Fun Facts
Systems
Systems
Systems
100

The most sensitive finger on the human body is the ______ finger.

Index

100

What is the primary control center?

Brain/nervous system

100

What does the nervous system do?

It controls the body by sending signals throughout the body telling it what to do.

100

The urinary system is also known as the _____.

Renal System

200

The human brain weighs about ____ pounds.

3

200

____, ____, and ____, act as a barrier to protect the body from the outside.

Skin, hair, and nails. (Integumentary)

200

What is your endocrine system made up of?

Hormones and glands

200

Summarize the functions of the respiratory system.

It helps you breathe by taking the air you breathe down to your lungs through two tubes. They can hold a lot of air and push out CO2 when you exhale. The diaphragm helps push the air out of your lungs.

300

Every square inch of the body has about ____ million skin cells.

19

300

How many different bones are in your body?

206

300

List the major body systems.

Cardiovascular, Nervous, Muscular, and Skeletal

300

Summarize the functions of the digestive system

It breaks down food into smaller molecules then delivers them to the blood cells.

400

1/4 of the bones in our body are in the ____.

Feet

400

Muscles are connected to your bones by ____.

Tendons

400

What is the circulatory system also known as?

Cardiovascular

400

Summarize the functions of the urinary system

Consist of the kidneys (filter the blood), uterus, urinary blatter, and urethra. They drain the urine from the kidneys, store it then release it.

500

Humans are ________ oranisms.

Complicated

500

You have ____ muscles in your body.

600

500

What is the Lymphatic system most commonly called?

Immune System

500

What do nerves help you do? (nervous system)

Nerves are what help you feel temperature, pain, and make you ticklish.