Anatomy
The Brain
Diseases & Medicine
The Human Body
Medical Mysteries
100

Which organ pumps blood throughout your body?

Heart

100

How many brains does a human normally have?

One

100

What instrument do doctors use to listen to your heartbeat?

Stethoscope

100

How many lungs does a typical human have?

Two

100

A person has a temperature of 39°C. What do they most likely have?

A fever

200

What is the largest organ in the human body?

Skin

200

Which part of the brain controls balance and coordination?

Cerebellum

200

What disease causes high blood sugar because the body has problems producing or using insulin?

Diabetes

200

Which organs filter waste from the blood to produce urine?

Kidneys

200

Someone has difficulty breathing because their airways become narrowed and inflamed. What condition could they have?

Asthma

300

Which organ produces insulin?

Pancreas

300

What chemical messenger is associated with motivation and reward?

Dopamine

300

Which vitamin deficiency can cause scurvy?

Vitamin C

300

What protein in red blood cells carries oxygen?

Hemoglobin

300

A person has low iron levels and feels tired and weak. What condition might they develop?

Low-iron, anemia

400

What is the name of the muscle that separates the chest cavity from the abdominal cavity and helps you breathe?

Diaphragm

400

Which part of the brain is mainly responsible for regulating breathing and heart rate?

Brainstem

400

What is the medical term for abnormally low red blood cell levels or hemoglobin?

Anemia

400

What is the name of the process cells use to release energy from glucose?

Cellular respiration

400

A person has yellowing of their skin and the whites of their eyes. What is this symptom called?

Jaundice

500

Which chamber of the heart receives oxygen-rich blood from the lungs?

Left atrium

500

What is the name of the brain region that plays a major role in forming new memories?

Hippocampus

500

What disease occurs when the immune system attacks the protective covering of nerves in the central nervous system?

Multiple sclerosis

500

Which type of white blood cell produces antibodies?

B lymphocytes (B cells)

500

A person has severe thirst, frequent urination, and high blood sugar. Which hormone is most directly involved in regulating their blood glucose?

Insulin

M
e
n
u