THE MUSCLES AND FASCIA OF THE TRUNK 143 



called Camper's fascia, and a deep layer termed 

 Scarpa's. 



The deep layer is attached to Poupart's ligament, 

 and is continued around the male and female genitalia; 

 the superficial layer also passes to the male and female 

 genitalia. The deep fascia of the abdomen is so 

 adherent to the underlying structures that it is difficult 

 to see. 



The Muscles of the Abdomen. They are as follows: 



External oblique. Trans versalis. 



Internal oblique. Rectus. 



Pyramidalis. 



The external and internal oblique and the trans- 

 versalis are thin, flat, broad muscles which possess 

 aponeuroses and they all form with the rectus the 

 anterior and lateral abdominal walls, being lined the 

 transversalis by the peritoneum. They are arranged 

 one on either side. The aponeuroses of the oblique 

 and transversalis pass toward the outer edge of the 

 rectus and ensheath the two halves. In a general way 

 the oblique and transversalis muscles are attached to the 

 lower ribs, crest of the ilium, and Poupart's ligament. 



The Fasciae and Muscles of the Thofacic Region, 

 Fascia, of Pectoral Region (Chest) . Superficial contains 

 the mammary gland, sending septa into it and support- 

 ing it. The deep fascia is thin, covering the surface 

 of the pectoralis major muscle; it is attached to the 

 middle of the front of the sternum, above to the 

 clavicle, and below is continuous with the fascia over 

 the shoulder, axilla, and thorax. It encloses the space 

 between the pectoralis major and latissimus dorsi 

 muscles; it is called in this region the axillary fascia. 



THE MUSCLES OF THE ANTERIOR THORACIC REGION. 

 These are as follows: 



Pectoralis major. Subclavius. 



Pectoralis minor. 



