Skeletal & Muscular
Circulatory & Respiratory
Digestive & Urinary
Nervous & Endocrine
Misc.
100

This system provides support, protection, and produces blood cells.

What is the skeletal system?

100

The main organ responsible for pumping blood throughout the body.

What is the heart?

100

The long, coiled tube where most nutrient absorption takes place.

What is the small intestine?

100

The two main divisions of the nervous system.

What are the central nervous system (CNS) and peripheral nervous system (PNS)?

100

The body's first line of defense against pathogens.

What is the skin?

200

The three types of muscle tissue found in the human body.

What are skeletal, smooth, and cardiac muscle?

200

The tiny air sacs in the lungs where gas exchange (oxygen and carbon dioxide) occurs.

What are alveoli?

200

The main filtering organs of the excretory system, which produce urine.

What are the kidneys?

200

Chemical messengers produced by endocrine glands that regulate various body functions.

What are hormones?

200

The largest organ of the integumentary system.

What is the skin?

300

The tough connective tissue that connects bones to other bones at a joint.

What is a ligament?

300

This blood component is responsible for carrying oxygen.

What are red blood cells (or hemoglobin)?

300

This organ produces bile, which helps break down fats.

What is the liver?

300

This part of the brain is responsible for balance and coordination.

What is the cerebellum?

300

It is the process of maintaining an internal state of physiological balance. 


What is Homeostasis?

400

This type of fracture involves a bone breaking through the skin.

What is a compound fracture?

400

The rhythmic contraction and relaxation of the heart is measured by this.

What is a pulse (or heart rate)?

400

The muscular contractions that move food through the digestive tract.

What is peristalsis?

400

The "master gland" of the endocrine system, located at the base of the brain.

What is the pituitary gland?

400

The layer of skin that contains blood vessels, nerves, hair follicles, and sweat glands.

What is the dermis?

500

A condition characterized by the progressive loss of bone density, making bones brittle.

What is osteoporosis?

500

A chronic respiratory disease characterized by inflammation and narrowing of the airways, often triggered by allergens or exercise.

What is asthma?

500

The functional filtering unit of the kidney, responsible for filtering blood and forming urine.

What is a nephron?

500

A condition resulting from the body's inability to produce or properly use insulin, leading to high blood sugar.

What is diabetes?

500

 It is the body’s thermostat, like the thermostat in a home. It monitors the body temperature.


What is the Hypothalamus?