Human Body System

An ant’s antennae sense temperature and pressure. Which human structure serves the same function?

During recess, Renee scraped her knee, so the nurse put a bandage on it. Which of the functions below that are normally provided by skin is now being provided by the bandage?

The human body receives sensory information from its surroundings. The body knows when food is warm or cold and whether an object is smooth or fuzzy. The body sends signals to other parts of the body, which then respond to the information. Which organ processes the sensory information the body receives?

The digestive system contains several organs working together to achieve a common function. Food passes through some of these organs. Other organs, called accessory organs, never contain food, but are still important to the process of digestion. Which organs are accessory organs to digestion?

Which organ of the digestive system mashes food and mixes it with acid?

Which organ of the digestive system absorbs nutrients from digested food?

The security camera shown in the figure records what goes on in the store. Information from the camera is sent to a computer in the office. There, the information is translated into an image.

Which part of the human body serves the same purpose as the wires leading from the camera to the computer?

The organ shown below, identified with an arrow, plays an important role in digestion by producing a substance that helps break down certain foods.

What substance does this organ produce to help digestion?

The organ shown above, identified with an arrow, is a digestive organ.

What happens when food reaches this organ?

Digestion takes place in the digestive tract, which is shown in the following figure.

n what order does food move through the organs of the digestive tract?