Answer to Question 1
ANS: B
The major and minor pectoralis muscles are broad fan-shaped muscles of the upper anterior chest (Figure 9-25). The pectoralis major originates on the humerus and inserts onto the clavicle and sternum. The pectoralis minor originates on the scapula and inserts on the anterior portions of ribs 3 through 5. When these muscles receive impulses from the pectoral nerves, they normally func-tion to adduct the arms in a hugging motion. They are also capable of generating some anterior thoracic lift when the arms are braced on a surface in front of a subject. Those individuals who suffer with chronic shortness of breath often utilize these muscles by sitting in a tripod posi-tion. This is performed by sitting upright and leaning forward with both arms braced on a table.
Answer to Question 2
ANS: B
Functionally, the diaphragm is divided into a right and left hemidiaphragm. Each hemidiaphragm is innervated by a phrenic nerve that arises from branches of spinal nerves C3, C4, and C5.
Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event
Patient teaching: lung assessment
Preoperative and Postoperative Patient Instructions
Patient Physical Status Classification
Identical Twin Normal Birth Position
Position the client