Biology
Assertion (A): Each hip bone is made up of three fused bones - ilium, ischium and pubis.
Reason (R): Hip bone is technically termed as pelvis. It is wider and trough-shaped in females.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Skeleton
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Answer
A is True and R is False.
Reason — Each hip bone is formed by the fusion of three bones: Ilium, Ischium and Pubis. These fuse during development to form a single structure.
The hip bone is a part of the pelvis, not the same as the pelvis. The pelvis includes: Two hip bones, sacrum and coccyx. The female pelvis is wider, shallower, and more rounded, to facilitate childbirth.
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Related Questions
Ischium and Pubis are two specific bones of the girdles in the human body, belonging to (P) …………… and (Q) …………… girdles respectively.
- P — Pectoral, Q — Pelvic
- P — Pectoral, Q — Pectoral
- P — Pelvic, Q — Pelvic
- P — Pelvic, Q — Pectoral
Assertion (A): Axial skeleton includes the limbs and girdles of the human body.
Reason (R): Axial skeleton lies in the central axis of the human body.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Assertion (A): Synovial fluid provides lubrication to the bones and removes friction.
Reason (R): Synovial joint is found between the bones of cranium. These joints contain synovial fluid between them.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Assertion (A): Hinge joint occurs between the bones of wrist. It provides movement in only one direction.
Reason (R): Hinge joint is found in shoulders. It provides movement in all directions.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.