Human Anatomy and Nutrition Quiz

The process of taking in food. Happens in the mouth.

The movement of food through the digestive tract using muscle contractions.

The organ where food is churned and mixed with enzymes for further breakdown.

Tiny finger-like projections in the small intestine that increase its surface area for nutrient absorption

The organ responsible for absorbing water from undigested food and forming solid waste.

A condition caused by a lack of vitamin A, resulting in difficulty seeing at night.

A condition caused by a lack of calcium, leading to weak and brittle bones.

The amount of energy a person needs varies depending on factors like age, gender, and activity level.

Consuming too much fat can lead to heart disease and obesity.

The tube that connects your mouth to your stomach.

The primary site of nutrient absorption in the digestive system.

The final section of the large intestine where waste is stored before excretion.

The opening where waste is eliminated from the body.

A fluid secreted by salivary glands that lubricates food and aids in digestion.

Tiny air sacs in the lungs with a large surface area and rich blood supply, maximizing gas exchange.

The process of air moving in and out of the lungs.

The process where the diaphragm contracts to increase lung volume, pulling air into the lungs.

The process where the diaphragm relaxes to decrease lung volume, pushing air out of the lungs.

A harmful gas found in cigarette smoke that restricts blood flow, damages the lungs, and increases the risk of heart disease and cancer.

The process of releasing energy from glucose in the presence of oxygen. This happens in most cells of the body.

The process of releasing energy from glucose without oxygen. This happens mainly in muscles during intense exercise.

The muscle that helps you breathe by moving up and down. It separates the chest cavity from the abdomen.

The airways in your lungs that branch off from the trachea. They are like smaller tubes that lead to the alveoli.

The windpipe, which carries air from your mouth and nose to your lungs. It's like the main road to your lungs.

The tubes that branch from the trachea and lead to each lung. Think of them as the path to each lung.

The process of taking in oxygen and releasing carbon dioxide, which happens in the lungs.

The process of breathing in and out. This process involves changes in lung volume and pressure.

A substance that turns cloudy when reacted with carbon dioxide. It's a good way to test for the presence of carbon dioxide.