Exam 3: The Human Body: A Nutrition Perspective

What substance helps suspend fat in a watery digestive mixture,making fat more available to digestive enzymes?

Nutrient-rich blood leaving the intestine goes by way of a vein directly to the

The physical barriers of the skin and GI tract support the ______ immune response.

To which body part does blood travel to pick up oxygen and release carbon dioxide?

Which pH best describes the environment of the stomach when stimulated?

What percentage of a meal has been absorbed by the time it leaves the small intestine?

Water,dietary fiber,bacterial cells,and worn-out intestinal cells are components of

These protein-based substances enhance digestion by making chemical reactions more likely to happen.

The epiglottis

A(n)______ is a medication that inhibits the ability of gastric cells to secrete hydrogen ions.

The ring-like muscles that prevent the backflow of partially digested food within the gastrointestinal tract are called

In passive absorption,nutrients enter the cell

The stomach empties into the small intestine through the

Which large blood vessel is the first to receive most recently eaten nutrients,transporting them to the liver?

The _____ system is made up of several glands that act in the regulation of metabolism,reproduction,water balance,and many other functions.

The function of thick mucus in the stomach is to

Which of the following is an important dietary recommendation for avoiding heartburn?

Which of the following organs serves as a storage depot for many vitamins and minerals?

The study of how genes determine our nutritional requirements is called

Which of the following is not a sphincter?