6th Grade Science Human Body Systems

When the bladder is full, nerve signals are sent to the...

The body system made up of parts that cover and protect the body is the...

This gland secretes a hormone that helps the body react to emergency situations.

This body system is made up of glands that produce hormones.

The part of the brain where thinking takes place is the...

The largest organ of the human body is the...

The body system that serves as a supportive framework is the...

The smallest living part of the body is called...

A good way to care for the urinary system is to replace water lost by drinking lots of Coke.

Cilia helps to improve the quality of the air we breathe by filtering it?

The tube that moves food from your mouth to your stomach is called the...

This body system helps you move and maintain posture.

A group of organs that work together is called...

Which is the blood vessel that carries blood away from the heart?

This body system is made for communication and control.

A group of tissues that work together is called...

A nerve cell or a mass of nerve cells is called a...

The soft material on the end of a bone is...

This body system breaks down food so that it can be used by the body.

A chemical messenger that regulates body activities is called a...

This body system transports oxygen, food, and waste through the body.

Blood circulates through this organ as liquid waste is filtered.

This body system removes liquid waste from the body.

The spinal cord is soft and must be protected by the...

A group of like cells that work together is called...

How many bones are in the human body?

Muscles work...

This body system helps the body use air that is inhaled.

The windpipe through which air travels to the lungs is called the...

This type of muscle is a muscle that you control, for example, your bicep.

One of the most important things you can do to care for the integumentary system is to...

About how many muscles are there in the human body?

The liquid that softens food is called...

Which is the blood vessel that returns blood to the heart?

This gland secretes a hormone that regulates the blood sugar level.

Most digestion takes place in the...

This type of joint allows bones to move back and forth.

The substance that protects the skin and gives it color is...

About how many gallons of blood are in the average human body?

Tiny hairs that line our air passages are called...