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.
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.
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.