Major tick-borne diseases transmitted to dogs in the United States include: â¢ Lyme disease, which comes from the deer tick, can cause stiffness, lameness, swollen joints, loss of appetite, fever and fatigue. Your dog may not show signs of the disease until several months after infected.
The small intestine begins at the duodenum, which receives food from the stomach. It is a tubular structure, usually between 6 and 7 m long. The area of the human, adult small intestinal mucosa is about 30 m 2.
The enteric nervous system is a network of nerve cells located throughout the gastrointestinal system, including the esophagus, stomach, small intestine and large intestine. View slideshow of images above.