Ls 1 Guided Notes and 2 systems Health 6

The ___________ system gives the body structure, protects internal organs, and produces red blood cells.

• muscular
• skeletal
• nervous

A ________, like the human body, is made up of interworking systems.

• house
• car
• school

Strenuous movement like running and biking stretches lung fibers, allowing the lungs to take in more __________.

• blood
• water
• oxygen

An elevated heart rate improves blood pressure and the circulatory system's ability to carry blood and its ___.

• cells
• nutrients
• fibers

Movement, like (a)   helps improve digestion.

Strength training with weights improves what?

• brain clarity
• breathing
• bone density

What's one thing that will improve your sleep quality?

• more water
• going to bed earlier
• movement
• getting up later

Homeostasis means maintaining a perfectly unchanging internal environment.

• True
• False

Breathing is the main function of what system?

• Cardiovascular
• Respiratory
• Digestive

Which organs are used in the cardiovascular system? Choose all that apply.

• Heart
• lungs
• veins
• blood