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INTRODUCTION OF HUMAN BODY

INTRODUCTION OF HUMAN BODY. Mastura Johar. Page 007. BASIC STRUCTURE OF THE BODY. CELL – Basic unit, all shape and sizes. TISSUE - Groups of cells combined, Example nerves, muscles and connective tissue. These in turn form organs and organ systems. (Lungs, Heart). THE SKELETAL SYSTEM.

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INTRODUCTION OF HUMAN BODY

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  1. INTRODUCTION OF HUMAN BODY Mastura Johar

  2. Page 007

  3. BASIC STRUCTURE OF THE BODY • CELL – Basic unit, all shape and sizes. • TISSUE - Groups of cells combined, Example nerves, muscles and connective tissue. These in turn form organs and organ systems. (Lungs, Heart)

  4. THE SKELETAL SYSTEM • 226 bones in human bodies • Bones Function – • Support and movement and • storage red blood cells. • Protection for internal organs such as brain. • Consist – • Veterbrae - support • Long bones (Arms & leg) -movement • Rib Cage – protect body’s vital organ • Shorter Bundles of bone – more moveable

  5. Page 015

  6. SKELETON 226 bones in a human body

  7. JOINTS • Connection between two or more bones. • Fixed (ribs) or movable (knee) •  5 major types of joints - Ball & socket – circular movements in most direction - Hinge joint –open & shut in a similar fashion to a door hinge. - Vertebral joints – connect large bones to a spine. - Sliding joints – move from side to side and up down. (Wrist & ankle) - Pivot Joints – Rotates around bony prominence to another bone. (first cervical vertebra rotates around second cervical.

  8. MUSCULAR SYSTEM • 40% body mass. • To move bones • 3 Types of muscle • Smooth muscle (arteries, stomach) • Cardiac muscles (muscle of the heart) • Skeletal muscle or Striated muscle (arm, leg)

  9. Page 019

  10. MUSCLES 630 muscles in a human body 630 muscles in a human body

  11. MUSCLES • Skeletal muscles only pull on the bone they do not push a bone. • Skeletal muscles usually works in pairs. • Skeletal muscle has an origins and an insertion – determines the direction it move. • Muscles contract or relax. Agonist or antagonist facilitate the move.

  12. THANK YOU Mastura Johar

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