An SLP receives a referral regarding a 4-year-old boy who uses two words spontaneously and functionally, who began walking at 3 years of age, and who responds to his name inconsistently. On the basis of the information alone, the SLP can legitimately conclude that the child's communication profile reflects

A. a developmental delay
B. autism spectrum disorder
C. a chromosomal anomaly
D. a metabolic disorder

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.