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
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