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Level of Organization of Human Body

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Title: Level of Organization of Human Body Author: jelia.day Last modified by: jelia.day Created Date: 9/22/2015 8:31:26 PM Document presentation format – PowerPoint PPT presentation

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Title: Level of Organization of Human Body


1
Level of Organization of Human Body
2
Levels of Organization
  • Cells
  • Organ Systems Tissues
  • Organs

3
Cells
  • Cells
  • basic structural and functional unit of ALL
    living organisms
  • 37.2 trillion cells in human body
  • Specialization
  • process by which cells become specialized for
    their specific function
  • Similar cells specialize to become tissues

4
Types of Cells
  • Blood Cells Nerve Cell
  • Cardiac Muscle Cell Cartilage Cells

5
Types of Cells
  • Bone Cells Adipose Cells (fat)
  • Epithelial Cells (skin) Skeletal Muscle Cells

6
Tissues
  • Tissues
  • collection of similar cells that work together to
    perform a function
  • combine to form organs
  • 4 major tissue types in human body

7
4 Major Tissue Types
  1. Epithelial
  2. Connective
  3. Nervous
  4. Muscle

8
Epithelial Tissue
  • Epithelial Tissue
  • lines outside and inside of the body and organs
  • classified according to shape
  • function to
  • Protection
  • Secretions

9
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10
Connective Tissue
  • Connective Tissue
  • holds things together
  • provide framework
  • Adipose (fat)
  • Tendons
  • Ligaments
  • Blood
  • Bone
  • Cartilage

11
Nervous Tissue
  • Nerve Tissue
  • communication highway from the CNS to the
    muscles, organs, and other systems
  • composed of neurons (nerve cells)

12
Muscle Tissue
  • Muscle Tissue
  • allows for movement
  • Types
  • Skeletal (attaches to bones)
  • Cardiac (causes heart to contract)
  • Smooth (organs)

13
Bone Tissue
14
Adipose Tissue
15
Skeletal Muscle Tissue
16
Cardiac Muscle Tissue
17
Smooth Muscle Tissue
18
Nerve Tissue
19
Cartilage Tissue
20
Epithelial Tissue
21
Identify these cells
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