Human Body Systems Quiz

The body's control center, includes the brain, spinal cord, and nerves. It receives signals from the environment and sends instructions to the body.

Supports the body, stores minerals, and produces blood cells. Includes bones and joints.

Delivers oxygen and nutrients to the body's cells and removes waste. Includes the heart, blood vessels, and blood.

Breaks down food into nutrients and absorbs them into the body. Includes the stomach, intestines, and liver.

Regulates body processes like growth, metabolism, and mood through hormones released by glands.

The process of physically breaking down food into smaller pieces.

The process of chemically breaking down food into its absorbable molecules.

The process of taking in food through the mouth.

The process of breaking down food into its simplest components that the body can absorb.

The process of the body absorbing nutrients from digested food into tissues and cells.

The process of eliminating undigested waste from the body.

A mixture of chewed food and saliva, formed in the mouth.

The rhythmic contractions and relaxations of muscles that help move food through the digestive tract.

A condition where the body doesn't receive enough nutrients, leading to weight loss, weakness, and a weakened immune system.

Solid particles that form in the gallbladder, blocking bile flow, which can cause pain and complications such as inflammation.

Inflammation of the appendix, a small pouch connected to the colon, often causing sharp pain in the lower right abdomen, and requiring surgery to prevent a potentially life-threatening rupture.

A burning sensation in the chest due to stomach acid rising into the esophagus, often linked to acid reflux disease (GERD).

Inflammation of the liver, often caused by viral infections (hepatitis A, B, or C), alcohol use, or certain medications.

Sores that develop on the lining of the stomach or the upper part of the small intestine, caused by an imbalance between stomach acid and protective mechanisms.

Infrequent or difficult bowel movements, often characterized by hard stools and a sense of incomplete evacuation. It can be caused by dehydration, low fiber intake, or certain medications.

Excessive intake of calories or nutrients, often leading to obesity, metabolic disorders, and health problems like diabetes.

The primary organ of the excretory system, responsible for filtering waste from the bloodstream.

Tubules connecting the kidneys to the bladder, transporting urine.

A muscular sac that stores urine until it contracts to signal the body to release it.

The tube through which urine exits the body.

The process by which the body removes waste products from the blood and maintains a stable internal environment.

Maintaining the proper water balance in the bloodstream.

When the body doesn't have enough water to function properly.

Crystals formed in the kidneys from concentrated urine.

The largest airway in the respiratory system, connecting the larynx to the bronchi.

Sac-like structures at the end of bronchioles where gas exchange occurs, absorbing oxygen from the air we breathe into the blood.

A leaf-shaped flap that prevents food from entering the respiratory tract during swallowing.

The process of physically taking in oxygen from the air and expelling carbon dioxide from the body.

The main organ of the respiratory system, spongy and responsible for gas exchange.

The process of oxygen and carbon dioxide moving in and out of the respiratory system.

The upper part of the respiratory system, including the nose, pharynx, epiglottis, and larynx.

The lower part of the respiratory system, including the trachea, bronchi, bronchioles, and alveoli.

The blood vessels that carry blood away from the heart, like a highway carrying oxygenated blood.

The blood vessels that carry blood back to the heart, like a highway bringing deoxygenated blood.

The thinnest blood vessels, where oxygen and nutrients are exchanged between the blood and tissues.

The number of times your heart beats per minute.

The circulation of blood from the right ventricle to the lungs, where it picks up oxygen and releases carbon dioxide.

The circulation of blood from the left ventricle to the rest of the body, delivering oxygen and nutrients.

The separation between the right and left sides of the heart, preventing deoxygenated and oxygenated blood from mixing.