Human Anatomy and Body Systems

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Human Anatomy and Body Systems
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Levels of Organization
Remember, the human body is organized in several
levels, from the simplest to the most complex. .
. Cells the basic unit of life Tissues
clusters of cells performing a similar
function Organs made of tissues that perform
one specific function Organ Systems groups of
organs that perform a specific purpose in the
human body
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The purpose of the 10 organ systems is for the
human body to maintain homeostasis Homeostasis
regulation of an organisms internal life
maintaining conditions despite changes in its
environment.
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The 10 Human Body Systems
The 10 human body systems are as follows --
nervous system -- integumentary system --
respiratory system -- digestive system --
excretory system -- skeletal system -- muscular
system -- circulatory system -- endocrine
system -- reproductive system
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The Integumentary System

• Purpose It protects the body from external
  factors such as bacteria, chemicals, sun rays and
  temperature.

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The Skeletal System
Purpose/Function 1 Shape and Support 2.Protect
Internal Organs 3.Major Muscles for
Movement 4.Blood Cells Formed in Marrow 5.Calcium
and Phosphorus Storage
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The Muscular System
Purpose works with the skeletal and nervous
system to produce movement, also helps to
circulate blood through the human body
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The Digestive System
Purpose to convert food particles into simpler
molecules that can be absorbed into the
bloodstream and used by the body
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The Respiratory System
Purpose to provide the body with a fresh supply
of oxygen for cellular respiration and remove the
waste product carbon dioxide
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The Circulatory System
Purpose to deliver oxygenated blood to the
various cells and organ systems in your body so
they can undergo cellular respiration
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The Excretory System
Purpose to rid the body of wastes, including
excess water and salts
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The Nervous System
Purpose to coordinate the bodys response to
changes in its internal and external environment
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The Endocrine System
Purpose to control growth, development,
metabolism and reproduction through the
production and secretion of hormones
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The Immune System
Purpose to remove infectious diseases and other
pathogens from the human body
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The Reproductive System

• Purpose To produce offspring.