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The human ribs are termed as bicephalic because:

1. They have two articulations surfaces on their ventral end.
2. They have two articulations surfaces on their dorsal end.
3. They have two articulations surfaces on their ventral end and two on the dorsal end.
4. They have two articulations surfaces on their ventral end and one on the dorsal end.
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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 girdle

2. Pelvic girdle

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

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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.

 

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Which one of the following items gives its correct total number?

1.  Floating ribs in humans           - 4 

2.  Amino acids found in proteins  -16

3.  Types of diabetes                   - 3

4.  Cervical vertebrae in humans  - 8

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In human body, which one of the following is anatomically correct ?

1. Floating ribs-2 pairs

2. Collar bones-3 pairs

3. Salivary glands-1 pair

4. Cranial nerves-10 pairs

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