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Human Body Systems

Human Body Systems. Chapters 28-34. Levels of organization in the Body. Cells Tissues Organs Organ Systems Organism. red blood cell. nerve cell. Cells. Cells are the basic unit of structure and function in the body Egg + Sperm Cell = Zygote Zygote divides into embryonic Stem Cells

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Human Body Systems

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  1. Human Body Systems Chapters 28-34

  2. Levels of organization in the Body • Cells • Tissues • Organs • Organ Systems • Organism

  3. red blood cell nerve cell Cells • Cells are the basic unit of structure and function in the body • Egg + Sperm Cell = Zygote • Zygotedivides into embryonic Stem Cells • Stem Cells commit to becoming one specialized cell type • Develop specialized structures to carry out their functions

  4. cell tissue Tissues • Tissues are groups of similar cells working together • Different types of tissues • Epithelial (skin, glands, ALL OVER) • Connective Tissue (BLOOD, BONES, CARTILAGE) • Muscle Tissue • Nervous Tissue

  5. ORGANS ORGAN SYSTEM ORGANISM Organs • Organs are different tissues working together

  6. Organ Systems • Organ system are two or more organs working together • There are 11 major organs systems in the body

  7. ORGANS ORGAN SYSTEM ORGANISM Organism • An Organisms is all organ systems working together

  8. 1. Integumentary System • Components: Skin, Hair, Nails, Oil Glands, Sweat Glands • Functions: • Acts as a barrier again injury/infection • Protects against UV radiation • Helps to regulate body temperature

  9. Integumentary System • 3 Layers of the Skin • Epidermis • Dermis • Hypodermis • Keratin: Tough Protein that waterproofs the skin • Skin Pigment is called Melanin

  10. 2. Skeletal system • Components: Bone, Cartilage, Ligaments, Tendons • Functions: • Supports and protects vital organs • Allows movement • Stores minerals • Serves as the site for red blood cell formation

  11. Skeletal System • Axial Skeleton • Skull • Vertebrae • Rib Cage • Appendicular Skeleton • Pectoral Girdle • Pelvic Girdle • Limbs

  12. 3. Muscular System • Components: Skeletal Muscles • Functions: • Produces voluntary and involuntary movement

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