BJU Health Chapter 5

Digestion begins in the stomach, the first organ of the digestive system.

• True

• False

Food moves downward through the gastrointestinal tract by gravity.

• True

• False

Having the right mix of good bacteria in the gastrointestinal tract benefits health.

• True

• False

Both the kidneys and the urinary bladder filter waste products from the blood.

• True

• False

Doctors can use dialysis to remove waste and excess fluid when the kidneys stop working.

• True

• False

During digestion, most of the water is absorbed in the _______.

• Large intestine

• Stomach

• Esophagus

• Mouth

The kidneys filter waste from the blood, using structures called _______.

• Nephrons

• Alveoli

• Axons

• Villi

What does it mean to "eat the rainbow"?

• Eat foods of different colors

• Eat only fruits

• Eat only vegetables

• Eat foods with artificial colors

What is the result of a person’s urinary system not working properly?

• Buildup of waste and excess fluid

• Increased energy levels

• Improved digestion

• Enhanced muscle growth

Saliva begins the digestive process and is involved in _________.

• chemical digestion

• mechanical digestion

• peristaltic digestion

• physical digestion