Bones of pelvic girdle forms a cavity in which head of the femur is fitted are
(a) Ilium only
(b) Ilium and ischium
(c) Ilium,ischium, and pubis
(d) Ischium and pubis

Options

A. Ilium only
B. Ilium and ischium
C. Ilium,ischium, and pubis
D. Ischium and pubis

Answer

To solve the question regarding which bones of the pelvic girdle form a cavity for the head of the femur, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which bones of the pelvic girdle create a cavity that accommodates the head of the femur.

2. **Identify the Bones of the Pelvic Girdle**: The pelvic girdle is composed of three main bones: the ilium, ischium, and pubis.

3. **Visualize the Structure**: The head of the femur fits into a socket called the acetabulum, which is formed by the fusion of the ilium, ischium, and pubis.

4. **Analyze the Options**:
- (a) Ilium only: This option is incorrect because the ilium alone does not form the complete cavity.
- (b) Ilium and ischium: This option is also incorrect as it excludes the pubis, which is essential for forming the acetabulum.
- (c) Ilium, ischium, and pubis: This option is correct since all three bones together form the cavity for the femur's head.
- (d) Ischium and pubis: This option is incorrect as it does not include the ilium.

5. **Select the Correct Answer**: Based on the analysis, the correct answer is (c) Ilium, ischium, and pubis.

### Final Answer:
(c) Ilium, ischium, and pubis

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