21. Haversian canals occur in

A Humerus
B Pubis
C Scapula
D Clavicle
Answer :   Humerus
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22. Part of pectoral girdle is

A IIeum
B Glenoid cavity
C Acetabulum
D Sternum
Answer :   Glenoid cavity
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23. Functionally cardiac muscles are similar to

A Unstriped muscles
B Striped muscles
C Striped & Unstriped muscles
D None of the above
Answer :   Unstriped muscles
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24. The functional unit of contractile system in striated muscle is

A myofibril
B sarcomere
C $$Z$$-band
D cross bridges
Answer :   sarcomere
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25. SA Node is

A Group of specilised muscle fibers
B Cartilage in node of heart
C Conncetive tissue node
D None of the above
Answer :   Group of specilised muscle fibers
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26. Hinge joint is present between

A Femur and ulna
B Humerus and ulna
C Femur and pectoral girdle
D Femur and pelvic girdle
Answer :   Humerus and ulna
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27. Study of joints known as

A Osteology
B Arthrology
C Craniology
D Kinesiology
Answer :   Arthrology
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28. Which ion is essential for muscle contraction?

A $$Na$$
B $$K$$
C $$Ca$$
D $$Cl$$
Answer :   $$Ca$$
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29. Humerus is different from femur by presence of

A Spines
B Deltoid Ridge
C Glenoid cavity
D None of the above
Answer :   Deltoid Ridge
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30. Myosin filament appear dark under microscope due to

A Dark colour
B Melanin colour
C Black colour
D Double refractive index
Answer :   Double refractive index
Discuss Question


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