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Chapter 6

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  • The bone cells that contribute to increases in calcium in blood are the

    osteoblasts.

    chondrocytes.

    osteocytes.

    osteoclasts.

    osteons.

    Osteoclasts

  • The connective tissue covering the outer surface of a bone is (the)

    endosteum.

    periosteum.

    articular cartilage.

    matrix.

    osteon.

    Periosteum

  • The shaft of a long bone is called the ________.

    canaliculus

    epiphysis

    lamella

    diaphysis

    trabecula

    Diaphysis

  • The hormone calcitonin functions to

    elevate calcium levels in body fluids.

    depress calcium levels in body fluids.

    stimulate osteoclast activity.

    stimulate the absorption of calcium and phosphate ions in the digestive tract.

    depress osteoblast activity.

    depress calcium levels in body fluids.

  • The smooth, rounded, or oval articular process of a bone is termed a

    ridge.

    condyle.

    trochlea.

    head.

    crest.

    Condyle

  • Which of the following is a freely movable joint?

    synarthrosis

    amphiarthrosis

    diarthrosis

    syndesmosis

    Diathrosis

  • What kind of cells secrete the synovial fluid?

    chondrocytes

    fibroblasts

    mucosae

    plasma cells

    Fibroblasts

  • What is the name of the mature bone cell that lives in the lacunae of bone?

    adipocytes

    osteocytes

    chondrocytes

    periosteum

    Osteocytes

  • Which bone cells are responsible for the formation of new bone matrix?

    Osteocytes are the bone cells that produce new bone matrix.

    Osteoblasts are the bone cells that produce new bone matrix.

    Osteoclasts are the bone cells that produce new bone matrix.

    Osteoblasts are the bone cells that produce new bone matrix.

  • What types of joints are freely movable?

    gomphoses

    diarthroses

    synarthroses

    amphiarthroses

    Diathroses

  • What is the name of the pelvic joint cavity that articulates with the head of the femur to form the hip joint?

    pubic symphysis

    trochlea

    acetabulum

    trochanter

    Acetabulum

  • Which of the following is NOT a function of the skeletal system?

    Vitamin D3 synthesis

    Protects internal organs

    Leverage for movement of arms and legs

    Production of blood cells

    Stores calcium and phosphate

    Vitamin D3 synthesis

  • What is the importance of the lipids that are stored in the skeletal system?

    They help remove excess body heat.

    They promote absorption of calcium.

    They are stored as energy reserves.

    They produce red blood cells.

    They are stored as energy reserves

  • Where in the skeletal system are blood cells produced?

    Muscles

    Mineral reserves

    Red bone marrow

    Yellow bone marrow

    Dermis

    Red bone marrow

  • Which of the following is true?

    Skeletal muscles pull on bones to produce movement.

    The skin provides structural support for the bones.

    Blood cells are produced in the skin.

    Bones help remove excess heat from the body.

    Calcium, phosphate, and other minerals are stored in the skin.

    Skeletal muscles pull on bones to produce movement.