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Locomotion and Movement Test - 22

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Locomotion and Movement Test - 22
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  • Question 1
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    Which of the following is an immovable joint?  
    Solution
    There are several examples of these joints in the human body, including joints between the bones of the skull, joints in the pelvis and joints between the teeth and the mandible, or lower jaw, and the maxilla, or upper jaw. Another name for immovable joins is a synarthrosis, which simply means immovable. The two types of immovable joints are fibrous joints and cartilaginous joints.
    Therefore, (b) is the correct answer. 
  • Question 2
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    Excessive movement of slightly movable joint will cause damage to ____________. 
    Solution
    In slightly movable joint the joint between two vertebrae a small amount of movement is permitted, and indeed necessary between the bones, but excessive movement would cause damage to a critical area of the body (the spinal cord). Therefore, (b) is the correct answer. 
  • Question 3
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    Which of the following are skeletal disorders? 
    Solution
    Arthritis is a disorder of the joints. It involves inflammation of one or more joints. When affected by arthritis, the joint or joints affected may be painful to move, may move in unusual directions or may be immobile completely. Osteoporosis is a disease of bone where there is reduced bone mineral density, increasing the likelihood of fractures. 
    So, the correct answer is 'Both (B) and (A)'.
  • Question 4
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    Locomotion is possible due to ________ skeleton.  
    Solution
    The appendicular skeleton (126 bones) is formed by the pectoral girdles, the upper limbs, the pelvic girdle or pelvis, and the lower limbs. Their functions are to make locomotion possible and to protect the major organs of digestion, excretion and reproduction.
  • Question 5
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    Slightly movable joints have a cushion of ___________ between them.  
    Solution
    Slightly moveable joint are joints which have an only limited range of movement and this is due to either fibrous tissue or cartilage. Some examples on where you can find them are: - Between the vertebrae of the spinal cord. Cartilaginous, or slightly movable joints, have a cushion of cartilage in between the bones, with the bones resting on these beds of cartilage. This cushion of cartilage stops the bones from rubbing together.
    Therefore, (d) is the correct answer. 
  • Question 6
    1 / -0
    Which is common to kidney and skeleton in mammals?
    Solution

    Pelvis is common to kidney and skeleton in mammals. Renal pelvis is the hollow funnel in the outlet of the kidney, into which urine is discharged before entering the ureterPelvic girdle also referred as hip girdle consists of two hip bones. Hence, option C is correct.

  • Question 7
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    Which type of muscle is found in heart? 
    Solution
    • There are three types of muscle, skeletal or striated, cardiac, and smooth. 
    • Muscle action can be classified as being either voluntary or involuntary.
    • Cardiac muscles are striated and involuntary.
    • They are found only in the heart. 
    • They work continuously throughout human life.
    Thus, the correct answer is (A).
  • Question 8
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    Tetany is caused by
    Solution
    The muscle cramping associated with tetany can be long lasting and painful. A common cause of tetany is very low levels of calcium in the body. The medical term for low calcium is hypocalcemia. Tetany is a disorder characterized by enhanced neuromuscular excitability that is caused by various metabolic abnormalities. Hypoparathyroidism results in diminished concentration of parathyroid hormone in the blood, which causes deficiencies of calcium and phosphorus compounds in the blood and results in muscular spasms.
    So, the correct answer is 'Hypoparathyroidism'
  • Question 9
    1 / -0
    Which joint joins the bones with a joint capsule? 
    Solution
    A synovial joint joins bones with a fibrous joint capsule that is continuous with the periosteum of the joined bones, constitutes the outer boundary of a synovial cavity, and surrounds the bones' articulating surfaces. The synovial (or joint) cavity is filled with synovial fluid. They are the most common and most movable type of joint in the body of a mammal. 
    Therefore, (c) is the correct answer.
  • Question 10
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    Muscle cells contain _________ protein.
    Solution
    Muscle is a soft tissue found in most animals. Muscle cells contain protein filaments of actin and myosin that slide past one another, producing a contraction that changes both the length and the shape of the cell. Therefore, (d) is the correct answer. 
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