The characteristics and an example of a  synovial joint in humans is

  • Characteristics

    Examples

    Fluid cartilage between two bones, limited movements

    Knee joints

  • Characteristics

    Examples

    Fluid filled between two joints, provides cushion

    Skull bones

  • Characteristics

    Examples

    Fluid filled synovial cavity between two bones

    Joint between atlas and axis

  • Characteristics

    Examples

    Fluid filled synovial cavity between two bones

    Joint between atlas and axis


C.

Characteristics

Examples

Fluid filled synovial cavity between two bones

Joint between atlas and axis

The joint between atlas an axis in the pivot, which is an example of synovial joint characterised by the presence of a fluid -filled the synovial cavity between the articulating surface of the two bones. Knee joint (hinge joint) is a synovial joint characterised by the presence of fluid-filled synovial cavity between the articulating surface of the two Bones. Fluid cartilage between two bones having limited movements is slightly movable joint. In freely movable joints fluid filled between two joints provides a cushion in gliding joint. the articulating bones can slide upon another.

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Which type of tissue correctly matches with its location?

  • Tissue Location
    Areolar tissue Tendons
  • Tissue Location
    ATransitional epithelium Teip of nose

  • Tissue Location
    Cuboidal epithelium Tlining of stomach

  • Tissue Location
    Cuboidal epithelium Tlining of stomach


D.

Tissue Location
Cuboidal epithelium Tlining of stomach

Columnar epithelium is present in the stomach lining.
Tendon is dense connective tissue and connects muscle to bone.
Tip of nose consists of elastic cartilage. 

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Lack of relaxation between successive stimuli in sustained muscle contraction is known as

  • fatigue

  • tetanus

  • tonus

  • tonus


B.

tetanus

Tetanus results in sustained muscular spasms. This is due to muscle fatigue.

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Select the correct statement with respect to locomotion in humans

  • A decreased level of progesterone cause osteoporosis in old people

  • Accumulation of uric acid crystals in joints causes their inflammation.

  • The vertebral column has 10 thoracic

  • The vertebral column has 10 thoracic


B.

Accumulation of uric acid crystals in joints causes their inflammation.

Inflammation of joints due to the accumulation of uric acid crystals is gout.The fibrous joint is formed by the flat skull bones, which fuse end - to -end with the help of dense fibrous connective tissue in the form of sutures to form cranium. The vertebral column is formed by 26 serially arranged units called vertebral. The less secretion of progesterone cause abortion as it basically supports a pregnancy.

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The H -zone in the skeletal muscle fibre is due to

  • the absence of myofibrils in the central portion of A-band

  • the central gap between myosin filaments in the A-band

  • the central gap between actin filaments extending through myosin filaments in the A-band

  • the central gap between actin filaments extending through myosin filaments in the A-band


C.

the central gap between actin filaments extending through myosin filaments in the A-band

H-zone in skeletal muscle is the central gap between actin filaments extending through myosin filaments in the A -band. Alternate myosin filaments in the A-band. An alternate arrangement of dark and light bands gives the striated appearance to a skeletal muscle. At the centre of A-band, a comparatively less dark zone called H -zone is present. In the centre of H-zone, M -line is present, formed by the threats that connect the myofilaments.

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