Human anatomy

Form of digestion responsible for the physical breakdown of food and movement by peristaltic waves

Mechanical digestion

The surface of the inside of the large intestines is mostly smooth because of the lack of these structures

Villi

Flap that is responsible for the regulation of food down the esophagus and air down the trachea

Epiglottis

Which structure is responsible for secreting enzymes into the large intestine

None of the above

Which is true considering salivary amylase

Increase the concentration of sugars

In humans

chemical digestion is accomplished by enzyme action that begins in the mouth and ends in the, Small intestine

Which structure produces a substance that aids in the emulsification of fats?

Liver

You eat some nuts that are full of proteins. What begins to break down this nutrient?

Pepsin

What usually takes the shortest to digest?

Carbohydrates

Peristalsis in the large intestine happens

2-4 times a day

If a doctor told you mastication was the most important part of digestion what area are they referring to?

Mouth

Functions of the liver

Filter, storage, conversions

What is produced when you see or smell appealing food?

Saliva

What is the function of the small intestines

Absorption of nutrients and secretion of enzymes

Structures that act similar to heart valves

preventing food from moving in the wrong direction, Sphincter

Use the figure to answer the following 2 questions

a and b. Along with labeling the diagram, A. Esophagus B. Stomach C. Small intestine D. Large intestine

Area where only peristalsis occurs?

A

longest part of the digestive system by length

C