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प्रश्न
The diagram below represents the forelimb of man.
(a) Label the parts marked 1 to 9.
(b) Mention the antagonistic muscles.
(c) Which muscle will contract when the hand is bent?
(d} Name the main bone of pectoral girdle.
(e) Name the type of joint present in shoulder girdle.
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उत्तर
(a)
1. Scapula;
2. Shoulder joint;
3. Humerus;
4. Bicep;
5. Tricep;
6. Radius;
7. Tricep
8. Elbow Joint;
9. Ulna.
(b) Bicep muscles and triceps are antagonistic muscles.
(c) Bicep muscles.
(d) Shoulder bones.
(e) Ball and socket joint.
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