Biceps are attached with
(a) Radius
(b) Ulna
(c) Femur
(d) Humerus

Options

A. Radius
B. Ulna
C. Femur
D. Humerus

Answer

To determine where the biceps are attached, we can follow these steps:

1. **Identify the Location of Biceps**: The biceps muscle is located on the front part of the upper arm. This is crucial to know as it helps narrow down the options.

2. **Understand the Structure of Biceps**: The biceps muscle consists of two parts: the short head and the long head. Both parts work together as a single muscle.

3. **Connection of Biceps to Bones**: The biceps are connected to the bones of the arm through tough connective tissues known as tendons. These tendons play a key role in attaching muscles to bones.

4. **Identify the Relevant Bones**: The biceps are attached to the proximal end of the arm. The proximal end is formed by the humerus bone. The distal end of the arm includes the radius and ulna, which are located in the forearm.

5. **Evaluate the Options**:
- (a) Radius: This is part of the forearm, not where the biceps attach.
- (b) Ulna: This is also part of the forearm, not the attachment point for the biceps.
- (c) Femur: This is a bone in the leg, unrelated to the biceps.
- (d) Humerus: This is the correct bone where the biceps are attached.

6. **Conclusion**: Based on the above analysis, the biceps are attached to the humerus.

**Final Answer**: (d) Humerus

---