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Locomotion and Movement Test - 27

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Locomotion and Movement Test - 27
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  • Question 1
    1 / -0
    Obturator foramen occurs in
    Solution
    The pelvic girdle is formed by a pair of bone which is the hip bone or coxal bone. The large opening in the anteroinferior hip bone between the ischium and pubis is the obturator foramen through which nerves and blood vessels pass. So, the correct answer is 'Pelvic girdle'.
  • Question 2
    1 / -0
    Thoracic cage of man is formed of?
    Solution
    The correct option is B.
    In mammals, like rabbit and humans thoracic vertebrae, ribs and sternum together form the rib cage. In humans, the rib cage, also known as the thoracic cage, is a bony and cartilaginous structure that surrounds the thoracic cavity and supports the pectoral girdle (shoulder girdle), forming a core portion of the human skeleton. 
  • Question 3
    1 / -0
    Major protein in thick filaments of skeletal muscle fibre is?
    Solution
    • The main contractile components of a muscle fibre include:
    •  Thick filaments - The major protein of a thick filament is myosin. 
    • Thin filaments - The major proteins of a thin filament include actin, as well as troponin and tropomyosin. Hence, Major protein in thick filaments of skeletal muscle fibre is myosin.
    So, the correct answer is 'myosin'.
  • Question 4
    1 / -0
    Ilium is the part of
    Solution
    • Pelvic girdle consists of two coxal bones. Each coxal bone is formed by the fusion of three bones i.e each half of pelvic girdle is made up of ilium, ischium, and pubis.
    •  At the point of fusion of the ilium, ischium and pubis bones there is a cavity called acetabulum to which the thigh bone (femur) articulates. Hence ilium is the part of pelvic girdle.
    • So,the correct answer is 'Pelvic girdle'.
  • Question 5
    1 / -0
    Major protein in the thick filaments of skeletal muscle fiber is
    Solution
    • Skeletal muscle fiber is made up of two types of filaments. They are thick filament and thin filament.
    • Thick filament is made up of a protein called Myosin.
    • Each myosin (thick filament) is made up of Many monomeric proteins called Meromyosins.
    • Hence Major protein in the thick filaments of skeletal muscle fiber is Myosin.
    • So, the correct answer is 'Myosin'.
  • Question 6
    1 / -0
    Which of the following is the property of cardiac muscle?
    Solution
    • Cardiac muscle is a specialized tissue that is found only in the heart.
    • Their contraction can't be controlled thus they are involuntary in nature.
    • As the function of cardiac muscles is to continuously and repeatedly contract and relax, they are needed to be striated. 
    • The arrangement of myofibrils due to which the light and dark bands appear.
    • Cardiac muscles are primarily powered by mitochondria (the energy house of the cell), similar to your other muscles. However, cardiac muscles have as much as 10 times the density of mitochondria, thus they cannot get fatigued.
    So, the correct answer is 'all the above'.
  • Question 7
    1 / -0
    At times ligaments and tendons are overstretched or torn. The phenomenon is 
    Solution
    • The bands of fibrous tissue that connect bones to bones at joints are called as Ligaments and which connect muscles to the bones are called as tendons.
    • At times ligaments and tendons are overstretched or torn. The phenomenon is called a sprain.
    • Sprain happen most often in the ankle but can occur at any joint, such as the wrist or knee.”
    • So, the correct answer is a 'Sprain'.
  • Question 8
    1 / -0
    The given image can be related to 

    Solution
    The given image is related to a smooth muscle because:
    1. It has no striations i.e. is unstriated,
    2. It has a single centrally located nucleus, and
    3. Small and tapered structures with ends reducing in size.

  • Question 9
    1 / -0
    Acromion process is part of
    Solution
    The acromion is a large bony projection on the superior end of the scapula. It is an important position of the skeletal system and a muscle attachment point that is essential to the function of the shoulder joint. 
    So, the correct answer is 'pectoral girdle'.

  • Question 10
    1 / -0
    Glenoid cavity is found in
    Solution
    Glenoid cavity is the socket in which the humerus rests in the shoulder. This region is called the pectoral gridle. The correct answer is option C.
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