Digestive, Excretory, and Nervous System Quiz

What is the main function of the digestive system? 

• Break down foods into nutrients that can be used by the body, absorb nutrients that are necessary for energy, growth, and maintenance, and rid the body of solid waste.
• Filter out cellular wastes, toxins (chemicals that could be poisonous to the body), and excess water that result from cellular respiration.
• Receive stimuli from inside and outside the body, to interpret the stimuli, and initiate responses for survival.
• Transport blood to all parts of the body so that gases, nutrients, and waste products are transported to and from the cells.

What is the main function of the excretory system? 

• Break down foods into nutrients that can be used by the body, absorb nutrients that are necessary for energy, growth, and maintenance, and rid the body of solid waste.
• Filter out cellular wastes, toxins (chemicals that could be poisonous to the body), and excess water that result from cellular respiration.
• Receive stimuli from inside and outside the body, to interpret the stimuli, and initiate responses for survival.
• Transport blood to all parts of the body so that gases, nutrients, and waste products are transported to and from the cells.

What is the main function of the nervous system? 

• Break down foods into nutrients that can be used by the body, absorb nutrients that are necessary for energy, growth, and maintenance, and rid the body of solid waste.
• Filter out cellular wastes, toxins (chemicals that could be poisonous to the body), and excess water that result from cellular respiration.
• Receive stimuli from inside and outside the body, to interpret the stimuli, and initiate responses for survival.
• Transport blood to all parts of the body so that gases, nutrients, and waste products are transported to and from the cells.

Begins to break down food into small pieces through mechanical digestion; saliva in the starts the process of chemical digestion. 

• mouth
• esophagus
• stomach
• small intestine

The transport tube that carries chewed food to the stomach.

• Mouth 
• Esophagus
• Stomach
• Small Intestine

Continues the process of mechanical digestion; and secretes gastric juices that continue the process of chemical digestion started in the mouth. 

• Esophagus
• Stomach
• Small Intestine
• Large Intestine

The organ where most of the chemical digestion of food takes place; nutrients from food are also absorbed here.

• esophagus
• stomach
• small intestine
• large intestine

The organ where water is absorbed from the food and taken into the bloodstream; prepares the remaining undigested food for elimination from the body. 

• stomach
• small intestine
• large intestine
• rectum 

Get rid of urea, excess water, and some other waste materials released by the cells.

• kidneys
• ureters 
• bladder
• urethra

Tubes which connect each kidney to the bladder.

• Kidneys 
• Ureters
• Bladder
• Urethra