skeletal system

• The human body is made up of different kinds of bones called the skeleton
• The adult human skeleton consists of 206 bones that are connected to one another by ligaments
• At birth, infants have around 300 bones that fuse together as they become adults
• Skeletal system

  The system of bones that work together as the internal framework of the body
• Functions of the skeletal system

  • Body support
  • Facilitation of movement
  • Protection of internal organs
  • Storage of minerals and fats
  • Blood cell formation
• Divisions of the skeletal system

  • Axial skeleton
  • Appendicular skeleton
• Axial skeleton

  Includes the skull, vertebral column, ribs, and sternum
• Appendicular skeleton

  Includes the bones of the shoulder, arms, hands, hips, legs, and feet
• Classifications of bones

  • Long bones
  • Short bones
  • Flat bones
  • Irregular bones
• Skull


  Consists of the cranium and facial bones
• Cranium


  • Made up of 8 bones joined together to form a rigid case that protects the brain
• Face


  • Made up of 14 facial bones
• Spinal column/Vertebrae


  Irregular bones that protect the spinal cord
• Ribs


  The bones at the side of the chest, with 12 pairs
• Collarbone


  Found in front of the shoulder
• Pelvic bones


  Support the lower parts of the body and aid the movement of the legs
• Bone marrow


  Found inside bones, important for manufacturing blood cells
• Bones protect soft tissues, such as brain, heart, lungs, kidneys, liver, spinal cord, etc.
• Bones support weight and allow movement
• The arm has 3 bones: kneecap, hipbone, and backbone.
• The breastbone is a long flat bone in the middle of the chest.
• the breastbone and ribs enclose the heart and lungs
• Backbone (vertebral column)

  A series of bones that run from the skull to the pelvis, enclosing and protecting the spinal cord. It is not part of the arm, but I assume you meant to refer to the upper arm bone, which is the humerus.
• Hipbone (innominate bone)

  A large, flattened bone that forms the pelvis and connects the legs to the trunk.
• Kneecap (patella)

  A small, triangular bone located at the front of the knee joint. It protects the knee and facilitates smooth movement.
• Bones

  Rigid structures that provide support, shape, and protection to the body.
• Arm

  The upper limb of the human body, which extends from the shoulder to the hand.