skeletal

    Cards (40)

    • What are bone cells found in?
      Bone tissue
    • What is the role of osteocytes?
      Maintain bone tissue
    • How do osteocytes respond to changes in pressure?
      They monitor changes affecting bones
    • What signals do osteocytes send to other bone cells?
      Signals to osteoblasts and osteoclasts
    • What do osteoblasts do?
      Form new bone
    • What happens to osteoblasts after they complete their function?
      They differentiate into osteocytes
    • What is the function of osteoclasts?
      Break down bone tissue
    • Why do osteoclasts break down bone tissue?
      To make space for osteoblasts
    • What is necessary for bone health?
      A balance between osteoblasts and osteoclasts
    • When are osteoblasts more active?
      When bones are growing
    • What are the functions of the musculoskeletal system?
      • Movement: Allows body movement and muscle attachment
      • Support: Keeps body upright and provides framework
      • Protection: Shields internal organs
      • Production of blood cells: Produces blood cells in marrow
      • Mineral storage: Stores minerals like calcium and iron
    • How many types of bones are there in the human body?
      Five types
    • What are the five types of bones?
      1. Long bones
      2. Short bones
      3. Flat bones
      4. Sesamoid bones
      5. Irregular bones
    • What characterizes long bones?
      Mostly compacted bones with little marrow
    • What is the function of short bones?
      Support weight and help movement
    • What is the structure of flat bones?
      Two outer layers of compact bone and spongy bone
    • What is the role of sesamoid bones?
      Protect tendons from wear and stress
    • What defines irregular bones?
      Unusual shape that doesn't fit other categories
    • What are the two parts of the skeleton?
      • Axial skeleton
      • Appendicular skeleton
    • What does the axial skeleton include?
      • Cranium
      • Ribs
      • Sternum
      • Vertebral column
    • What does the appendicular skeleton include?
      • Clavicle
      • Humerus
      • Phalanges
      • Radius
      • Femur
      • Ulna
      • Patella
      • Scapula
      • Tibia
      • Ilium
      • Fibula
      • Pubis
      • Tarsals
      • Ischium
      • Metatarsals
      • Carpals
      • Metacarpals
    • What is a joint?
      A place where two or more bones meet
    • What are the three types of joints?
      Fibrous, cartilaginous, synovial
    • What characterizes fibrous joints?
      Little or no movement, held by connective tissue
    • What is the function of cartilaginous joints?
      Allow limited movement
    • What are synovial joints known for?
      Allow a wide range of movement
    • What are the roles of connective tissues in joints?
      • Ligaments: Stabilize joints and connect bones
      • Cartilage: Reduces friction at joints
      • Tendons: Attach muscles to bones
    • What is the role of cartilage in joints?
      Reduces friction of movement
    • What does the synovial membrane do?
      Secretes synovial fluid for lubrication
    • What are ligaments made of?
      Tough, elastic bands of connective tissue
    • What do tendons connect?
      Muscles to bones
    • What are bursas?
      Fluid-filled sacs that cushion joints
    • What is synovial fluid?
      A clear, thick fluid for lubrication
    • What are the types of muscle in the human body?
      • Smooth muscle: Involuntary, found in organs
      • Cardiac muscle: Involuntary, found in the heart
      • Skeletal muscle: Voluntary, attached to skeleton
    • What is the difference between involuntary and voluntary muscles?
      Involuntary muscles are not consciously controlled
    • Where is smooth muscle found?
      In internal organs and blood vessels
    • What is the function of cardiac muscle?
      Contracts involuntarily to pump blood
    • What is the role of skeletal muscle?
      Allows voluntary movement
    • What type of muscle allows involuntary movement?
      Smooth and cardiac muscle
    • What type of muscle allows voluntary movement?
      Skeletal muscle