7 th  Grade Chapter 3 Lesson 4 Pgs. 94-99 For Student Use Only
Systems <ul><li>Skeletal System: </li></ul><ul><ul><li>Function of SS: support and protect internal organs </li></ul></ul>...
Systems <ul><li>Bones of the SS: </li></ul><ul><ul><li>Long Bones- humerus (upper arm) and femur (thigh bone)- support wei...
Systems <ul><li>Functions of SS: </li></ul><ul><ul><li>1. Give support and shape to body </li></ul></ul><ul><ul><li>3. Pro...
Systems <ul><li>Muscular System: </li></ul><ul><ul><li>Function of MS: produce movement for your body </li></ul></ul><ul><...
Systems <ul><li>Endocrine System: </li></ul><ul><ul><li>Function of ES- to create chemicals called hormones </li></ul></ul...
Systems <ul><li>Endocrine System: </li></ul><ul><ul><li>Exerts control on organs </li></ul></ul><ul><ul><ul><li>Causes org...
Systems <ul><li>Reproductive System: </li></ul><ul><ul><li>Function of RS: to produce new living organisms  </li></ul></ul...
Systems <ul><li>Nervous System: </li></ul><ul><ul><li>Function of NS: coordinate the activities of your body- control body...
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7th Grade Chapter 3 Lesson 4

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7th Grade Chapter 3 Lesson 4

  1. 1. 7 th Grade Chapter 3 Lesson 4 Pgs. 94-99 For Student Use Only
  2. 2. Systems <ul><li>Skeletal System: </li></ul><ul><ul><li>Function of SS: support and protect internal organs </li></ul></ul><ul><ul><ul><li>Made of 206 bones </li></ul></ul></ul><ul><ul><li>Parts of SS: </li></ul></ul><ul><ul><ul><li>Ligaments- join bone to bone </li></ul></ul></ul><ul><ul><ul><li>Long Bones </li></ul></ul></ul><ul><ul><ul><li>Short Bones </li></ul></ul></ul><ul><ul><ul><li>Flat Bones </li></ul></ul></ul><ul><ul><ul><li>Irregular Bones </li></ul></ul></ul>
  3. 3. Systems <ul><li>Bones of the SS: </li></ul><ul><ul><li>Long Bones- humerus (upper arm) and femur (thigh bone)- support weight of body and movement </li></ul></ul><ul><ul><li>Short Bones- phalanges (fingers)- same as long bones but smaller </li></ul></ul><ul><ul><li>Flat Bones- ribs and cranium- protect vital organs </li></ul></ul><ul><ul><li>Irregular Bone- vertabrae (backbone)- bones that do not fit in other categories. </li></ul></ul>
  4. 4. Systems <ul><li>Functions of SS: </li></ul><ul><ul><li>1. Give support and shape to body </li></ul></ul><ul><ul><li>3. Protects vital organs </li></ul></ul><ul><ul><li>2. Provides attachments for muscle </li></ul></ul><ul><ul><ul><li>Works with the muscular system </li></ul></ul></ul><ul><ul><li>Houses bone marrow which makes the red blood cells. </li></ul></ul><ul><ul><ul><li>Marrow- soft, fatty system of vessels found in the porous center of a long bone </li></ul></ul></ul>
  5. 5. Systems <ul><li>Muscular System: </li></ul><ul><ul><li>Function of MS: produce movement for your body </li></ul></ul><ul><ul><ul><li>½ bodies weight is muscle </li></ul></ul></ul><ul><ul><ul><li>650 muscles in the body </li></ul></ul></ul><ul><ul><li>Parts of the Muscular System </li></ul></ul><ul><ul><ul><li>Skeletal Muscles- (voluntary) you control </li></ul></ul></ul><ul><ul><ul><ul><li>Tendons: connect bone to muscle </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Involuntary Muscles- heart, digestive system, respiratory system </li></ul></ul></ul></ul>
  6. 6. Systems <ul><li>Endocrine System: </li></ul><ul><ul><li>Function of ES- to create chemicals called hormones </li></ul></ul><ul><ul><ul><li>Hormones- chemical substances which control growth, digestion, etc. </li></ul></ul></ul><ul><ul><li>Parts of ES: </li></ul></ul><ul><ul><ul><li>Gland- a structure that secretes some substance (use ductless glands or endocrine glands) </li></ul></ul></ul><ul><ul><ul><ul><li>All substances have to travel through the blood stream </li></ul></ul></ul></ul>
  7. 7. Systems <ul><li>Endocrine System: </li></ul><ul><ul><li>Exerts control on organs </li></ul></ul><ul><ul><ul><li>Causes organs to speed up or slow down </li></ul></ul></ul><ul><ul><ul><li>Certain hormones only control certain organs </li></ul></ul></ul><ul><ul><li>Hormones help nervous system control body </li></ul></ul>
  8. 8. Systems <ul><li>Reproductive System: </li></ul><ul><ul><li>Function of RS: to produce new living organisms </li></ul></ul><ul><ul><li>Main Organs: </li></ul></ul><ul><ul><ul><li>Ovaries- FEMALE- produce egg </li></ul></ul></ul><ul><ul><ul><ul><li>Egg- female reproductive cell </li></ul></ul></ul></ul><ul><ul><ul><li>Testes- MALE- produce sperm </li></ul></ul></ul><ul><ul><ul><ul><li>Sperm- male reproductive cell </li></ul></ul></ul></ul><ul><ul><li>Endocrine system (hormones) create differences in men and woman </li></ul></ul>
  9. 9. Systems <ul><li>Nervous System: </li></ul><ul><ul><li>Function of NS: coordinate the activities of your body- control body functions </li></ul></ul><ul><ul><ul><li>Central Nervous System- consists of brain and spinal cord </li></ul></ul></ul><ul><ul><ul><li>Peripheral Nervous System- composed of nerves and nerve tissue called ganglia </li></ul></ul></ul><ul><ul><ul><li>Impulses- electrochemical messages </li></ul></ul></ul><ul><ul><ul><ul><li>Impulses travel from brain throughout the body </li></ul></ul></ul></ul>

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