LOCOMOTION AND MOVEMENT NEET MCQ

Q31.Intervertebral discs are the joints between bodies of adjacent vertebrae. This is an example of 

(1)Cartilaginous joint 

(2) Fibrous joint 

(3) Saddle joint 

(4) Gliding joint 

Ans.1

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Q32.Decreased level of estrogen in the females after menopause is implicated as a common causative factor of

(1) Osteoarthritis

(2) Osteoporosis

(3) Rheumatoid arthritis

(4) Muscular dystrophy

Ans.2

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Q33.A slightly elevated ridge called, 'spine' which terminates as a flat 'acromian process' is present on 

(1) Ventral surface of scapula 

(2) Dorsal surface of scapula 

(3) Lateral surface of pubis 

(4) Centrum of thoracic vertebrae 

Ans.2

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Q34.The central part of thick filament, not overlapped by thin filaments when a muscle is in relaxed state is is called 

(1) A-zone 

(2) I-zone 

(3) H-zone 

(4) O-zone 

Ans.3

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Q35.Which of the following ion is essential for muscle contraction? 

(1) Na 

(2) K 

(3) Ca 

(4) CI 

Ans.3

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Q36. Each arm of human is made of 

(1) 30 bones 

(2) 20 bones 

(3) 60 bones 

(4) 15 bones 

Ans.1

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Q37.Which of following is not an example of synovial joint? 

(1) Joint between humerus and pectoral girdle 

(2) Joint between atlas and axis 

(3) Joint between adjacent vertebrae 

(4)  Knee joint 

Ans.3

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Q38.Rapid spasms (wild contractions) in muscle due to low Ca in body fluid 

(1) Myasthenia gravis 

(2) Muscular dystrophy

(3)  Tetany 

(4) Arthritis 

Ans.3

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Q39.Arrange the following steps in a sequence occurring during muscle contraction 

(a) Release of calcium ion into sarcoplasm

(b) Binding of calcium with a subunit of troponin on actin filaments 

(c) Neural signal reaching neuromuscular junction releases acetylcholine 

(d) Action potential generated in sarcolemma of muscle fibre 

(e) Myosin head binds to exposed active sites on actin to form cross bridge 

(1) (a), (b), (c), (d), (e)

(2) (c), (d), (a), (b), (e) 

(3) (c), (a), (b), (d), (e)

(4) (b), (d), (c), (a), (e)

Ans.2

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Q40.Number of lumbar vertebrae in human skeleton is 

(1) 12 

(2) 7 

(3) 5 

(4) 2 

Ans.3

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