Digestive System

Which organ is considered to be an accessory organ to the digestive system?

• Stomach
• Mouth
• Small Intestines
• Gallbladder

What is considered to be the first step in the digestion process?

• Chewing
• Churning in the stomach
• Contractions in the small intestine
• Secretion of digestive enzymes by the pancreas

The enteric nervous system is a network of nerves within the:

• intestines that usually communicates with the central nervous system but can operate without CNS input.
• central nervous system that innervates the gastrointestinal tract.
• peripheral nervous system that controls digestion.
• intestines that operates completely separately from the CNS.

Tags

NGSS.HS-LS1-3

Digestion begins in the

• mouth
• stomach
• small Intestines
• large intestines

What is the main component of saliva?

• Lipase
• Amylase
• Water
• Antibacterial Compounds

Where is the pyloric sphincter located?

• Between the cardia and fundus
• Between the esophagus and cardia
• Between the pyloris and the duodenum
• Between the body and pylorus

Most of the process of digestion and the absorption of nutrients take place in the

• small intestine.
• stomach.
• large intestine.
• mouth.

The aroma of freshly baked cookies causes your mouth to water. This is which phase of gastric secretion?

• Olfactory Phase
• Cephalic Phase
• Gastric phase
• Intestinal phase

The liver receives oxygen-poor, nutrient-rich blood from the digestive organs and spleen by way of the

• hepatic portal vein.
• The layer of the digestive tract that contracts and relaxes to propel food forward is the:
• central vein.
• hepatic artery.

Blood filters through which liver structure to remove nutrients, toxins, and hormones?

• Sinusoids
• Canaliculi
• Hepatocytes
• Lobules