Health Overview

What is the function of the heart?

• To put oxygen in your blood.

• To take carbon dioxide out of your blood.

• To pump blood to all parts of your body.

• To help you move.

The heart pumps _______ blood to your body, and _______ blood to your lungs.

• energetic... tired

• red cells... white cells

• oxygen-rich... carbon dioxide-rich

• tired... energetic

Some of the functions of the respiratory system.

• exhale carbon dioxide, inhale oxygen, protects the body from foreign particles, moistens and filters the air.

• digest food, makes you move faster, keep your balance, makes you run

• Helps you taste food, makes you sleep better, helps you remember your school work.

Food goes down the... and air goes down the...

• bronchi... alveoli

• larynx and trachea... esophagus

• esophagus... larynx and trachea

What are the different types of muscle in the body? Skeletal, _______ and smooth muscle.

• cardiac

• respiratory

• skull

Your body has a network of over ______ muscles.

• 560

• 650

• 250

• 350

30-40% of your body weight = ...

• fat

• bones

• muscles

• intestines

Fast twitch fibers can make you move... but they...

• down, don't get tired quickly

• up... can't make you move slow

• slow... can't make you breathe

• fast... get tired quickly

Slow twitch fibers can make you move... but they...

• down, don't get tired quickly

• up... can't make you move slow

• slow... don't get tired quickly

• fast... get tired quickly

What type of muscle fiber would you use for running slowly for a long distance.

• slow twitch

• fast twitch

• skeletal

• smooth