Organs
Structure
Necessities
Random
Bonus Hard Questions
100
What is the largest organ in the human body

What is the skin?

100

The adult human body typically contains this many bones.

What is 206?

100

These cells are responsible for transporting oxygen throughout the body.

What are red blood cells?

100

This system is responsible for producing hormones that regulate various bodily functions.

What is the endocrine system?

100

This organ filters waste from the blood and produces urine.

What are the kidneys?

200

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

What is the cerebellum?

200

This type of joint allows for a wide range of motion, such as in the shoulder.

What is a ball-and-socket joint?

200

The primary function of these organs is to facilitate gas exchange.


What are the lungs?

200

This part of the nervous system controls involuntary actions, such as heartbeat and digestion.

What is the autonomic nervous system?

200

The process by which the body maintains a stable internal environment is called this.

What is homeostasis?

300

The average adult human has about this many pints of blood.

What is 10 to 12 pints?

300

This type of tissue connects muscles to bones.

 What are tendons?

300

The basic structural and functional unit of life in the human body is called this.

What is a cell?

300

This gland, often referred to as the "master gland," regulates other endocrine glands.

What is the pituitary gland?

300

The outer layer of the skin is known as this.

What is the epidermis?

400

This system is responsible for transporting nutrients, gases, and waste throughout the body.

What is the circulatory system?

400

 This type of blood vessel carries blood away from the heart.

 What is an artery?

400

The smallest unit of the nervous system that transmits signals is called this.

What is a neuron?

400

This structure in the ear is responsible for balance.

 What is the vestibular system?

400

 This part of the eye is responsible for focusing light onto the retina.

What is the lens?

500

This part of the digestive system is primarily responsible for nutrient absorption.

What is the small intestine?

500

 This type of muscle is found in the heart and is involuntary.

What is cardiac muscle?

500

This part of the brain is responsible for higher cognitive functions, such as reasoning and problem-solving.

What is the cerebral cortex?

500

 The body's immune response is primarily managed by this system.

What is the immune system?

500

This hormone, produced by the pancreas, helps regulate blood sugar levels.

What is insulin?

M
e
n
u