Human Body Systems

Students should be able to...

• Understand and know the life process functions and parts that compose the following human body systems:
  • Circulatory system
  • Respiratory system
  • Skeletal system
  • Muscular system
  • Digestive system
  • Nervous system
• Know how these body systems work together to maintain health and fitness.

Skeletal System and Muscular System Resources

• Bill Nye - Bones and Muscles
• Interactive Skeleton Sites (some sites require Internet Explorer)
• Muscular System - Kids Health Video
• Skeletal System - Study Jams
• Muscular System - Study Jams
• Label/Assemble the Skeleton - ABCYa
• Skeletal System - Flexbook
• Muscular System - Flexbook

Digestive System Resources

• Part of the Digestive System - Interactive Site
• Digesting Food - Interactive Site
• Bill Nye - Digestion
• How the Digestive System Works - Kids Health Video
• Magic School Bus - Gets Eaten
• Digestive System - Flexbook

Respiratory and Circulatory Systems Resources

• The Heart - Interactive Lesson (open link in Explorer)
• Heart and Circulation - Interactive Lesson (open link in Explorer)
• The Respiratory System - Interactive Lesson (open link in Explorer)
• How Your Heart Works - Kids Health Video
• How Your Lungs Works - Kids Health Video
• Bill Nye - Blood and Circulation
• Bill Nye - Respiration
• Circulatory System - Animation (open link in Explorer)
• The Circulatory System - Study Jams
• The Respiratory System - Study Jams
• The Cardiovascular System - Flexbook
• The Respiratory System - Flexbook

The Nervous System Resources

• The Nervous System - Study Jams
• How Your Brain Works - Kids Health Video
• Bill Nye - The Brain
• The Nervous System - Flexbook

All Body Systems Resources

• Body Systems - Interactive Site (open in Explorer)
• Organs - Interactive Site (open in Explorer)
• Interactions between Systems - Flexbook
• Human Biology - Interactive with videos

Vocabulary

Nervous System:

Function: Sends electrical signals (messages) to all other body systems

Parts/Organs:

1. Brain= control center
2. Spinal cord=like a highway that messages travel on to/from your brain to the rest of your body
3. Nerves=receive or send messages back to your brain

Interacts (works with): 1. All other body systems to control them by sending messages. The brain sends voluntary messages (like moving your arm) and involuntary messages (like telling your heart to beat or your food to digest)

Digestive System:

Function: Breaks down foods into useable sources of energy

Parts/Organs:

1. Mouth – Start of the digestion process
2. Esophagus – Tube running from your mouth to your stomach
3. Stomach – Organ that uses acids to break down food into nutrients
4. Small Intestine – Removes nutrients from food and sends to bloodstream
5. Large Intestine – Fat and other harmful substances removed

Interacts (works with):

1. Circulatory System to transport or move nutrients through your blood to all other parts of your body

Circulatory/Cardiovascular System:

Function: Transports (moves) nutrients and oxygen to cells throughout your body. Also, transports carbon dioxide to your lungs to breathe out.

Parts/Organs:

1. Heart – Strong muscle that involuntarily pumps blood and connects to the lungs to get oxygen
2. Blood – carries oxygen and nutrients to body’s cells
3. Veins – carry blood TO your heart
4. Arteries – carry blood AWAY from your heart

Interacts (works with):

1. Respiratory system – gets oxygen and then transports to body’s cells
2. Nervous System – tells the heart muscles to pump
3. Skeletal System – produces red blood cells used by the circulatory system to transport to body’s cells

Respiratory System:

Function: To BREATHE! Supplies oxygen to cells and gets rid of waste (carbon dioxide)

Parts/Organs:

1. Mouth
2. Nose
3. Trachea – Tube from mouth and nose to the lungs
4. Lungs

Interacts (works with):

1. Circulatory System – move oxygen through bloodstream to cells and takes carbon dioxide back to the lungs to breathe out

Skeletal System

Function: Protects organs in the other body systems, gives your body structure/shape/support to stand, produces red blood cells.

Parts/Organs:

1. 206 bones in an adult body
2. Skull – protects the brain
3. Teeth – used to break food into smaller pieces
4. Rib Cage – protects heart and lungs
5. Cartilage – connective tissue that prevents friction between bones

Interacts (works with):

1. Muscular system to help the body move since muscles is attached to bone
2. Protects organs in your body from each body system

Muscular System

Function: Facilitates or helps with body movement

Parts/Organs:

1. Muscles – contract and relax to move bones
2. Heart – the strongest muscle in your body
3. Tendons – attach muscle to bone
4. Voluntary muscles – you control them!
5. Involuntary muscles – you do NOT control them .They are automatic

Interacts (works with):

1. Skeletal system – muscles contract and relax to help with movement
2. Circulatory system – heart (muscle) pumps blood, nutrients, and oxygen to body