Human Anatomy

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Human Anatomy Physiology

• Anatomy study of body structure
• Name
• Location
• Shape (morphology)
• Composition (what it is made of and how it is
  arranged)
• Physiology study of how bodyworks/functions
• cause-effect relationships
• Homeostasis
• Structure relates to function Anatomy and
  physiology are tightly linked together

• Disruption of normal anatomy and physiology
  disrupts normal function and can threaten life
• Disease Injury

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Homeostasis

• maintenance of a relatively stable internal
  environment
• conditions are maintained near a set point(s)

normal range
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Examples of internal conditions/substances and
their normal range
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Homeostasis

• maintenance of a relatively stable internal
  environment
• conditions are ARE NOT ABSOLUTELY CONSTANT
• Vary between upper and lower set-points
• e.g., blood glucose 75-110 mg/100 ml
• Accomplished through negative feedback (explained
  later)

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75
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Levels of Organizationfunctional and structural
organization of the body
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Central Importance of Cells

• Cells are the basic functional and structural
  unit of the body
• The structure and functions of higher levels
  reflect the combined influence of cells
• Cells are not independent
• They are interdependent on
• Each other
• Organ systems/higher levels of organization
• Cells are made of chemicals
• Cells require proper conditions/homeostasis

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(No Transcript)
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Organ Systemsincomplete list

• Cardiovascular System
• Respiratory System
• Digestive System
• Urinary System
• Nervous System
• Endocrine System

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INTERDEPENDENCE OF ORGANSYSTEMS AND CELLS
raw materials
waste
waste
CAPILLARIES
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Arteries carrying blood away from heart --NO
EXCHANGE
Veins carrying blood back to heart --NO EXCHANGE
Capillaries --Microscopically small --EXCHANGE
HAPPENS
Cells of body
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Nervous System works with electricity (nerve
impulse) and neurotransmitters

• Characteristics

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Endocrine System works with hormones distributed
through blood

• Characteristics

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Summary of Organ System Function
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Organ system integration and homeostasis
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Review Questions

• What two systems are needed to get O2 to cells?
• What two systems are needed to get nutrients to
  cells?
• List at least 3 systems needed to eliminate waste
  from the body.
• What is/are the function/s of the Nervous and
  Endocrine System?

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Put a check in all boxes that correctly describes
each system
System Transport materials within the body from one cell to another Obtains O2 Obtains nutrients Removes waste Controls /regulates with hormones Controls/regulates with electricity and neurotranmsitters
endocrine
Respiratory
Digestive
Nervous
Urinary
cardiovascular