Human Body Systems

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Human Body Systems
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Thinking

• Thinking back to 7th grade What are some of the
  human body systems? Make a list

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Intro to Human systems

• The study of the structure of an organism and its
  parts is called anatomy
• For example
• The anatomy of your mouth tells you how many
  teeth you have
• Physiology is the study of what the structures of
  organisms do.
• For example
• Study of the teeth tells you how the jaw works to
  process food

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Levels of organization

• The human body is composed of many cells
• The cell is the smallest level of organization
• Many cells make up a tissue
• Many tissues make up an organ
• Many organs make up an organ system

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Types of tissue

• There are four main types of tissue
• Epithelial tissue
• Closely packed cells that line your internal
  organs and cover your body
• Connective Tissue
• Hold together and support other tissues, i.e..
  Bone, cartilage, blood

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Types of tissue cont

• Nervous Tissue
• Communication cells, basic unit is a neuron or
  nerve cell
• Muscle tissue
• Tissues for movement

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Organ Systems

• There are 11 main organ systems in the human body

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Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
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Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
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Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
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Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
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Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
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Figure 35-2 Human Organ Systems Part 2
Section 35-1
Respiratory System
Digestive System
Excretory System
Endocrine System
Reproductive System
Lymphatic/Immune Systems