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A cup shaped cavity for articulation of ...

A cup shaped cavity for articulation of femur head is `:`

A

Acetabulum

B

Glenoid cavity

C

Sigmoid notch and olecronon process of ulna

D

Outurator foramen

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question "A cup shaped cavity for articulation of femur head is:", we will follow these steps: ### Step 1: Understand the Question The question is asking for a specific anatomical structure that serves as a cup-shaped cavity where the head of the femur (the thigh bone) articulates. ### Step 2: Identify the Relevant Bones We need to consider the bones involved in the articulation of the femur. The femur articulates with the hip bone, which is made up of three fused bones: the ilium, ischium, and pubis. ### Step 3: Locate the Cavity Within the hip bone, there is a specific cavity that allows the head of the femur to fit into it. This cavity is essential for the hip joint's function. ### Step 4: Name the Cavity The cavity that articulates with the head of the femur is called the **acetabulum**. It is a cup-shaped structure that provides a socket for the femur. ### Step 5: Review the Options Now, let's review the options provided in the question: 1. Acetabulum 2. Glenoid cavity 3. Sigmoid notch 4. Olecranon process of ulna 5. Obturator foramen From our understanding, the acetabulum is the correct answer as it is the cavity that articulates with the femur. ### Conclusion Thus, the answer to the question is **Acetabulum**. ---
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