Download The Human Body

The Human Body
After today, you will be
able to answer:
What are we made of?
How are we organized?
Study of the Human Body
• Called anatomy and physiology
• Anatomy- study of the shape of an organism
and its parts
– Ex: What are the size and shape of our lungs?
• Physiology – study of the function of an
organism and its parts
– Ex: What do our lungs do for our bodies?
Remember!
• What are all living organisms made of?
Cells!!!!
Levels of organization
• We are living organisms and are also made out of
cells
LEVELS
EXAMPLE
• A group of cells make a tissue
cardiac tissue
Levels of organization
• We are living organisms and are also made out of
cells
LEVELS
EXAMPLE
• A group of cells make a tissue
cardiac tissue
• A group of tissues make an organ
heart
Levels of organization
• We are living organisms and are also made out of
cells
LEVELS
EXAMPLE
• A group of cells make a tissue
cardiac tissue
• A group of tissues make an organ
• A group of organs make a system
heart
circulatory
system
Levels of organization
• We are living organisms and are also made out of cells
LEVELS
EXAMPLE
• A group of cells make a tissue
cardiac tissue
• A group of tissues make an organ
heart
• A group of organs make a system
circulatory
system
• A group of systems make an organism
human
Organ Systems
• There are 11 main
organ systems in
the human body…
• Which ones can you
name?
Organ systems
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Nervous
Skeletal
Muscular
Circulatory
Digestive
Respiratory
Integumentary (Skin)
Excretory (Waste)
Endocrine (Hormones)
Reproductive
Immune (fights disease)
All of these systems
work together to help
you function!!
Organ systems
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Nervous
Skeletal
Muscular
Circulatory
Digestive
Respiratory
Integumentary (Skin)
Excretory (Waste)
Endocrine (Hormones)
Reproductive
Immune (fights disease)
Nervous system
• Responsible for process
information from the
environment
– Senses: taste, see, touch, etc.
• Also to send messages from
the brain to other organs
– Controls movement and
function
– Ex: tells your lungs to inhale
and keeps your heart beating
• Made of special cells- neurons
Skeletal system
• Gives your body shape and
structure
• Protects internal organs
– Ex: rib cage and heart
• Attaches to muscular
system – to help with
movement
• Made of bones, ligaments
and tendons
Muscular System
• Provides movement
• Attached to skeletal
system
• Two types of muscles:
• Voluntary
– Ex: you kick your leg
• Involuntary
– Ex: your heart beating
– Ex: Your stomach
moving food
Circulatory System
• Moves blood through the
body
• Transports oxygen from
lungs to other organs
• Made of heart, arteries,
capillaries and veins
• Arteries- blood flows
away from heart
• Veins- blood flows to the
heart
Digestive System
• Breaks down food to
chemicals that our body
can use
• Starts with the mouth!
– Ex: chewing and digesting
• This provides energy for
your body!