Circulatory and Respiratory System

Part of your face used for breathing and smelling

• nose
• lungs
• trachea
• bronchi
• lungs

is a stiff tube that leads air to the bronchi

• nose
• lungs
• trachea
• lungs

two short tubes that direct air into the right and left lungs

• nose
• lungs
• trachea
• bronchi

sponge like and fill up most of the space in your chest

• nose
• lungs
• trachea
• bronchi

tiny air sacs for gas exchange. Air can easily pass through the thin air sac and capillary walls into the blood

• alveoli
• capillaries
• diaphragm

A network of tiny vessels surrounds the lumpy air sacs

• alveoli
• capillaries
• diaphragm

When someone inhales, the diaphragm ________ and the rib muscles __________.

• contracts/contracts
• relaxes/relax

When someone exhales, the diaphragm ________ and the rib muscles __________.

• contracts/contracts
• relaxes/relax

Which is the range of healthy heart rate of children aged 7-9 years old?

• 70-100 beats per minute
• 60-100 beats per minute
• 50-100 beats per minute
• 60-120 beats per minute

Which is the range of healthy heart rate of children aged 10 years and older?

• 70-100 beats per minute
• 60-100 beats per minute
• 50-100 beats per minute
• 60-120 beats per minute