, coarse, gurgling, harsh, louder sounds with a moaning or snoring quality. Best heard on expiration but can be heard on both inspiration and expiration.
Friction rub Superficial grating or creaking sounds heard during inspiration and expiration. Not relieved by coughing.
Wheeze Continuous, high-pitched, squeaky musical sounds. Best heard on expiration. Not usually altered by coughing
In the average adult, most of the heart lies behind and to the left of the sternum