Exam 28: A: Anatomy of the Digestive System

The presence of villi and microvilli increases the surface area of the large intestine.

The peritoneum that lines the abdominal wall is called the parietal layer.

The lesser curvature is located on the upper right border of the stomach.

The large intestine has a diameter of about 2.5 inches and a length of about 5 to 6 feet.

Villi in the small intestines contain arterioles,venules,and lacteals.

A hiatal hernia is caused by a weakening of the wall of the large intestine.

The neck is the exposed portion of the tooth.

In addition to enamel,the outer shell of the tooth has two additional dental tissues: dentin and gingivae.

The tubercle is a slight prominence found on the lip.

The hard palate is composed of two maxillae: the ethmoid and sphenoid bone.

Hemorrhoids are enlargements of the smaller arteries in the anal canal.

In the wall of the small intestine,circular muscles are grouped into rings that produce pouch-like haustra between them.

The pyloric sphincter is located in the fundus portion of the stomach.

The sublingual glands are the smallest of the major salivary glands.

The sigmoid colon gets its name from its shape.

In the pancreas,alpha cells produce insulin and beta cells produce glucagon.

The cecum is the first part of the large intestine; it consists of a blind pouch located in the lower right quadrant of the abdomen.

The duodenum of the small intestine was named based on its length.

Jaundice occurs when the pancreatic duct is blocked and the contents of the pancreas enter the blood.

The vermiform appendix is attached to the sigmoid part of the large intestine.