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Cells in your body have specific functions (jobs).

Cells in your body have specific functions (jobs). Red Blood Cell. Platelet. White Blood Cell. Fat Cell. Muscle Cell. Bone Cell. Nerve Cell. Cells with similar functions working together form a TISSUE . Muscle Tissue. Nerve Tissue. Adipose Tissue (fat tissue). Bone Tissue. Blood.

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Cells in your body have specific functions (jobs).

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  1. Cells in your body have specific functions (jobs). Red Blood Cell Platelet White Blood Cell Fat Cell Muscle Cell Bone Cell Nerve Cell

  2. Cells with similar functions working together form a TISSUE. Muscle Tissue Nerve Tissue Adipose Tissue (fat tissue) Bone Tissue Blood

  3. Cuboidal cells EPITHELIAL TISSUE (3 types) Lining of glands, kidneys tubules, ducts of glands Columnar cells Squamous cells Lining of lungs, heart, mouth, blood vessels, and skin. Lining of stomach, intestines, nose, ears, and tongue

  4. CONNECTIVE TISSUE adipose tissue (fat cells) cartilage (chondroblast cells) blood (platelets, red and white blood cells) bone (osteoblastcells) bone blood adipose cartilage

  5. NERVOUS TISSUE • Brain • Spinal Cord • Nerves

  6. Muscle Tissue Smooth Muscle Tissue Skeletal Muscle Tissue Cardiac Muscle Tissue

  7. SMOOTH MUSCLE Found in blood vessels, stomach, intestine, esophagus, • Not striated • Involuntary • Not branched • Slow to tire

  8. SKELETAL MUSCLE attaches to and moves bones. • Striated • Voluntary • Not branched • Tires when working hard

  9. CARDIAC MUSCLE Found only in the heart. • Striated • Involuntary • Branched • Never tires

  10. Two or more tissues working together make up an ORGAN.

  11. Organs working together make up an ORGAN SYSTEM.

  12. Homeostasis is the state of having a stable internal environment.

  13. OBJECTIVES • Discuss the functions of the skeletal system. • Describe the structure of a bone.

  14. FUNCTIONS OF THE SKELETAL SYSTEM • Provides shape and support • Allows movement • Protects vital organs and tissues • Stores certain materials • Produces blood cells

  15. 206 bones make up the skeleton. The Skeletal System is the body’s living framework.

  16. Most of the skeletal system is made up of bones, ligaments, tendons, and cartilage (connective tissues).

  17. The skeleton is divided into two parts. • Axial skeleton • Appendicular skeleton

  18. Axial Skeleton Appendicular Skeleton skull shoulders ribs breastbone arms and hands vertebral column pelvis/hips legs and feet

  19. Axial Skeleton Protects the Organs.

  20. Appendicular Skeleton Provides Movement

  21. Development of Bone

  22. Ball and Socket A ball and socket joint allows for radial movement in almost any direction. They are found in the hips and shoulders.

  23. Hinge A hinge joint allows extension and retraction of an appendage.

  24. Injuries to the skeletal and muscular systems. • Sprain – ligaments and tendons are torn or pulled beyond their stretching range. • Fracture – a break in the bone. • Dislocation – when a bone is forced out of its joint.

  25. TheEnd!

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