Human Body Systems: Body Organization

What is the level of organization in the human body from the least to most complex? (least complex at position 1, most complex at 4)

• tissue

• organ system

• organ

• cell

Tags

NGSS.MS-LS1-3

If you are relating the levels of organization of the human body to the levels of organization of a city, what would you relate cells to? What would you relate the other levels to?

• Organ

• City

• Tissue

• Neighborhood

• Organ System

• House or building

• Cell

• Person

Tags

NGSS.MS-LS1-3

NGSS.MS-LS1-1

Match each organ system with some of the major structures in the system.

• Respiratory System

• heart, blood vessels

• Integumentary System

• skin, hair, nails, sweat glands, oil glands

• Skeletal System

• nose, pharynx, larynx, trachea, bronchi, lungs

• Muscular System

• skeletal muscle, smooth muscle, cardiac muscle

• Circulatory System

• bones, cartilage, ligaments, tendons

Match each body system with one of its major functions.

• Integumentary System

• Guards against infection and injury; helps regulate body temperature

• Respiratory System

• Transports oxygen, nutrients, and wastes

• Circulatory System

• Produces movement, helps circulate blood and move food

• Skeletal System

• Supports the body, protects internal organs, allows for movement

• Muscular System

• Brings in oxygen and removes carbon dioxide

Match each organ system with some of the major structures in the system.

• Excretory System

• mouth, esophagus, stomach, small and large intestines

• Immune System

• lymph nodes, lymph vessels, white blood cells

• Nervous System

• skin, lungs, liver, kidneys, urinary bladder, urethra

• Digestive System

• brain, spinal cord, nerves

Match each body system with one of its major functions.

• Excretory System

• Breaks down food, absorbs nutrients, and removes food wastes

• Nervous System

• Removes waste products from the body

• Digestive System

• Controls the body's responses to changes with the body and outside it

• Immune System

• Fights infections and attacks invading bacteria and viruses

Use evidence from the passage to describe how an organ system is more complex in both structure and function than a single organ.

Your answer should include:

• 1) Ways the function of an organ system is more complex than the function of a single organ

• (function = what it does or its job in the body)

• 2) Ways the structure of an organ system is more complex than the structure of a single organ

• (structure = how something is built or organized)

Tags

NGSS.MS-LS1-3