Consider the following statements:

I. Myasthenia gravis is an autoimmune disorder affecting the neuromuscular junction

II. Muscular dystrophy is a progressive degeneration of skeletal muscles mostly due to a genetic disorder

III. Tetany is rapid spasms in muscles due to high Ca++ in body fluid.

Which of the above statements are true?

1. I and II only

2. I and III only

3. II and III only

4. I, II and III

Subtopic:  Disorders of Muscular and Skeletal System |
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Consider the following statements:

I. Proximal radioulnar joint is a type of ellipsoidal joint.

II. The first carpo-metacarpal joint is a saddle joint.

III. Gleno-humeral joint is a ball and socket joint.

Which of the above statements are true

1. I and II only

2. I and III only

3. II and III only

4. I, II and III

Subtopic:  Synovial Joint |
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Match each item in Column I with one item in Column II and chose your answer from the codes given below:

Column I

Column II

I. Smooth muscle

II. Skeletal muscle

III. Cardiac muscle

1. Striated, voluntary

2. Non-Striated, involuntary

3. Striated, Involuntary

 

Codes

             I           II         III 

(1)         1           2           3

(2)         3           1           2

(3)         2           1           3

(4)         1           3           2

Subtopic:  Skeletal Muscle: Basic Anatomy |
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Match each item in Column I with one item in Column II and chose your answer from the codes given below:

Column I

Column II

I. Acetabulum

II. Glenoid Cavity

III. Vertebrosternal ribs

IV. Vertebrochondral ribs

1. Pectoral girdie

2. Pelvic girdie

3. 7 pairs

4. 3 pairs

 

Codes

             I           II         III         IV

(1)         1           2           3           4

(2)         2           1           4           3

(3)         2           1           3           4

(4)         1           2           4           3

Subtopic:  Sternum & Ribs | Appendicular Skeleton: Girdle |
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Match each item in Column I with one item in Column II and choose your answer from the codes given below :

 

Column I

 

Column II

I.

Influx of sodium

1.

Original establishment of RMP

II.

Efflux of potassium

2.

Repolarization

III.

Na+/K+ pump

3.

Depolarization

IV.

Ca++

4.

Plateau in cardiac muscles


Codes :

 

I

II

III

IV

1.

3

2

4

1

2.

2

1

4

3

3.

2

1

3

4

4.

3

2

1

4

 

Subtopic:  Muscle Contraction: Other Considerations |
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Which of the following joints would allow no movement?

(1) Fibrous joint

(2) Cartilaginous joint

(3) Synovial joint

(4) Ball and socket joint

Subtopic:  Fibrous & Catilaginous Joints |
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Out of 'X' pairs of ribs in humans only 'Y' pairs are true ribs. Select the option that correctly represents values of X and Y and provides their explanation.

(1) X = 12, Y = 7           True ribs are attached, dorsally to 

                                      vertebral column and ventrally to

                                      the sternum.

(2) X = 12, Y = 5           True ribs are attached dorsally to

                                      vertebral column and sternum on

                                      the two ends.

(3) X = 24, Y = 7           True ribs are dorsally attached to

                                      vertebral column, but are free on

                                      ventral side.

(4) X = 24, Y = 12         True ribs are dorsally attached to 

                                      vertebral column, but are free on 

                                      ventral side.

 

Subtopic:  Sternum & Ribs |
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The pivot joint between atlas and axis is a type of

(1) fibrous joint                 

(2) cartilaginous joint

(3) synovial joint               

(4) saddle joint

Subtopic:  Synovial Joint |
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Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction.

(1)  Calcium              

(2)  Magnesium

(3)  Sodium              

(4)  Potassium.

Subtopic:  Sliding Filament Theory |
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Lack of relaxation between successive stimuli in sustained muscle contraction is known as 

(1) fatigue   

(2) tetanus   

(3) tonus   

(4) spasm

Subtopic:  Muscle Contraction: Other Considerations |
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